Simple pricing. No subscription.
Try Synth free, no sign-in required. Upgrade once, for $9.99, if you need more — that's it.
- Real SQL or plain-English AI queries
- Single-table workspaces
- CSVs up to 50,000 rows
- Save queries locally in your browser
- Sign in (free) to sync workspaces across devices
- Multi-table workspaces — up to 10 tables
- Table renaming
- Cross-table AI queries — the assistant writes joins across your tables
- 5x the daily AI usage limit
- Relationship detection — auto-suggested foreign keys
- CSVs up to 500,000 rows
Early-adopter price while Synth is in beta. Not what you expected? Email us within 7 days of purchase and we'll refund you, no questions asked.
What's included, side by side
| Feature | Free | Premium |
|---|---|---|
| Real SQL on your CSV | Yes | Yes |
| Plain-English AI assistant | Yes | Yes |
| Max CSV size | 50,000 rows | 500,000 rows |
| Tables per workspace | 1 | Up to 10 |
| Cross-table AI joins | — | Yes |
| Table renaming | — | Yes |
| Relationship detection | — | Yes |
| Daily AI usage limit | Standard | 5x standard |
| Price | $0 | $9.99 once |
Frequently asked questions
Is Synth free to use?
Yes. The free tier lets you query a single CSV file (up to 50,000 rows) with real SQL or the AI assistant, no sign-in required in Lite Mode.
Is Premium a subscription?
No. Premium is a one-time payment of $9.99. There's no recurring charge and nothing to cancel later.
What does Premium unlock?
Multi-table workspaces (up to 10 tables), table renaming, cross-table AI queries with joins, relationship detection, 5x the daily AI usage limit, and CSVs up to 500,000 rows instead of 50,000.
Is there a refund policy?
Yes. If Premium isn't what you expected, email us within 7 days of purchase and we'll refund you, no questions asked.
Do you offer a discount or student pricing?
Not currently — $9.99 is already an early-adopter price while Synth is in beta. Email us at spelillo11@gmail.com if you have a specific case.