● Start
Costs.
What you pay for, and what you do not.
The AI runs on your users' phones, so there is no per-message bill. The item price does not include these services.
01Not included in the price
| Service | Needed? | Who pays |
|---|---|---|
| Google Play developer account | To publish on Android | You (Google's one-time fee) |
| Apple Developer Program | To publish on iOS | You (Apple's yearly fee) |
| A Node 22 host for the console | Optional | You (any small VPS or container host) |
| Google AdMob | Optional (ads are off by default) | Free account; AdMob pays you |
| Hugging Face model downloads | Yes, once per user and model | Free public files; a third-party service with each model's own licence |
| AI API | No | Nobody: the models run on the phone |
Store fees apply to purchases if you sell Pro (Google Play and the App Store keep their commission).