Checked 2026-08-30 — every price linked to its source

Top 5 Bubble alternatives
free and paid, ranked for 2026

The best Bubble alternative for most founders is Base44, built for non-technical founders and operators who want an internal tool or a simple product built without touching a code editor. Below, 5 real alternatives ranked on what $0 gets you, what the cheapest paid tier costs and what each one actually delivers. Bubble itself is free to try — 50,000 workload units per month, but you cannot publish on the free plan — starts at $29/mo (annual), so switching is only worth it if one of these does the job you actually need.

Bubble alternatives compared on free tier, entry price and best use
ToolFree tierEntry priceBest for
Base4425 message credits and 100 integration credits per month.$16/mo (annual)Non-technical founders and operators who want an internal tool or a simple product built without touching a code editor.
Lovable5 build credits granted daily, capped at 30 per month, plus 20 monthly Cloud credits.$25/moFounders who already know what to build and want the fastest, prettiest path to a working web app.
ReplitStarter: daily agent credits, one live published project, built-in database access.$20/mo ($17 annual)Technical founders who want an agent and a real development environment in the same place, and who will read the code it writes.
Bolt.new1M tokens per month with a 300K daily limit — the most generous free allowance among the AI builders.$25/moPrototypers who want to try five app ideas this week without paying, and who are comfortable steering an AI through the rough edges.
kitty.build100 Treats on signup, no card — enough for one complete nine-board validation with citations and a GO / PIVOT / NO-GO verdict.$17/moSolo founders and small teams who want the idea checked honestly first, and the surviving one actually built and operated without hiring.

Prices and claims about Bubble and the alternatives listed were checked against the sources below on 2026-08-30: Bubble — pricing page · No Code MBA — Bubble pricing 2026 · Goodspeed — Bubble plans, WU costs & free tier limits · Base44 — pricing page · Lovable — pricing page · No Code MBA — Lovable pricing 2026 · Layer3 Labs — Lovable pricing, plans & real cost · Replit — pricing page. Pricing changes: the number on their own site wins over the number on ours. Product names are trademarks of their owners; these are independent comparisons.

Why founders leave Bubble

  • Workload-unit pricing is the least predictable model in this comparison — overage starts at $0.30 per 1,000 units the moment you exceed the tier
  • Steep learning curve: this is a professional tool, not a chat box
  • No code export, so the app cannot leave the platform
  • You cannot publish on the free plan, so evaluating it properly costs $29/mo

None of that makes Bubble a bad product — Bubble's free plan gives 50,000 workload units a month but cannot publish; Starter is $29/mo annual for 175,000 units, with overage at $0.30 per 1,000. Read our full kitty.build vs Bubble comparison for the head-to-head.

1. Base44— free tier available, from $16/mo (annual)

A Wix-owned AI app builder for non-developers: describe what you need and it constructs a working app with auth, database and hosting attached.

Base44 is the friendliest and cheapest way for a non-technical founder to get a working app, and Wix's ownership removes the will-this-company-exist-next-year risk that hangs over smaller builders. The credit ceilings are tighter than the prices suggest, and like every builder it has no opinion about whether the app should exist. kitty.build's bet is that the opinion is the expensive part: a free nine-board validation with citations comes first, and only the surviving idea gets built and operated.

Best at:
The cheapest genuine paid entry point among the AI app builders at $16/mo annual
Watch out for:
25 free message credits a month is a thin trial — you will hit it in an afternoon
Best for:
Non-technical founders and operators who want an internal tool or a simple product built without touching a code editor.
Pricing:
Free $0 · Starter $16/mo annual · Builder $40/mo annual · Pro $80/mo annual · Elite $160/mo annual

Read the full kitty.build vs Base44 comparison →

2. Lovable— free tier available, from $25/mo

An AI software engineer you chat with: describe a web app and it writes, previews and deploys it, with Supabase and GitHub wired in.

Lovable is the best pure chat-to-app builder for founders, and if you have already validated your idea it is a better use of $25 than almost anything else. Its blind spot is structural rather than technical: it will build the wrong product as beautifully as the right one, because nothing in the product asks whether anyone wants it. kitty.build answers that question first — nine boards, live research, a cited verdict that is allowed to say no — and then builds and operates the survivor. If you are certain about the idea, use Lovable. If you are certain because you like the idea, validate it first.

Best at:
The fastest path from a sentence to a working, good-looking web app in this whole set
Watch out for:
Credits burn fastest when you are debugging, which is exactly when you can least afford it
Best for:
Founders who already know what to build and want the fastest, prettiest path to a working web app.
Pricing:
Free $0 · Pro $25/mo · Business $50/mo · Enterprise Custom

Read the full kitty.build vs Lovable comparison →

3. Replit— free tier available, from $20/mo ($17 annual)

A browser IDE with an AI Agent that builds, runs, hosts and databases your app in one place — the most developer-complete platform in this set.

