Modelbase
Download

Introducing Modelbase: offline, private AI chat for iPhone, iPad and Mac

· By Modelbase Team

Modelbase on iPhone: a chat in which the model says it runs on the phone and needs no connection, in front of an answer from the web with sources from NASA, ESA and Wikipedia.

Modelbase is a chat app that runs open AI models on your own device. You ask, the model answers, and the whole conversation happens on your iPhone, iPad or Mac: no account, no sign-up, and no connection needed.

Ready the moment you open it

Most local AI apps start with a download. Modelbase comes with its first model inside: LFM 2.5 (1.2B) by Liquid AI, small enough to be quick on a phone and good enough for everyday writing, questions and ideas. Open the app and start typing.

When you want more, the model picker has more than 50 open models to choose from, tuned for Apple silicon:

  • Qwen 3.5 in 0.8B, 2B and 4B, with optional reasoning;
  • Gemma 4 and Gemma 3 by Google;
  • Llama 3.2 by Meta, Phi 4 Mini by Microsoft, Granite 4.0 by IBM, Ministral 3 by Mistral AI;
  • vision models that can look at your photos, such as LFM 2.5 VL and Qwen 3 VL.

Private by default

A model on your device processes what you type on your device. We don’t collect, receive or store your chats. They stay on your device and, if you use iCloud, sync through your own private iCloud storage, which we can’t access. The privacy policy has the details.

When you need the web

Some questions need today’s answer. Modelbase can search the web and reply with numbered sources you can open, gather many pages into one answer with deep research, and show the weather, a stock or places nearby as live cards. Searches go straight from your device to the service that answers, and you can turn any of them off in Settings.

And the rest

  • Voice mode: talk, and hear the answer out loud. Your speech is turned into text on your device.
  • Photos: snap a plant, a menu or a sign and ask what it is.
  • Documents: drop in a PDF and ask about it.
  • Calendar and reminders: “Am I free on Friday afternoon?”
  • Bring your own model: connect OpenRouter with your own key, or a server on your own network.

Modelbase is free on the App Store and speaks 15 languages. We’d love to hear what you think: write to us at support@modelbase.app.

Try it on your iPhone, iPad or Mac

Modelbase is free on the App Store.

Download