Firebase vs Supabase vs Appwrite vs PocketBase vs Nhost: The Complete 2026 BaaS Comparison Guide

As of August 2026, whether you’re shipping a side project or building at a Series-funded startup, developers trying to get an app off the ground fast still face the same question: build your own backend from scratch, or reach for a Backend-as-a-Service (BaaS) platform that bundles auth, database, storage, and real-time features into one package? This BaaS comparison isn’t built on market share or brand recognition — it’s built on what each vendor’s official pricing page and official announcements actually say right now, so you don’t get tripped up by stale numbers left over from a tutorial written months ago.

The competitive landscape has genuinely shifted over the past year. In June 2026, Supabase closed a $500 million Series F that pushed its valuation to $10.5 billion, and the company says its user base has more than doubled since Series E, riding the “vibe coding” wave. Firebase answered in kind: at Cloud Next in April 2026, it rebranded its existing Data Connect as SQL Connect, marking its first real push into PostgreSQL territory. Meanwhile, the open-source, self-hostable camp — Appwrite, PocketBase, and Nhost — has been soaking up demand from developers who want to avoid vendor lock-in, forming a solid third-through-fifth tier. Net result: anyone choosing a new backend today has more genuinely viable options than ever before.

This article breaks Firebase (Google), Supabase, Appwrite, PocketBase, and Nhost down across eight sections — database design philosophy, real-world pricing, self-hosting options, and recommendations by use case. We anchor everything around the three axes that actually matter in a BaaS comparison: the database model (NoSQL vs. PostgreSQL vs. SQLite), the pricing-ceiling structure (uncapped usage billing vs. subscription vs. genuinely free), and whether you’re locked into a vendor. If you want to dig deeper into the database engines themselves, our PostgreSQL vs. MySQL vs. MongoDB database comparison is a useful companion read.

1. Executive Summary: The BaaS Comparison at a Glance

For developers and CTOs short on time, here’s every essential fact about the five leading BaaS platforms as of August 2026, compressed into one table.

📊 The Complete August 2026 BaaS Comparison Table

The row worth staring at longest here is “pricing-ceiling structure.” Firebase’s Blaze plan has no hard cap at all, and reviewers keep flagging the same risk: if traffic spikes, your bill can spike right along with it. PocketBase sits at the opposite extreme — there’s no billing system to speak of, so the only thing you need to watch is your own server bill. If you’re budgeting off this BaaS comparison, this is the line to read first.

2. Deep Dive: Core Features of the Five Leading BaaS Platforms

🔥 1) Firebase — the all-in-one Google ecosystem play, now with SQL too

• Branching out from NoSQL into PostgreSQL: Firebase doesn’t carry a single version number — it operates as a family of individual products: Firestore, Realtime Database, Authentication, Cloud Storage, Cloud Functions, Hosting, and more. At Google Cloud Next in April 2026, Google announced it was rebranding Firebase Data Connect as Firebase SQL Connect and expanding what it can do: built on Cloud SQL for PostgreSQL, it now supports real-time sync and offline caching, and lets you write native SQL queries directly instead of going through GraphQL. A 90-day free trial (no credit card required) lets you spin up a PostgreSQL instance immediately, which means the old “Firebase is NoSQL-only” reputation no longer holds up.
• Spark (free) tier limits: 1 GiB of Firestore storage, 50,000 document reads/day, 20,000 writes and 20,000 deletes/day, 100 concurrent Realtime DB connections, 50,000 monthly active users for Authentication, 5 GB of Cloud Storage, and Hosting with 10 GB of storage and 360 MB/day of transfer — all free.
• The risk baked into the Blaze (pay-as-you-go) plan: Upgrading to Blaze keeps everything free up to the same limits, then bills you at standard Google Cloud rates beyond that. A credit card is mandatory, and — critically — there is no spending cap of any kind. Commentators keep circling back to the same risk: an unexpected traffic spike can send your bill up just as fast. Cloud Functions are free for the first 2 million invocations/month, then $0.40 per million after that.
• Double-check the exact per-unit rates yourself: The precise price per 100,000 Firestore operations varied wildly across sources as of this writing, and the official firebase.google.com/pricing page doesn’t even list a detailed table — it just links out to cloud.google.com/firestore/pricing. Before you build a real budget, go check that linked table directly for the current numbers.

