Your AI assistant.
Works offline.

Chat, translate live speech, and transcribe recordings on your iPhone or iPad. Once your models are installed, you can use Jack without an internet connection.

Prompt preview

Chat is just the start.

Open an action when you have a specific task in mind.

Translate as you talk

Read a live translation while someone speaks. Jack uses the language models installed on your device.

Turn speech into text

Transcribe live audio or import a recording. A local speech model turns what was said into text.

Make a QR code

Turn a link or a bit of text into a QR code you can save and share.

Vision

Snap a photo or choose one from your library. Jack can explain what’s in it or pull out the text.

Summarize and rewrite: Pull key points from notes or make a draft clearer.
Make a checklist: Turn notes into tasks you can review and save.
Extract text from PDFs: Pull text from a PDF so you can copy or save it.

How offline setup works.

Download the models and languages you need while connected. You can also import compatible models from Files or use Apple’s on-device model when available. Jack processes your prompts, audio, and photos on your device.