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Mailcycle
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Mailcycle on every device you use.

The iOS and Android apps, the web app, a Worker app for phones with no Google Play, and an MCP server for AI agents. Sign in once and your addresses are on all of them.

Download on the App StoreGet it on Google Play
Open the web app

Free to download · Free plan, no card · One account everywhere

Apps

The same app on iOS, Android and the web.

There is no "lite" version. Every platform runs the full console and can be paired as a Worker.

iPhone and iPad

App Store · iOS 16.4 or later

The native app, with QR pairing by camera and credentials kept in the Keychain. Tablet layouts on iPad.

Download on the App Store

Android

Google Play · Android 7.0 or later

The native app, with QR pairing by camera and credentials kept in the Keystore. Edge-to-edge, with a themed icon.

Get it on Google Play

Web

Any modern browser · Nothing to install

The full app on a computer or a phone. Pairing scans a QR code with a webcam, or takes the eight-digit code by hand.

Open the web app
Device fleets and AI agents

For phones with no store, and agents with no screen.

Two more ways to receive mail on the same account, each holding only the addresses assigned to it.

Mailcycle - Worker

Android APK · No Google Play needed

A Worker-only Android app for phones in a device fleet. It pairs with an account, receives mail for the addresses assigned to it, sends from them on Personal and above, and installs its own updates.

Download the APK

MCP server

mailcycle-mcp on npm · Scale and above

Gives an AI agent its own email address. It runs on the agent's machine and decrypts mail there. Pair it by pasting the line this prints into the app:

Terminal
npx -y mailcycle-mcp pair
Set up the MCP server
Questions

Before you install.

Yes. The apps are free to download, and the Free plan needs no card: 3 email addresses that receive mail. Paid plans can be bought in the iOS or Android app, where Apple or Google bills them, or on the web by card or in crypto.

Not a separate one. The web app at app.mailcycle.email is the full app in any modern browser, on Windows, macOS, Linux or ChromeOS.

Yes. Sign in to the same account in the iOS app, the Android app or the web app. A device paired as a Worker holds no account of its own and receives only the addresses assigned to it.

With Google Play, the Android app, paired as a Worker. With no Google Play, Mailcycle - Worker, the APK from this page. A phone that can install neither runs the web app and pairs the same way.

No. A balance is topped up on the web, by card or in crypto. The iOS and Android apps show the balance when there is one.

Start with one email address.

Create an account, mint an address and pair your first device in a few minutes. The same account scales to a fleet.

Get startedExplore Mailcycle