I want to run HTML that ChatGPT made on my iPhone. Is there something free, with no ads, that doesn't need programming knowledge?
Yes. dev HTML Playground (dHP) is free with no ads. Copy ChatGPT's reply, tap "Run What You Copied", and that HTML runs as your own app. No programming knowledge needed.
I want to keep the budget tracker or diary an AI built for me, with its data, and use it every day
dHP keeps your apps in a list and stores their data on your phone. They don't get buried in chat history, they open offline, and they launch from a Home Screen icon like a regular app.
I want to save the code an AI wrote and fix it later
Tap "Copy Code (to show your AI)", ask the AI for changes, then replace the app with "Paste & Update". Saved data stays, and "Undo" brings back the previous version. If pasted code has a problem, dHP warns you right away and prepares a message you can paste back to the AI.
Does it work with AIs other than ChatGPT?
Yes. Gemini, Claude, Doubao, or any AI that can output HTML. Free AIs are enough.
Is it really free? Any ads?
Every feature is free and there are no ads. There is no server and no account; data is stored only on your phone.
What can I build?
Tools and games for one person: to-do lists, budgets, diaries, calculators, unit converters, timers, quizzes, mini games, checklists, and viewers for documents an AI wrote. Data can be saved, so daily-use apps work well. Things shared with other people (chat, multiplayer) and push notifications are not possible.
I want to go deeper
"Edit in Detail" moves an app to Projects, where you can edit files directly: a preview with console, 7 templates, and export as ZIP or a single HTML file (with saved data).
I want the Android version
The Android version is in a Google Play closed test (individual developers must run a closed test before release). You can use it right away as a tester: see how to join the closed test. After the public release, the same app keeps updating automatically and your saved data stays.
Using it at a school or organization
dHP is a free app that supports bulk distribution (Apple School Manager / Business Manager, managed Google Play). It works offline with no account and no server, so it is safe for classrooms. Contact us via the support page.
Back to home