Contact
Email info@visionion.dev — bug reports, feature ideas, and questions all welcome.
FAQ
Does Quanta work offline?
Yes. After you download a model (or using Apple's built-in model on supported devices), Quanta works with no internet at all.
Which iPhones are supported?
iPhone on iOS 26 or later. Larger models need more RAM — Quanta shows a recommendation for each model and warns if one may be heavy for your device.
Why does the first message take a moment?
The first message after picking a model loads it into memory. After that, replies start quickly.
A download looks stuck.
Big models (several GB) take time on slower connections. The Models screen shows live download size and speed so you can confirm it's progressing. You can delete and retry a download anytime.
How does the free tier work?
You get 20 messages per day for free. A single one-time purchase unlocks unlimited messages — no subscription. Because everything runs on your device, there are no usage costs on our side.
Is my data private?
Completely. Conversations, voice, and images never leave your iPhone. See our Privacy Policy.
How do I delete my data?
Delete individual chats by swiping, clear everything in Settings → Privacy, or remove the app to erase all data and downloaded models.