KaiClosed betaBeta
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Android and iPhone · invite-only closed beta

You’re early. Good.

Kai is the AI personal trainer you just talk to. We’re letting people in a few at a time so every bug report gets read. Got a key? Unlock your download.

On iPhone? Pick “iPhone” when you ask for a key. The same key opens the Android download and the iPhone TestFlight build.
6:04 AM · Leg day

You came to lift.
Not to fill in forms.

You came to lift. Not to fill in forms.

What’s in the beta.

  • Voice logging

    Sets, meals, water and weight, in plain English or Taglish.

  • Plate and barcode scans

    Calories and macros from a photo, editable by voice.

  • Watch sync

    Calories burned, steps, sleep and heart rate through Health Connect.

  • A coach that remembers

    Plans, next-set targets and weekly check-ins from your own numbers.

Installing takes a minute.

  1. 01

    Unlock and download

    Open the link from your invite email on your phone. The key fills in; tap Download (Android) or Get Kai for iPhone.

  2. 02

    Allow it once

    Open the file. Android asks to allow installs from your browser: turn it on for this one install.

  3. 03

    Install and open

    Tap Install, open Kai, and sign in with Google or Apple. Kai asks for your key once: it binds to your account.

  4. 04

    Stay up to date

    When a new version is out, Kai shows an update card. One tap downloads it.

On a computer?Scan with your Android phone’s camera to open this page there.
How do I get a beta key?

Use “Get a key” above. You get a confirmation right away and your personal key by email when your spot opens, usually within a few days.

I lost my key.

Search your inbox for “Your Kai beta key” from kai@vibeboxph.com, or request again with the same email and we’ll resend it.

Is it safe to install an app from a website?

This APK is built and signed by Kai, and every update is signed with the same key, so Android only accepts real Kai updates. Google Play Protect may still scan it the first time; that is normal for apps from outside the Play Store.

How do I install on iPhone?

Unlock with your key and tap “Get Kai for iPhone”. It opens in TestFlight, Apple’s free beta app (install it from the App Store first if you don’t have it). Needs iOS 16.4 or newer.

Why not the Play Store?

Kai is in beta. Direct download lets us ship improvements every week without waiting on store review. A Play Store listing comes later.

Will my data carry over?

Yes. Everything lives in your Kai account, so it is there when you sign in, on any phone.