What Tablif read on Umbra's site
Umbra describes itself as: “Umbra an autonomous agent that lives on your Android phone”
- Price model: free tier
- Free tier: Free forever
- Stage: Beta
What it is
Calls itself “agent”.
- Calls itself: agent
“An agent that lives on your phone.”
Where it puts itself
Claims “real”.
- Superlative claim: real
“A real Linux machine in your pocket.”
What it costs
A free tier, free forever.
- Free plan: free forever
“…free and open source (MIT)”
Who it sells to
Sells to consumers. In 繁體中文.
- Sells to: consumers
- Languages: 繁體中文
“An agent that lives on your phone.”
“繁體中文”
How it runs
A mobile app for Android. Runs locally and works offline. Offers an API. Open source. AI is the core of the product. You can bring your own API key.
- Kind: mobile
- Runs on: Android
- Runs where: on the device, offline
- API: yes
- Open source: yes
- AI role: core to the product
- Bring your own key: yes
“An agent that lives on your phone.”
“Android 16 · arm64 · 816 MiB · free and open source (MIT) · sideload (no Play Store build)”
What it works with
Names ChatGPT, Claude and 5 more on its pages.
- Names: ChatGPT · Claude · Debian · +4
“Sign in with a ChatGPT, Claude or Google account”
“A Debian environment with bash, git, Python and Bun”
What it offers as proof
In beta. Try it without signing up. Publishes docs.
- Stage: beta
- Trial asks for: nothing
“This is a preview build for sideloading.”
“There is no Play Store build.”
Sources
Tablif read these pages, last on 26 Oct 2026. Everything above is what the product says about itself; Tablif does not verify every claim.
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