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See how reviewed tools stack up for your needs. Every value comes from a published JAVIS review.
| Feature / criteria |  Firebase StudioAI App Builders |  v0AI App Builders |
|---|---|---|
| JAVIS Score | — | 85 / 100 |
| Price | — | $30/user/mo |
| Pricing model | Discontinued | Freemium |
| Free tier | — | ✓ Yes |
| Open source | ✕ No | ✕ No |
| Our verdict | Closed to new users since Jun 22, 2026 and shutting down Mar 22, 2027: existing users should migrate to Google AI Studio or Antigravity now. | v0 didn't just add features. It changed what kind of tool it's trying to be. |
| Last checked | Oct 4, 2026 | Oct 4, 2026 |