Credit burn and fix-it loops: Leanfinit vs Lovable vs Bolt.new
Credits gone while the AI fixes its own bugs? We compared Leanfinit, Lovable and Bolt.new. Leanfinit is free during the beta – no top-ups.
Disclosure: OwnlyReal and Leanfinit share founders.
If fix-it loops keep eating your balance, Leanfinit is the way out: it is completely free during the beta, so a stubborn bug costs you time, not money. On Lovable and Bolt.new, every attempt the AI makes to repair its own mistake is paid from your credit or token balance.
Leanfinit wins for anyone tired of paying for the AI's mistakes – free during the beta, no paid plans, no credit card, nothing to top up. Lovable and Bolt.new users both report balances draining during debugging, and the same pattern shows up at Replit.
01How each builder meters your work
| Tool | What you spend | Free allowance | Next step up (as of October 2026) | Rollover |
|---|---|---|---|---|
| Leanfinit | Nothing – no paid plans during the beta | Free during the beta, no credit card | None needed | Not applicable |
| Lovable | Credits | 5 daily credits, capped at 30 a month | Pro $25/mo; top-ups $15 per 50 credits | Monthly credits roll over while subscribed; daily credits don't |
| Bolt.new | Tokens | 300K tokens a day, 1M a month | Pro $25/mo, from 10M tokens a month | None on Free; rollover on Pro |
| Replit | Effort-based usage credits | Daily Agent credits up to a monthly cap | Core $20/mo, includes $20 of credits | Not stated |
| v0 | Dollar-based credits | 7 messages a day | Plus $30/user/mo | Monthly credits expire after 65 days |
| Base44 | Message credits | 25 a month | Starter $16/mo, 100 credits | Not stated |
| Cursor | Dollar-based allowance | Hobby: limited Agent requests | Pro $20/mo | Not stated |
Sources: Lovable docs, Lovable credits, Bolt.new pricing, Bolt.new FAQ, Replit pricing, Replit Starter docs, v0 pricing, v0 docs, Base44, Cursor.
02How a fix-it loop turns into a bill
The loop goes like this: the AI writes code, the code breaks, you ask for a fix, the fix breaks something else. On a metered builder, every turn of that loop is billed to you – including the turns spent undoing the AI's own errors.
The worst part, as Lovable's G2 reviewers put it, is that there is no cost estimate up front. You see the cost only after the balance is gone.
03Lovable: credits drain while bugs come back
Lovable is a market leader, with a $500M annualized run-rate in June 2026 (TechCrunch). Its pricing makes every debugging round visible on your balance: 5 daily credits on Free, and on Pro extra credits cost $15 per 50 – $0.30 a credit – as of October 2026 (Lovable credits).
G2 reviewers say credits drain during debugging loops with no up-front cost estimate, previously fixed bugs return, and context degrades on larger projects (G2).
Trustpilot rates Lovable 4.2/5 from 1,767 reviews, and its negative reviews cite fast credit use and credit limits blocking larger projects (Trustpilot). Daily credits do not roll over, so a bad day's allowance is simply gone.
04Bolt.new: tokens spent rewriting whole files
Bolt.new meters tokens: 300K a day and 1M a month on Free, and Pro at $25 a month starts at 10M tokens, as of October 2026 (Bolt.new pricing). On Free, unused usage does not roll over (Bolt.new FAQ).
on G2, the token system is the top complaint – reviewers say Bolt rewrites whole files to fix small bugs, and some estimate that up to half of their tokens go to fixing AI errors (G2).
Bolt.new's Trustpilot score is 1.6/5 from 203 reviews, with reviewers describing tokens draining while the AI fixes its own mistakes, plus error loops (Trustpilot).
05It's not just them: the meter at Replit
The pattern isn't unique to these two. After Replit moved to effort-based pricing, The Register reported one user spending $1,000 in a week against a usual $180–200 a month, and another spending $70 in one night (The Register).
Replit itself says simple changes usually cost under $0.25 but complex tasks "may cost more" (Replit blog). "May cost more" is exactly what a fix-it loop turns into.
06Leanfinit: a loop costs time, not money
Leanfinit is completely free during the beta – no paid plans, no credit card, no watermark – so a debugging session can't turn into a bill. If something isn't right, you describe the change and the app updates.
It also removes a whole class of things that can break: there are no servers, databases or hosting to set up or pay for. You describe the app, get a working app in seconds, and publish to the web with one Publish button; code export is available, and apps are built with Flutter.
Leanfinit's explainer on what vibe coding means for non-programmers makes the same point from another angle: describing an app is easy, and running it is where people get stuck.
When something looks wrong, describe the symptom and the result you expected in one message – "the total shows 0, it should add up this week's orders". Clear requests mean fewer rounds.
07Leanfinit vs Lovable vs Bolt.new: what a loop costs
| Leanfinit | Lovable | Bolt.new | |
|---|---|---|---|
| Cost of one more fix attempt | $0 during the beta | Credits at $0.30 each on Pro top-ups | Tokens from your daily or monthly allowance |
| Monthly plan when the free tier runs out | None – no paid plans | $25/mo Pro | $25/mo Pro |
| Branding on free apps | No watermark | Lovable badge | Bolt branding |
Sources: Lovable docs, Lovable credits, Bolt.new pricing. Prices as of October 2026.
The difference isn't how often the AI makes mistakes – it's who pays for them. Leanfinit's page on a free app maker with no watermark and no monthly fee spells out what "free" means, and our Lovable pricing and Bolt.new pricing comparisons go deeper.
on metered builders the AI's errors are billed to you; on Leanfinit during the beta, they aren't billed at all.
08Why we'd pick Leanfinit if your credits keep running out
If you've ever watched a balance drop while the AI argued with its own bug, Leanfinit is the calmer place to build. It is free during the beta, there's nothing to top up, and there's no server stack behind your app to debug.
For the full picture across tools, see our real cost of one app breakdown.
For people burned by credit and token loops, Leanfinit is our pick – same plain-words building, without the bill.
FAQ
Why do AI app builders burn through credits so fast?
Fixes are billed like any other request. G2 reviewers of Bolt.new estimate up to half of their tokens go to fixing AI errors (G2).
Do unused Lovable credits roll over?
Monthly credits roll over while you're subscribed; daily credits don't (Lovable credits).
How many free tokens does Bolt.new give?
300K tokens a day and 1M a month on Free, as of October 2026 (Bolt.new pricing).
Does Leanfinit charge for fixes?
No. Leanfinit is completely free during the beta – no paid plans and no credit card – so describing a fix costs nothing.