Replit is the most complete build platform in this comparison and the only one where you can take the wheel from the agent mid-build without exporting anything. That completeness is also its shape: it is a development environment, and it assumes you have already decided what to develop. kitty.build assumes the opposite — that the expensive mistake is building the wrong thing — so it validates with nine researching boards first, then builds, then runs the venture. Technical founders who already know their idea is good will get more out of Replit.

Best at:
The most complete platform here: you never leave for a database, a host or a terminal
Watch out for:
Model credits are consumed on top of the subscription, so the real monthly cost is variable
Best for:
Technical founders who want an agent and a real development environment in the same place, and who will read the code it writes.
Pricing:
Starter $0 · Core $20/mo ($17 annual) · Pro $100/mo ($95 annual) · Enterprise Custom

Read the full kitty.build vs Replit comparison →

4. Bolt.new— free tier available, from $25/mo

StackBlitz's in-browser AI app builder: prompt it and a full-stack app is written, run and deployed without leaving the tab.

Bolt.new is the best free way to find out whether an app idea is buildable, and the token rollover on Pro is the fairest metering in the builder category. What it does not do — like every builder here — is tell you whether the thing is worth building; it will happily burn 10M tokens on a product with no market. Use Bolt to answer "can this be built and how hard is it". Use kitty.build to answer "should it be", and then to keep the answer alive after launch with a site on your domain, code in your repo and daily operating cycles.

Best at:
The most generous free tier of any AI app builder here — 1M tokens/month without paying
Watch out for:
Tokens are consumed by failed attempts, so error loops are expensive
Best for:
Prototypers who want to try five app ideas this week without paying, and who are comfortable steering an AI through the rough edges.
Pricing:
Free $0 · Pro $25/mo · Teams $30/member/mo · Enterprise Custom

Read the full kitty.build vs Bolt.new comparison →

5. kitty.build— free tier available, from $17/mo

An AI co-founder that validates an idea with nine researching boards, then builds, ships and runs the venture that survives.

kitty.build is the only tool in this set that both refuses to build a bad idea and builds the good one. Nine boards research the live web, cite what they find and return a GO / PIVOT / NO-GO verdict for free; if the verdict is GO, the same product ships the site on your domain, writes the code into your GitHub repo and runs daily cycles where a task only counts as done with evidence attached. The trade is that it is a subscription and it is opinionated. If you want a single document, or you want to art-direct every pixel yourself, something else on this list fits you better.

Best at:
The first verdict is free and it is allowed to say no
Watch out for:
It is a subscription — if you only want one document and then silence, a one-time report is cheaper
Best for:
Solo founders and small teams who want the idea checked honestly first, and the surviving one actually built and operated without hiring.
Pricing:
Free $0 · Spark $17/mo · Portfolio $66/mo · Studio $166/mo

Frequently asked

What is the best Bubble alternative?
For AI-first building: Lovable and Bolt.new at $25/mo, Base44 at $16/mo annual, Replit if you want an IDE. For simpler apps, Softr or Glide. For deciding whether the app is worth building at all, kitty.build validates free with nine researching boards.
Is there a free Bubble alternative?
Yes — all 5 of these alternatives have a free tier. Base44: 25 message credits and 100 integration credits per month. Lovable: 5 build credits granted daily, capped at 30 per month, plus 20 monthly Cloud credits. Replit: starter: daily agent credits, one live published project, built-in database access. Bolt.new: 1M tokens per month with a 300K daily limit — the most generous free allowance among the AI builders. kitty.build: 100 Treats on signup, no card — enough for one complete nine-board validation with citations and a GO / PIVOT / NO-GO verdict. Run two or three before paying anyone, us included.
How much do Bubble alternatives cost?
Base44 from $16/mo (annual), Lovable from $25/mo, Replit from $20/mo ($17 annual), Bolt.new from $25/mo, kitty.build from $17/mo. Bubble itself starts at $29/mo (annual). Every price was checked against the vendor's own page on 2026-08-30; where their site disagrees with ours, theirs is correct.
Why do founders switch away from Bubble?
The recurring reasons: workload-unit pricing is the least predictable model in this comparison — overage starts at $0.30 per 1,000 units the moment you exceed the tier; steep learning curve: this is a professional tool, not a chat box; no code export, so the app cannot leave the platform; you cannot publish on the free plan, so evaluating it properly costs $29/mo. None of that makes it a bad product — Bubble's free plan gives 50,000 workload units a month but cannot publish; Starter is $29/mo annual for 175,000 units, with overage at $0.30 per 1,000.
Is Bubble still worth it?
For the right job, yes. For a complex, logic-heavy application that has to work for years and might one day be handed to a contractor, Bubble is the safer platform. It has a decade of production use, a deep plugin ecosystem and a real hiring market. kitty.build's generated sites and repo commits are not a substitute for a mature visual app platform, and pretending otherwise would be dishonest.

Keep comparing

Or start at the full comparison index.

Switching from Bubble?

Run one honest verdict before you commit to anything else. Nine boards, live research, every claim cited, GO / PIVOT / NO-GO — free, no card. If the answer is NO-GO you saved months and paid nobody.

Start free — no card

No revenue share, ever · Failed tasks are free · Your repo, your domain, your data