⚡ 2) Supabase — the open-source contender now valued at $10.5 billion

• Series F confirms the growth story: On June 4, 2026, Supabase closed a $500 million Series F led by GIC, valuing the company at $10.5 billion post-money. Every existing investor — Accel, Y Combinator, Craft, Felicis, Peak XV, Coatue — participated, Stripe bought in via a secondary, and Salesforce Ventures joined as a new investor. The round landed just seven months after Series E, pushing total funding past $1 billion. This is confirmed across multiple outlets, including TechCrunch, CNBC, and PR Newswire.
• The fundamental difference: vanilla PostgreSQL: The underlying database engine is fully managed, unmodified PostgreSQL, with native support for AI embeddings and vector search through the pgvector extension. Supabase also bundles Auth, Storage (with CDN), Edge Functions (built on Deno), and Realtime (built on Postgres change streams) — and because it’s open source, you can self-host the whole thing with Docker.
• Multigres preview: Supabase unveiled Multigres in preview, new technology designed to scale Postgres horizontally beyond the limits of a single instance. According to the company’s own announcement, the goal is scaling “to OpenAI-level scale,” though no firm GA date has been announced.
• Pricing: Free covers 500 MB of database, 1 GB of storage, 50,000 MAU, and 5 GB of egress per project — but the project auto-pauses after a week of inactivity, and you’re capped at two active projects. Pro runs $25/month per project and includes 8 GB of database ($0.125/GB over), 100 GB of storage ($0.0213/GB over), 100,000 MAU ($0.00325 per user over), and 250 GB of egress ($0.09/GB over). Team is $599/month with the same limits as Pro but adds SOC2/ISO 27001 compliance, 14-day backups, and priority support. That said, the official pricing page still carries a “pricing is in beta and subject to change” disclaimer, so it’s worth checking the live page again before you sign a contract.
• Growth metrics: Supabase says its user base has more than doubled since Series E and database count is up 600% year-over-year, and the company has specifically credited “Claude Code as the single biggest source of new signups since the start of the year.” Its GitHub star count passed 100,000 in May 2026.

🟪 3) Appwrite — free self-hosting, eight bundled services

• Stable at 1.9.6: Appwrite is an open-source, self-hosting-first BaaS, and its current stable release as of 2026 is 1.9.6 (released July 22, 2026, a follow-up fix to 1.9.5). Starting with the 1.9 line, the default database backend switched to MongoDB (MariaDB is still available as an option), and the platform now bundles eight services — Auth, Database, Storage, Functions, Messaging, Realtime, Sites (web hosting), and Imagine (image generation) — a lineup Appwrite itself pitches as “more than Firebase offers.”
• Self-hosting really is free: You can deploy it with a single Docker Compose command, and once self-hosted, there’s no metered billing from Appwrite whatsoever — you only pay for your own server infrastructure. That’s a decisive difference from Firebase, Supabase Cloud, and Nhost Cloud, and it’s an option that any budget-conscious team should weigh seriously in this BaaS comparison.
• Cloud pricing: Free includes 500,000 DB reads/month, 250,000 writes/month, 2 GB of storage, 5 GB/month of bandwidth, and up to 75,000 MAU. Pro starts from $25/month per the official page and raises those limits to 1.75 million reads/month, 750,000 writes/month, 150 GB of storage, 2 TB/month of bandwidth, and 200,000 MAU. That said, some third-party sources cite a conflicting figure of “$15/month per organization member,” which contradicts the official page’s “from $25.” Confirm the actual billing unit on the official page before signing anything.
• GitHub stars and funding: As of May 2026, Appwrite has roughly 56,100 GitHub stars and an estimated $37 million in total funding, though the exact timing of its most recent round couldn’t be confirmed.

