Ask anything. Tell no one.
Zitto is an AI that runs on your iPhone. What you ask stays on your phone and belongs to you. No account, no servers, no copy anywhere else.
One model download, then it works offline.
Your data never becomes ours.
The difference is where your question goes.
A cloud assistant
Zitto
You hold the only copy
Your chats are saved on your iPhone and nowhere else. We could not read them, sell them or hand them over, because we never have them. Export them as a file to move to a new iPhone.
Only you can open it
Zitto locks with Face ID, so your history stays closed to anyone who picks up your phone.
It stays out of the cloud
Chats are left out of your iCloud backup unless you decide otherwise.
You can destroy it
Erase everything removes every chat, model and setting. There is no other copy to chase.
Don't take our word for it.
Every AI app says it is private. Zitto gives you three ways to check, and each takes under a minute.
Turn on airplane mode
Ask Zitto something. It answers the same, because the model is on your phone and nowhere else.
Open the Privacy screen
It lists every time Zitto has gone online, and why. Downloading a model is the only reason it ever does. A Zitto Plus purchase is handled by Apple's App Store, not by Zitto.
Tap Erase everything
Chats, models and settings are removed from your iPhone. There is nothing left anywhere else to delete.
What Zitto knows about you:
Nothing.
Piano, Mezzo or Forte.
Three models, from light to powerful. You download one, once, and it lives on your iPhone. Zitto suggests the best fit for your phone.
A full assistant, all on the phone.
Show it things
Attach a screenshot, a photo, a PDF or a text file and ask about it. Every model reads images.
Talk to it
Dictate a question, have the answer read back, or hold a whole conversation by voice with Zitto Plus. Speech recognition is pinned to the device.
Trust the numbers
Arithmetic, percentages and unit conversions go through a calculator on your phone, not the model's memory.
Share to Zitto
Send a web page, a photo or a file from any app, or run "Ask Zitto" from Shortcuts.
Make it yours
Tell Zitto how to answer and what to remember about you. It stays on the phone with everything else.
Ask your files
Add PDFs, text files and images to the Library and Zitto answers from them, showing the page it used. They are read and indexed on your iPhone.
The honest trade-off
Zitto runs a small model on your phone, not in a data centre. It doesn't know today's news, it is less capable than the largest cloud assistants, and it can be wrong. It is built to say when it isn't sure, and to use a calculator on your phone rather than guess at numbers.
That is the trade: a little less power, and your questions stay yours.
Questions
Could Zitto ever see what I ask?
No. Your questions are answered by a model running on your iPhone, and Zitto has no server that could receive them.
Does it need the internet?
Only to download the model you choose. After that it works with no connection at all; a web page you share from Safari arrives as its text, and Zitto fetches nothing itself. Buying Zitto Plus goes through Apple's App Store, as with any app.
What happens to my chats?
They are saved on your iPhone, locked with Face ID, and left out of your iCloud backup unless you choose otherwise. You can erase them at any time.
Which model does it use?
Up to three, depending on your iPhone: Piano (about 625 MB), Mezzo (about 1.7 GB) or Forte (about 3 GB). Zitto suggests the best fit and only offers Piano where Mezzo does not fit. They are built on open-weight models, and the licences are listed in the app under Privacy, then Acknowledgements.