ON-DEVICE · PRIVATE BY DESIGN

What do you
want to do today?

Sessions AI runs powerful language models entirely on your iPhone, iPad, and Mac. Write, research, answer questions, and make art — privately. No account, no cloud, nothing leaves your device.

Download on the App Store Read the docs

No account · No cloud inference · No telemetry

Research Phi-4 mini · 2.3 GB
Summarize chapter 3 of my biology textbook and quiz me on it.
Knowledge base · Biology 101 3 sources
Chapter 3 covers cellular respiration — glycolysis, the Krebs cycle, and the electron transport chain. Here are five questions to test yourself, starting easy…
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How it works

Decide, gather, then let it work

Sessions is built around the things you actually want to get done. Set it up once around a goal, and every session starts with the right context.

01

Decide what to do

Start with a goal — study for a class, draft a report, plan a trip, or make art.

02

Gather your material

Add local files or fetch a URL. Sessions converts and indexes it on-device.

03

Give it a persona

Create a persona per class or project. Each carries its own prompt, knowledge, and tools.

04

Start a session

Open a chat with that persona — it has everything in context. Attach more files anytime.

Everything, on your device

A complete AI workspace that never phones home

Private by design

On-device only. No cloud servers, no account. Your conversations never leave your iPhone, iPad, or Mac.

Choose your model

Pick from a catalog of open models. Download only what you need; tune length, creativity, and behavior.

Knowledge base

Add your own documents and Sessions grounds answers in them — searched and indexed locally. No uploads.

Personas

Separate identities, each with its own system prompt, knowledge base, and tools — one per class or project.

Built-in tools

Calendar, reminders, email drafts, web search, calculator, maps, and more — invoked in plain language.

Create images

Switch to image mode and generate artwork locally — no prompts or pictures ever sent to a server.

Take action

Ask in plain language. Sessions does the rest.

“Add a reminder to call Mom tomorrow.” “What’s on my calendar this week?” “Draft an email to my professor asking for an extension.” The model reaches for on-device tools to get it done.

On Mac, it can also search files with Spotlight, draft Mail, create Notes, and open apps.

Calendar Reminders Email drafts Web search Fetch a URL Wikipedia Calculator Maps Contacts
100% ON-DEVICE

Nothing leaves your device

No cloud inference. No accounts. No telemetry or analytics. Your chats, knowledge base, and model data stay on your hardware — full stop.

No cloud inference
No account required
No telemetry or analytics
Web search sends only the query

Get Sessions AI

Free on the App Store for iPhone, iPad, and Mac. Download and start — no sign-in, no cloud, no training on your chats.

Download on the App Store

Requires iOS 18 · macOS 14 or later