🪶 4) PocketBase — a single Go binary, and about as free as it gets

• v0.39.10, still pre-1.0: PocketBase is a Go-based, single-executable backend whose latest version as of July 30, 2026 is v0.39.10. It packs an embedded SQLite database, realtime subscriptions, authentication, file storage, and an admin dashboard into one binary. Even so, it’s still pre-1.0.0 — the official docs go so far as to say it’s “not recommended for mission-critical production environments” — and as of August 2026 it still hasn’t shipped a stable version tag.
• Completely free, MIT-licensed: There’s no subscription, no usage-based billing, and no paid tier at all. There isn’t even a commercial-use restriction — the license explicitly permits reselling it as a paid service to others. The only cost is your own self-hosting server, which starts at around $4/month on Hetzner, and it’s entirely free in a local development environment.
• The single-writer ceiling: Because it runs on a single SQLite file, PocketBase has a fundamental single-writer constraint. Community reports describe cases of handling more than 10,000 concurrent realtime connections even on a bare-bones $6/month VPS, but the general consensus is that its practical vertical-scaling ceiling sits somewhere around 10,000–20,000 concurrent users, and horizontal scaling across multiple nodes isn’t supported at all.
• Recent changes have been about stability, not headline features: The 0.39.x line reverted CLI panic-recovery handling (so panics still produce a non-zero exit), improved the log chart loader UI, bumped modernc.org/sqlite to v1.55.0, fixed a memory-spike bug on large file uploads, and switched the rate limiter back to a classic fixed-window approach — solid maintenance work rather than any big new feature announcement.

🔷 5) Nhost — PostgreSQL paired with Hasura GraphQL

• Postgres and Hasura — plus a shift toward Constellation: Founded in 2019, Nhost is an open-source managed BaaS that bundles managed PostgreSQL with a Hasura-powered real-time GraphQL API, Auth (including social login and magic links), CDN-backed file storage, serverless Functions, and custom container deployment — all in one stack. On June 3, 2026, though, it open-sourced Constellation, a new GraphQL engine that’s nearly a drop-in replacement for Hasura Community Edition, which means “PostgreSQL + Hasura” is no longer a fixed formula. Written in Go, Constellation is reported to use roughly 90% less memory than Hasura under equivalent traffic, and Nhost currently runs the two in parallel — Hasura handling metadata, Constellation serving GraphQL requests — as part of a gradual transition.
• Open-sourced “Nhost MCP” in March 2026: On March 31, 2026, Nhost open-sourced its “Nhost MCP” service, adding support for the Model Context Protocol. The detailed specs haven’t been confirmed. (For the record, the new JavaScript SDK actually shipped in September 2025, not as a 2026 announcement.)
• Pricing: Starter (free) covers 1 GB of database, 1 GB of storage, and 5 GB of egress for a single project (which pauses when inactive). Pro runs from $25/month (including $15 of compute credit) and includes 10 GB of database ($0.20/GB over), 50 GB of storage ($0.05/GB over), and 50 GB of egress ($0.10/GB over), with Functions covering 50 included (then $5 per additional 50) and execution covering 10 GB-hours included (then $0.18/GB-hour). Team matches Pro’s limits (10 GB database, 50 GB storage, 50 GB egress) and adds SOC2 Type II compliance, an email SLA, and support for connecting external databases, starting from $599/month. Enterprise is fully custom across every limit, with a dedicated cluster and dedicated technical account manager, but carries no published starting price — it’s contact-us only.
• Small, but stable: Total funding comes to roughly $3.4 million — far smaller than Supabase. That said, we found no signs of a shutdown, acquisition, or other red flags as of this writing, so it remains a legitimate option for small teams that want a GraphQL-first architecture.

3. Database Models and Scalability, Head to Head

[BaaS comparison as of August 2026 — qualitative assessment]
Supabase (PostgreSQL)   : ⭐⭐⭐⭐⭐ Relational queries, joins, pgvector — wins on high-concurrency writes
Firebase (Firestore)    : ⭐⭐⭐⭐☆ Proven NoSQL scalability, backed by Google infrastructure
Appwrite (MongoDB)      : ⭐⭐⭐⭐☆ Document DB + self-hosting flexibility
Nhost (Postgres+Hasura/Constellation) : ⭐⭐⭐⭐☆ Auto-generated GraphQL, full Postgres stability
PocketBase (SQLite)     : ⭐⭐⭐☆☆ Wins on low-concurrency reads, limited on concurrent-write scaling

In this BaaS comparison, the database model is ultimately what drives real-world performance differences. A qualitative judgment shows up over and over across the comparison articles we reviewed: “PocketBase wins on low-concurrency reads, but once complex joins or high-concurrency writes enter the picture, Supabase Pro generally comes out ahead.” Keep in mind this is a qualitative read drawn from secondary comparison articles, not an official benchmark — once your service starts scaling for real, it’s worth re-validating with your own load tests.

