Kai

What it does

Carries context across sessions so you are not re-explaining your situation each time, and runs on Android, iOS, Windows, Mac, Linux and the web, with store listings for the mobile versions. The memory is the point and also the exposure: what you tell it goes to whichever AI provider you configure, and the more personal history it accumulates, the more a leak would matter. Check where that data lives before feeding it anything sensitive.

Summary based on the project's own description. The Japanese page has a fuller beginner guide: setup difficulty, what to prepare, and a step-by-step start.

Screenshots & visuals

Before you start

• Setup difficultySome setup needed
• Command lineNot required
• API keyRequired
• Sends data onlineYes

Judged automatically from the project's own metadata. Always confirm on the official page.

Kai FAQ

Is Kai free?

Kai itself is free, but it needs an API key for an external AI service. That service charges separately, though some have a free tier.

Do I need to install anything or write code to use Kai?

You install it like a normal desktop app. No command line involved.

Does Kai work on a phone?

Yes, it works on a phone.

Can I use Kai commercially?

The licence is Apache-2.0, which permits commercial use. Conditions such as keeping the copyright notice still apply, so read the licence text before shipping it inside something.

How it compares

The conditions that decide whether you can actually use it, side by side.

"Sends data out" means your input is uploaded to someone's server. Pick "No" when the material cannot leave your organisation.

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