Aether is a general-purpose AI Agent app for Android, iOS and macOS, built on the Pi framework. People use it when they want a polished, ChatGPT-like assistant that runs locally and can be extended with extensions, shell tools and custom widgets rather than being limited to a single closed app.
Developer: Shilin "BaimoQilin" Zhou (Zhou-Shilin) · License: GPL-3.0 (open source) · Price: Free
Before you start: for the Shizuku integration, install and set up Shizuku first and grant Aether permission through it. For the built-in Alpine Linux environment, let Aether finish its automatic install before trying to browse files in the system Files app or SAF picker.
Official file from the developer's release · Oct 11, 2026 · SHA-256 6169d07aeb810b3b…
Key features
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Why isn’t Aether on Google Play?
Aether is published by its developer on GitHub, not on Google Play. It's also not on F-Droid.
Is Aether safe?
Aether is open source under the GPL-3.0 license, and the APK on this page comes from the developer's official GitHub releases. Some features, like the Alpine VM, Shizuku integration and SAF file access, involve extra permissions or setup, so only enable what you actually need. Aether comes straight from its developer rather than through Google Play, so it hasn’t gone through Google’s app review. As with any app, check the permissions it asks for and install it if you’re comfortable with them.
How to install
- Tap the download button above: the APK file downloads straight to your phone.
- When Android asks, allow your browser to install unknown apps.
- Open the file and tap Install.
FAQ
Is Aether free to download
The README does not list a price. You can download the APK from the GitHub releases page or get it from the App Store listing for iOS and Mac.
How do I install extensions in Aether
Extensions can be installed directly as zip packages by going to Settings, then Extensions, then Import extension. Aether natively supports standard Pi Extensions such as Pi Web Access, Pi MCP Adapter and Pi Subagents.
How is Aether different from a regular chat app
Aether is built on the Pi framework with a focus on extensibility. It includes a built-in Alpine Linux VM for running shell commands, supports Model Context Protocol servers through extensions, and lets you browse its environment through the system file manager, which goes beyond typical chat-only AI apps.
More free apps you won’t find on Google Play: Open Source Apps · Best Android apps not on the Google Play Store.
Frequently Asked Questions
Is Aether free to download
The README does not list a price. You can download the APK from the GitHub releases page or get it from the App Store listing for iOS and Mac.
How do I install extensions in Aether
Extensions can be installed directly as zip packages by going to Settings, then Extensions, then Import extension. Aether natively supports standard Pi Extensions such as Pi Web Access, Pi MCP Adapter and Pi Subagents.
How is Aether different from a regular chat app
Aether is built on the Pi framework with a focus on extensibility. It includes a built-in Alpine Linux VM for running shell commands, supports Model Context Protocol servers through extensions, and lets you browse its environment through the system file manager, which goes beyond typical chat-only AI apps.
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