PocketBase’s single-writer architecture still performs well on modest hardware — community reports describe handling more than 10,000 concurrent realtime connections on a bare-bones $6/month VPS — though again, that’s community testing, not an official benchmark. Supabase, on the other hand, layers pgvector on top of a proven relational database (vanilla PostgreSQL), which makes it essentially the first thing you should evaluate for any project that needs AI embeddings or vector search. If you want a broader look at the differences between the database engines themselves — relational vs. NoSQL vs. in-memory — our PostgreSQL vs. MySQL vs. MongoDB vs. Redis database comparison covers the fundamental design differences between each engine.

Nhost is also signaling a shift in this picture. Its June 3, 2026 release of Constellation — an open-source GraphQL engine that’s nearly a drop-in replacement for Hasura Community Edition — reportedly cuts memory usage by around 90% versus Hasura under equivalent traffic. It hasn’t fully replaced Hasura yet (the two run in parallel for now), but the “PostgreSQL + Hasura” shorthand we’ve used for Nhost throughout this article is likely to become “PostgreSQL + Hasura/Constellation” going forward.

There’s also an interesting market-share data point circulating. Some outlets, citing the CompTIA 2026 IT Outlook, report that Supabase’s share of the BaaS market rose from 12% in 2025 to 28% in Q1 2026. We couldn’t verify the original report ourselves, so treat this figure as secondhand and take it with a grain of salt.

4. The Complete Pricing Breakdown

[The paid-tier barrier to entry — ordered by minimum monthly cost]
PocketBase (self-hosted)  : $0        (no license cost, just your server bill — Hetzner from ~$4)
Appwrite (self-hosted)    : $0        (Docker Compose, just your server infrastructure)
Firebase (Blaze)          : from $0   (metered billing kicks in past the free tier, no hard cap)
Supabase (Pro)            : $25/month (per project)
Appwrite (Cloud Pro)      : from $25/month
Nhost (Pro)               : from $25/month (includes $15 compute credit)
Supabase (Team)           : $599/month
Nhost (Team)               : from $599/month

💰 Detailed Pricing Comparison Table

There are three hidden-cost issues worth flagging. First, Firebase Blaze’s lack of a hard cap looks harmless in a startup’s early days, but if an app suddenly goes viral, the bill can balloon far beyond what you expected — setting up a budget alert isn’t optional, it’s essential. Second, Supabase Free’s “pauses after a week of inactivity” rule genuinely kicks in if you let a side project sit idle. If you want to keep something alive as a demo or portfolio piece, you’ll need to either send it a minimal amount of traffic regularly or move it to Pro. Third, the conflicting information about how Appwrite Pro’s “$25~/month” is actually billed — per organization or per member — is something you absolutely need to confirm before signing up, since that distinction can multiply your total cost several times over as your team grows.

If you’d rather approach pricing from an entirely different angle, the “platform itself is free, you only pay for the server” model that PocketBase and self-hosted Appwrite offer is a legitimate option in this BaaS comparison. If you’re already thinking about where to actually run a self-hosted backend like this, our Vercel vs. Netlify vs. Cloudflare vs. Render vs. Fly.io hosting & PaaS comparison covers platforms built specifically for Docker container deployment.

5. Final Recommendations by Use Case

🎯 1) Enterprise teams already locked into Google Cloud / Firebase

• Best choice: Firebase
• Why: Integration with Google Cloud infrastructure and a one-stop shop for Auth, Hosting, and Functions remain genuinely strong advantages. Just make sure to offset the Blaze plan’s missing hard cap with a budget alert.

🎯 2) AI startups that need relational queries and pgvector

• Best choice: Supabase
• Why: pgvector sits natively on top of vanilla PostgreSQL, so you can wire up AI embeddings and vector search without standing up separate infrastructure. Post-Series-F, its financial backing is well established too, which keeps continuity risk low.

🎯 3) Small and midsize teams that want breadth without vendor lock-in

• Best choice: Appwrite
• Why: Self-hosting is genuinely free, and you get eight bundled services — Auth, DB, Storage, Functions, Messaging, Realtime, Sites, and Imagine — in one package. Just confirm Cloud Pro’s exact billing unit before you sign up.

🎯 4) Solo developers and MVPs looking to minimize infrastructure cost

• Best choice: PocketBase
• Why: There’s zero license cost, and because it’s a single Go binary you can get a service running on a Hetzner box for about $4/month in server costs alone. Just factor in its concurrent-write scaling limits and pre-1.0 status before adopting it in production.

🎯 5) Teams that want an auto-generated GraphQL API to move fast on the front end

• Best choice: Nhost
• Why: Hasura auto-generates a real-time GraphQL API right on top of your PostgreSQL schema, so you never have to hand-write REST endpoints. Given its smaller funding base, though, it’s worth keeping an eye on its long-term roadmap.

🎯 6) Teams still weighing multiple backends without a firm decision

• Best choice: Prototype with Supabase Free or a local PocketBase instance
• Why: Both let you start without registering a card — PocketBase doesn’t even require an account — so the lowest-risk path is to validate your schema design and auth flow first, then compare migration difficulty across the remaining candidates.

6. Practical Tips and Common Mistakes

✅ Tip 1) Set up a budget alert before you even touch Firebase Blaze

The moment you cross the free tier, Blaze starts metered billing with no spending cap at all. If you don’t set up a budget alert in the Google Cloud console right from the start, it’s common to find out about a problem only after a traffic spike shows up on your bill.

✅ Tip 2) Don’t let a Supabase Free project sit idle

A project auto-pauses after more than a week without activity. If you want to keep one alive as a portfolio piece or demo, send it periodic health-check pings, or prioritize carefully within the two-active-project limit.

✅ Tip 3) Verify Appwrite Pro’s billing unit yourself before signing up

The official page’s “from $25/month” conflicts with some third-party sources citing “$15/month per organization member.” If your team is large, that gap can multiply your actual bill several times over, so check the current wording at appwrite.io/pricing yourself before you pay.

✅ Tip 4) Factor PocketBase’s pre-1.0 status into any production decision

The official docs themselves state it’s “not recommended for mission-critical production environments.” If revenue depends directly on your service, it’s safer to check the latest release notes regularly and have a migration plan ready alongside it.

✅ Tip 5) Decide on your database model before you pick a BaaS

If your domain leans heavily on relational joins and transactions — e-commerce, booking systems, and the like — vanilla PostgreSQL via Supabase or Nhost has the edge. If you’re in an early prototype where the schema keeps changing, Firebase Firestore or Appwrite’s MongoDB option gives you more flexibility. For a deeper look at how to choose a database engine in the first place, our PostgreSQL vs. MySQL vs. MongoDB vs. Redis vs. DynamoDB comparison is worth reading first.

✅ Tip 6) If you’re considering self-hosting, plan your deployment platform at the same time

Once you’ve decided to self-host Appwrite or PocketBase, choosing where to run it — which server or container platform — is the very next decision. Our Vercel vs. Netlify vs. Cloudflare vs. Render vs. Fly.io comparison covers platforms strong on Docker-based deployment, and if you need larger-scale cloud infrastructure, our AWS vs. GCP vs. Azure cloud provider comparison is the next stop.

7. Frequently Asked Questions

Q. What’s the first thing to check in a BaaS comparison?

Three things: the database model (NoSQL vs. PostgreSQL vs. SQLite), the pricing-ceiling structure (uncapped usage billing vs. subscription vs. genuinely free), and whether you’re locked into a vendor (i.e., can you self-host). Just sorting out these three axes is often enough to narrow the five candidates down to one or two you actually need to evaluate.

Q. Which is cheaper, Firebase or Supabase?

It depends on your use case. For low-traffic projects, both Firebase Spark’s free tier and Supabase Free ($0/month) are plenty. But Firebase Blaze has no hard cap, so costs get harder to predict as usage grows, whereas Supabase Pro’s $25/month (per project) is close enough to a flat rate that budgeting is much easier.

