Sendaro vs Supabase
Sendaro and Supabase are both listed in Developer Tools, and both are tagged Backend.
| Sendaro | Supabase | |
|---|---|---|
| What it does | Transactional email API for indie developers and small teams | Postgres with auth, storage and realtime attached |
| Pricing | Free plan | Free plan |
| Categories | Developer Tools | Developer Tools |
| Tags | API, Email, SDK, JavaScript, Backend | Databases, Backend, Authentication, Open Source |
| Platforms | API, SDK | Not listed |
| Score | 67%3 votes · not ranked yet | 60%15 votes |
| Votes | 2 launch, 1 pass | 9 launch, 6 pass |
| Alternative to | Resend | Firebase |
| Website | sendaro.email | supabase.com |
| Domain Rating | 0 | 92 |
| Founder | Not listed | Not listed |
| Listed | Nov 10, 2026 | Sep 9, 2025 |
Which should you pick?
- Both are listed as free with paid plans, so price alone will not settle it.
- Sendaro does not have enough votes yet to compare.
- Only Sendaro is tagged API, Email and SDK.
- Only Supabase is tagged Databases, Authentication and Open Source.
Positioning is from each listing, not an endorsement.
About Sendaro
Sendaro is a transactional email API for sending password resets, receipts, sign-in links and notifications from your own domain. You verify a domain by publishing DKIM, SPF and DMARC DNS records, create an API key, and send with one REST request or an SDK call. A message ID is returned right away.
About Supabase
Supabase gives you a Postgres database plus the pieces most apps need around it: authentication, row-level security, file storage, edge functions and realtime subscriptions.
The pitch is that you get a managed backend without leaving SQL behind, and can self-host the same stack if you outgrow the hosted version.
Questions
Is Sendaro or Supabase free?
You can start on both without paying: Sendaro is free with paid plans and Supabase is free with paid plans. Pricing is taken from each product's own site when it was listed and may have changed since.
Which do SwipeToLaunch voters prefer, Sendaro or Supabase?
There are not enough votes to say yet. Sendaro has 3 votes and Supabase has 15 votes; a product is ranked once it has 5.