No-code apps and databases decision
Thunkable
A capable developer can build a narrow self-hosted visual app-builder (editor + basic Android export + AI prompts) over many weeks, but reproducing Thunkable’s full hosted build farm, polished editor UX, scale, token economy, and multi-platform publishing is impractical for a single maintainer—keep paying for those platform conveniences.
Visit website↗Open-source builds that already do this
Every project below is open source and already does this job today. Fork one, self-host it, or take the parts you need - the build prompt further down assumes an empty file, and this is the shortcut past that. Licences differ; check the one on each card before you ship. All Thunkable alternatives, with the arithmetic →
What a replacement has to do
- Allow a user to visually assemble screens, wire simple data/logic, generate simple assets with an AI prompt, and produce an installable Android APK and iOS build artifact (or web export).
What it still won’t have
- Proprietary, polished in-browser visual editor UX and many built-in integrations
- Hosted build farm and one-click publishing to App Store / Play Store
- Scale, reliability, and polished support channels
- Token-bundled generative AI credits and platform-managed token model
What remains hard
- Product polish and ongoing maintenance
First-year cost
Keep paying
Paying is—cheaper in year one.
On cash alone, building overtakes the subscription at 4 seats.
Money you would actually spend
Time you would spend
—
What you would spend
What we assumed
The verdict above measures whether you could build it. This one is only about money.
Runnable build prompt
Build a minimal self-hosted no-code mobile app builder using React for the web UI, a Postgres DB, Node.js API, and GitHub Actions for builds. Core features in scope: (1) drag-and-drop screen editor that stores a JSON app spec in Postgres, (2) runtime renderer that turns the JSON spec into a web bundle and into an Android APK via an automated build job, (3) user auth and per-project public/private flags, (4) an AI integration adapter to call a hosted LLM/image API and attach generated assets to a project, (5) a publish/export page that returns a signed APK or a downloadable web bundle. Out of scope: iOS cloud signing service (require developer to supply signing credentials), multi-tenant scaling, marketplace/gallery, and built-in billing. Deliverables must include error handling, input validation, CI build scripts, and unit/integration tests for the API and editor save/load flows.
How we checked
How the score was reached
- Partly verdict base52
- An open-source build was found+5
- 5 cited sources+3
- Price verified on pricing page+3
- 3/3 assessment runs agreed+4
- Evidence score67
The base comes from the verdict. Everything under it is a check that either happened or did not, and each one is a fact frozen in this record rather than a judgement made at render time - so the same evidence always produces the same number.
How scoring works →Cited sources · 5
Every page the run actually retrieved.
- official productThunkable homepage
- official pricingThunkable pricing
- official productThunkable features
- open sourcenocobase/nocobase
- open sourceBudibase/budibase
Integrity checks
What held up, and what did not.
