AI app builder alternatives (2026, tested)
We tested Lovable, Bolt, Base44 and v0 with the same prompt on their free plans (16 Oct 2026, one run each). Lovable, Bolt and Base44 scored 100/100 and v0 scored 95/100; all four built a working multi-user app with zero fix prompts and no data leak between users. Pick the tool you're leaving to see how the other three compared.
Pick the tool you're leaving
Lovable alternatives
How the other three compared on the same prompt. Lovable itself: 100/100, under 4 min.
Bolt.new alternatives
How the other three compared on the same prompt. Bolt itself: 100/100, about 6 min.
Base44 alternatives
How the other three compared on the same prompt. Base44 itself: 100/100, about 3.5 min.
v0 alternatives
How the other three compared on the same prompt. v0 itself: 95/100, about 15 min.
All four at a glance (Observed)
| Tool | v1 score | Prompt → live | Fix prompts | Setup steps | Free allowance used (Inferred) | Trains AI by default? (Reported, 17 Oct 2026) |
|---|---|---|---|---|---|---|
| Lovable | 100/100 · tier pending v2 | under 4 min | 0 | 0 | 7% of 30 credits a month | On for Free and Pro; free opt-out in account settings |
| Bolt | 100/100 · tier pending v2 | about 6 min | 0 | 0 | 10% of 1M tokens a month | On (off by default in EU/UK/CH); free opt-out on every plan |
| Base44 | 100/100 · tier pending v2 | about 3.5 min | 0 | 0 | 4% of 25 credits a month | On for every plan except Enterprise; no opt-out setting |
| v0 | 95/100 · tier pending v2 | about 15 min | 0 | 6 | 76% of a one-time $5 | On; opt-out listed only on Business ($100/user/month) and Enterprise |
Details: all four side by side with screenshots · cost per working app · pricing and free plan limits · feature comparison · AI training opt-outs · best for non-coders.
Not tested yet
Other app builders on our lists. We have not tested any of these, so we make no claim about their quality, speed, cost or bugs. Being listed is not a recommendation or a rank.
- Replit Agent: not tested. Candidate in our app-builder tier pool.
- Google Play: install your own AI Studio-built Android apps: not tested. On our release radar, 13 Oct 2026.
- Looker Data Apps (preview): not tested. On our release radar, 12 Oct 2026.
- Myndlab: not tested. On our release radar: "Myndlab global launch", 7 Oct 2026.
- Coderblock: not tested. On our release radar: "Coderblock launches on Product Hunt", 7 Oct 2026.
- Bubble: not tested. On our release radar: "Bubble Agent 2 + Bubble MCP", 6 Oct 2026.
Want one tested next? Vote for the next test.
Already built something?
Scan my app (free beta) runs a real browser over up to 5 pages of your app: phone layout, safe buttons, junk input, console and network errors. You prove you own the app first, write requests are blocked, and you get a private report with screenshots. It's not a security audit, and it never affects any ranking.
Scan my app, free →Evidence labels: scores, times, setup steps and fix prompts are Observed; training defaults are Reported by vendors; share-of-allowance figures are Inferred. What the labels mean. Disclosures: no tool paid us; commission size never changes a score or tier.
FAQ
What are the best alternatives to Lovable, Bolt, Base44 and v0?
We tested Lovable, Bolt, Base44 and v0 with the same prompt on their free plans (16 Oct 2026, one run each). Lovable, Bolt and Base44 scored 100/100 and v0 scored 95/100; all four built a working multi-user app with zero fix prompts and no data leak between users. Pick the tool you're leaving to see how the other three compared.
Which AI app builder was fastest in your test?
Base44 (about 3.5 minutes from prompt to a live app), then Lovable (under 4 minutes), Bolt (about 6 minutes) and v0 (about 15 minutes, with six manual setup steps and a manual Publish). Observed, one run per tool.
Why are there no official tiers yet?
v1 was one run per tool on a fairly simple app, and it could not separate the tools (95 to 100 each). Official tiers wait for the harder v2 test, which runs 3 times per tool. No v2 scores are published yet.
Have you tested Replit or other app builders?
Not yet. Replit Agent and the builders on our release radar are listed on this page as not tested, with no claims about their quality.