Q. Is PocketBase actually safe to use in production?

For low-to-moderate traffic (roughly 10,000–20,000 concurrent users), community reports describe it running reliably. But the official docs themselves — still pre-v1.0.0 — say it’s “not recommended for mission-critical production environments,” so approach it cautiously for any mid-to-large service where revenue is directly on the line.

Q. Appwrite and Supabase are both open source — what’s actually different?

The biggest differences are the database engine and how self-hosting is billed. Supabase runs on vanilla PostgreSQL, while Appwrite defaults to MongoDB (with MariaDB as an option). And when you self-host Appwrite, there’s no metered billing from Appwrite at all beyond your server costs, whereas Supabase Cloud’s pricing is built around the managed service itself.

Q. Why is Nhost less well-known than Supabase?

Its total funding is around $3.4 million, dwarfed by Supabase’s $1 billion-plus. That gap in marketing budget and community size seems to explain most of the awareness gap — the actual technology (PostgreSQL + Hasura GraphQL, plus the Constellation engine it open-sourced in June 2026) is still perfectly competitive for a GraphQL-first architecture.

Q. I want to know exactly how much Firestore costs — why doesn’t this article give a precise rate?

During research, the exact price per 100,000 Firestore operations varied significantly across sources, and the official firebase.google.com/pricing page doesn’t include a detailed table itself — it just links out to cloud.google.com/firestore/pricing. We couldn’t pin down a definitive figure. When calculating real costs, check that linked table directly for the current numbers.

Q. Is it okay to mix and match across these five platforms?

Absolutely. It’s common, for example, to run your main app on Supabase while spinning up an internal admin tool quickly on PocketBase. Just be aware that splitting authentication across two systems complicates session management, so if you’re mixing multiple BaaS platforms, it’s worth at least keeping Auth unified on one of them.

Q. If I choose self-hosting from this comparison, is the cost really zero?

The platform license itself is free for both PocketBase and Appwrite — that part’s accurate. But you’re still on the hook for server infrastructure costs (from around $4/month minimum on Hetzner, DigitalOcean, and similar providers) and operational overhead — backups, monitoring, security patches. The accurate way to frame it is “the license is free,” not “it’s completely free.”

8. Conclusion: The Bottom Line on BaaS in 2026

As of August 2026, the conclusion of this BaaS comparison is clear. Firebase and Supabase form the two-horse race at the top, while Appwrite, PocketBase, and Nhost each hold a solid position in their own niche. Supabase’s Series F, and the resulting $10.5 billion valuation, proves out both its financial strength and its growth trajectory, while Firebase’s move into PostgreSQL through SQL Connect is actively dismantling its own old “NoSQL-only” reputation.

In practice, deciding on your database model first is the surest starting point. If you need relational queries and pgvector, Supabase or Nhost is the rational choice; if your team already has a foot in the Google ecosystem, it’s Firebase; if you want breadth without vendor lock-in, it’s Appwrite; and if you’re a solo project trying to cut infrastructure costs to the bone, PocketBase wins out. Just don’t lose sight of what to double-check with each one before you commit — Firebase Blaze’s missing hard cap, Supabase Free’s pause clause, Appwrite Pro’s conflicting billing units, and PocketBase’s pre-1.0 status. Once you’ve settled on a backend and start thinking about deployment infrastructure, our Vercel vs. Netlify vs. Cloudflare vs. Render vs. Fly.io hosting comparison is a good next step, and if you’re evaluating larger-scale cloud architecture, our AWS vs. GCP vs. Azure cloud provider comparison picks up from there.

[Summary: the right pick for your situation]

Enterprise team locked into the Google ecosystem
  → Firebase (Blaze, budget alert mandatory)

AI startup that needs relational queries + pgvector
  → Supabase (Pro $25/month, vanilla PostgreSQL + pgvector)

Team that wants to avoid lock-in and needs broad features
  → Appwrite (self-hosting completely free, 8 bundled services)

Solo developer minimizing infrastructure cost
  → PocketBase (free license, server bill only from $4/month)

Team that wants a GraphQL-first architecture
  → Nhost (Postgres + Hasura, Pro from $25/month)

Still weighing options, no firm decision yet
  → Prototype with Supabase Free or a local PocketBase instance

Nail down your project’s database model and budget-ceiling structure first, then lay the current pricing on top of that — and the choice among the five candidates in this BaaS comparison becomes far clearer.