# Simmo

> Avoid bill shock – Always use the right SIM

Canonical page: [https://chrome-stats.com/d/app.simmo](https://chrome-stats.com/d/app.simmo)

## Overview

- **ID:** `app.simmo`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** mikelward.com
- **Category:** COMMUNICATION
- **Downloads:** 4
- **Last updated:** 2026-10-10
- **First published:** 2026-09-08
- **Publisher country:** GB
- **Data as of:** 2026-11-07
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=app.simmo)
- **Website:** [https://mikelward.com/software](https://mikelward.com/software)
- **Privacy policy:** [https://mikelward.github.io/simmo/PRIVACY.html](https://mikelward.github.io/simmo/PRIVACY.html)

## Description

Simmo automatically chooses the best SIM for every call and helps you use the best SIM when you land in a new country.<br><br>And it uses Android&#39;s call routing functionality so it works hands free with your headphones, car, or AI assistant.<br><br>• Custom rules in case you have multiple SIMs for one country.<br>• Match single countries or whole groups (EU/EEA, North America, Caribbean +1).<br>• