Σ

Files, messages, notes, tasks, clipboard, and the keyboard. One application, for Android.

Six things most phones keep in six separate apps, each with its own account, its own advertising, and its own idea of what it is entitled to know about you. Σ does all six and knows nothing.

What it does

• Files — browse, move, rename, compress, share. Storage at a glance
• Messages — a full SMS and MMS client. Pin, block, mute, react, quote
• Notes — folders, checklists, and notes that hold their shape
• Tasks — a to-do list built as a conversation, because that is what a list of things you tell yourself actually is
• Clipboard — history you can search, pin, and clear
• Keyboard — part of Σ, not a separate download

What it does not do

• No account. There is nothing to sign up for
• No advertising, no analytics, no telemetry, no crash reporting
• No server. We operate none for it, so there is nowhere for your data to go
• No third-party code — not a library, not a font, not an SDK

The last one is unusual enough to be worth stating plainly. Σ is written in a language we built and compiled by a toolchain we built. Nothing in it was authored by anyone else, which means nothing in it reports to anyone else. That is not a policy we ask you to trust. It is a property of how it was made.

Privacy

Σ collects nothing, and the reason is structural rather than promised. Read the policy ↗