RethinkDB vs Supabase: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for RethinkDB and Supabase side by side. This page compares data; it is not a hands-on review.
On the data: On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
RethinkDB
Real-time database for modern apps
Best for you if:
- • You want a fully free tool (Supabase requires payment)
Supabase
Open source Firebase alternative
Best for you if:
- • You want full PostgreSQL access
| At a Glance | RethinkDB | Supabase |
|---|---|---|
Starts at | Free 100% free | Free plan, paid from $25/mo, billed monthly Pro plan |
Category | Data & Databases WebSocket Tools | Data & Databases API Tools |
Rating | 4.3/5 G2 4.3 15 reviews | 4.6/5 G2 4.6 · Capterra 5.0 233 reviews |
Free plan | Yes | Yes |
Watch out for | n/a | Free projects pause after 7 days of inactivity: your app goes offline until someone visits it again. Not suitable for any production use, only for development and demos |
Choose RethinkDB or Supabase?
Choose RethinkDB if
- You want a fully free tool (Supabase requires payment)
- You want real-time database
- You want good for live updates
Choose Supabase if
- You want full PostgreSQL access
- You want generous free tier
In-Depth Analysis
RethinkDB
Real-time database for modern apps
RethinkDB's pricing is exceptionally generous, as it is entirely open-source and free.
Strengths
- Pro: Real-time database
- Pro: Good for live updates
- Pro: Open source
- Pro: Good query language
- Pro: Push architecture
Weaknesses
- Con: Less popular now
- Con: Company dissolved
- Con: Community smaller
- Con: Production concerns
- Con: Better alternatives exist
Key features
Supabase
Open source Firebase alternative
Supabase is the open-source Firebase alternative that developers actually want to use, Postgres database, authentication, storage, edge functions, and real-time subscriptions in one platform.
Watch out
Free projects pause after 7 days of inactivity: your app goes offline until someone visits it again. Not suitable for any production use, only for development and demos
Strengths
- Pro: Full PostgreSQL access
- Pro: Generous free tier
- Pro: Open-source and self-hostable
- Pro: Great developer experience
Weaknesses
- Con: Projects pause on free tier
- Con: Smaller ecosystem than Firebase
- Con: Less mature than alternatives
Key features
Plans and prices: RethinkDB vs Supabase
| Tool | Plans and prices | Source |
|---|---|---|
| RethinkDB |
| rethinkdb.comread Oct 4, 2026 |
| Supabase |
| supabase.com/pricingread Oct 5, 2026 |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on RethinkDB pricing and Supabase pricing.
Key Takeaways
RethinkDB
- Choose if you want real-time database for modern apps
Supabase
- Choose if you want open source Firebase alternative
What the data shows
On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
- User ratings rest on too few reviews to rank (4.3/5 from 15 reviews for RethinkDB, 4.6/5 from 233 reviews for Supabase; we compare ratings only above 20 reviews on both sides).
- Supabase starts at $25/mo, billed monthly; RethinkDB has no public paid plan price on file.
- Both have a free plan.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do RethinkDB and Supabase compare in 2026?
On the data below the two are close or not directly comparable, so we do not name a winner for this pair. User ratings rest on too few reviews to rank (4.3/5 from 15 reviews for RethinkDB, 4.6/5 from 233 reviews for Supabase; we compare ratings only above 20 reviews on both sides). Supabase starts at $25/mo, billed monthly; RethinkDB has no public paid plan price on file. Both have a free plan.
What are RethinkDB and Supabase used for?
RethinkDB: Real-time database for modern apps. Supabase: Open source Firebase alternative.
What does RethinkDB cost vs Supabase?
RethinkDB is free. Supabase's cheapest paid plan is Pro at $25/mo, billed monthly; it also has a free plan. Prices read on the vendors' pricing pages, latest check Oct 5, 2026.
What's the main difference between RethinkDB and Supabase?
RethinkDB's main strength: real-time database. Supabase's main strength: full PostgreSQL access.