Base44 vs Bolt: which builds a better booking app?
Verdict: Bolt and Base44 are effectively tied (94.75 vs 93.5); the gap is within one reviewer's design judgment.
Test dates: Base44: Oct 14–15, 2026. Bolt.new: Oct 21, 2026. Both on free plans (the Bolt account had a 1M-token survey bonus).
Method: same app, same checklist
Both tools got the identical SlotKeeper prompt for a booking and waitlist app for a demo yoga studio (Maple Yoga Studio). Each got one prompt, at most 5 fix prompts, no hand-editing of code, a 90-minute cap, and the same 10-item checklist and 100-point rubric. Design is scored by one reviewer for now. Full method
Results
| Base44 | Bolt.new | |
|---|---|---|
| Overall | 93.5/100 | 94.75/100 |
| Works end to end | 30/30 (10/10 pass) | 30/30 (10/10 pass) |
| Time to first working version | 15/15 (8–9 min) | 15/15 (~7 min) |
| Fix prompts | 0 | 0 |
| Bugs | 11/15 (4 minor) | 11/15 (1 major, 2 minor) |
| Design / UX | 12.5/15 (1 reviewer) | 13.75/15 (1 reviewer) |
| Deploy ease | 15/15 (in-tool, 4 clicks) | 15/15 (in-tool Publish) |
| Cost | 10/10 (free) | 10/10 (free, $0; 1M-token survey bonus) |
| Non-design subtotal | 81/85 | 81/85 |
| Stack | Built-in DB, backend functions, auth with email codes | Bolt Database (Postgres, RLS), hash routing |
| Owner sign-up | Email verification code | Open, no email verification |
The tradeoffs in one line each: - Base44: verified owner sign-up and no major bugs, but 4 minor bugs, including a badge that covers content on mobile. - Bolt.new: faster with a higher design score, but slot times shift with the viewer's timezone (major), plain /admin doesn't redirect, and owner sign-up is open.
Full reviews: Base44 review · Bolt review
FAQ
Is Bolt or Base44 better for a booking app? Bolt and Base44 are effectively tied (94.75 vs 93.5); the gap is within one reviewer's design judgment. Both scored 81 of the 85 non-design points and passed all 10 checklist items. Bolt was faster but had a major timezone bug; Base44 had more minor bugs but verifies owner sign-up by email.
Which is faster, Bolt or Base44? Bolt.new finished a working version in about 7 minutes; Base44 took 8–9 minutes. Both needed zero fix prompts, and both scored the full 15 points for time.
Which is cheaper, Bolt or Base44? Both built and deployed our booking app on their free plans, though the Bolt account had a 1M-token bonus for completing a survey. Neither showed exact usage: Base44 doesn't show credit usage, and Bolt showed no token counter.
Which has fewer bugs, Bolt or Base44? Bolt.new had 3 bugs: 1 major (slot times shift with the viewer's timezone) and 2 minor. Base44 had 4 minor bugs. Neither had critical bugs. Under our rubric that gives Bolt 11/15 and Base44 11/15 for bugs.
Do I need to code to use Bolt or Base44? Not in our tests. Our method bans hand-editing code, and both tools produced working booking apps from one prompt with zero fix prompts.