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Berth, Vercel, Supabase and Firebase
Berth puts the database, sign in, file storage, functions, realtime and site hosting for each app in one place, for a flat monthly price with hard limits instead of a usage bill. Here is how that lines up with the services people usually combine.
| Berth | Vercel | Supabase | Firebase | |
|---|---|---|---|---|
| What it is | Backend and site hosting in one | Front-end and site hosting | Postgres backend | Google's app backend |
| Postgres database | Yes, one per app | Through Marketplace partners | Yes, one per project | Firestore is NoSQL; Postgres through Data Connect |
| Sign in for your users | Built in | Through Marketplace partners | Built in | Built in |
| File storage | Built in | Blob storage | Built in | Built in |
| Functions | Built in (Deno) | Built in | Built in (Deno) | Built in |
| Realtime | Built in | Not built in | Built in | Built in |
| Static site hosting | Built in | Built in | Not offered | Built in |
| Free plan | $0: 5 apps and 3 sites, never paused for being idle | $0 Hobby, for personal, non-commercial use | $0: 2 active projects, paused after 1 week of inactivity | $0 Spark, with usage limits |
| Paid plan | $12 a month for the first 100 Pro accounts, then $19; Agency $49 for 30 client apps | $20 a month, plus $20 a month per extra seat | From $25 a month, with $10 of compute credits | Blaze, pay as you go |
| Going past your plan | Hard caps: Berth refuses the request instead of billing you more | Usage beyond what's included is billed; $200 default on-demand budget, with an optional hard pause | Spend cap on by default on Pro; turn it off to pay for extra usage | Billed as you go; budget alerts do not pause services |
Checked against each company's own pricing page on September 27, 2026. Plans and prices change, so follow the sources for the current terms.
Where Berth fits
- One service instead of two. A typical setup pairs front-end hosting with a separate backend. On Berth the database, sign in, storage, functions and site share one account, one CLI and one set of keys.
- A bill that cannot surprise you. Every limit is a hard cap. At a limit Berth refuses the request; it never adds usage charges.
- Free apps stay on. Free apps are never paused for being idle.
- We can build it for you. Need the site or app as well as the hosting? We design, build and launch it on Berth. Tell us what you need, and moving from Supabase has its own guide.
Where the others fit better
- Global scale. Vercel serves from a worldwide edge network, and Supabase and Firebase let you pick regions. Berth runs in the United States.
- Guarantees. Berth offers an uptime SLA only in Scale contracts, and publishes its measured uptime. Larger providers sell enterprise plans with broader SLAs and compliance programs.
- Ecosystem. Vercel, Supabase and Firebase have years of integrations, templates and community answers behind them.
If your app needs those today, they are the better choice. If you want one place for a new app's whole backend and a price you can predict, start free on Berth.
More detail: Supabase alternative, Firebase alternative, Vercel alternative.
Sources
Vercel, Supabase and Firebase are trademarks of their owners. Berth is not affiliated with or endorsed by them. Spot something out of date? Email hello@atberth.com and we will fix it.