# When your startup outgrows a free tier, the next line on the invoice can decide the whole stack
Both Aiven and Supabase market themselves as managed back‑ends you can spin up with a click, but their pricing philosophies diverge sharply. Aiven’s list reads like a classic SaaS ladder—Free, Developer, Hobbyist, Startup, Business, Premium—each tier quoted as a flat monthly fee in dollars. Supabase, by contrast, mixes tiered plans (Free, Pro, Team) with a la‑carte add‑ons for compute, point‑in‑time recovery, database size, branching, egress and pipelines. The result is a straightforward, predictable cost curve from Aiven versus a more modular, potentially granular spend from Supabase.
How the price tables stack up
| Vendor | Plan | Price | Notable inclusion |
|---|---|---|---|
| Aiven | Free | $0/month | basic service, no commitment |
| Aiven | Developer | $5/month | entry‑level managed instance |
| Aiven | Hobbyist | $12/month | starter resources |
| Aiven | Startup | $75/month | small‑business workload |
| Aiven | Business | $180/month | larger production |
| Aiven | Premium | $270/month | top‑tier performance |
| Supabase | Free | $0/month | perfect for passion projects & simple websites |
| Supabase | Pro | $25/month | production applications with scaling power |
| Supabase | Team | $599/month | SSO, backup control, industry certifications |
| Supabase | Scale compute up to | $10/month | additional compute capacity |
| Supabase | Point in Time Recovery | $100/month | rollback to any second |
| Supabase | Custom (Database size) | $0.12 | per‑GB beyond 500 MB included |
| Supabase | Not included (Branching) | $0.01 | per‑branch operation |
| Supabase | Custom (Egress) | $0.09 | per‑GB after 5 GB included |
| Supabase | Not included (Pipelines) | $0.05 | per‑pipeline run |
Aiven’s pricing is simple: pick a tier and you know the exact monthly bill. Supabase’s base plans are cheap—Free and Pro together cost $25/month—but once you add compute, backups, extra storage or egress, the line items multiply. A developer who needs a modest amount of extra compute will see a $10/month bump, while a data‑heavy app that stores several gigabytes and runs frequent pipelines could easily add tens of dollars on top of the $25 or $599 base.
Who each service is built for
If you value predictability above all, Aiven’s flat‑rate tiers make budgeting painless. The Free tier gives you a taste, and the Developer and Hobbyist levels let small teams experiment without worrying about hidden fees. The Startup, Business and Premium tiers scale in lockstep with the price, so you can upgrade once you outgrow the previous level and know exactly what the next bill will look like.
Supabase shines for teams that want to start free or at $25/month and then cherry‑pick add‑ons only when the need arises. The modular pricing is attractive for projects that anticipate irregular spikes in compute or storage but don’t want to pay for a higher tier they’ll never fully use. However, the a la carte model demands careful monitoring; forgetting a $0.09/GB egress charge can quietly inflate the monthly total.
In practice, a bootstrapped startup that expects steady growth and prefers a single line item will likely gravitate toward Aiven’s Startup tier at $75/month. A product‑focused team that wants to stay on a free or low‑cost base while scaling specific resources on demand may find Supabase’s Pro plan plus selective add‑ons more economical, as long as they keep usage tight.
Ultimately, the choice hinges on whether you prefer the simplicity of Aiven’s tiered pricing or the flexibility—and potential complexity—of Supabase’s modular charges. For predictable budgeting, Aiven wins; for granular control over every resource, Supabase offers the tools to fine‑tune spend.
Pricing verified on 2026-09-24.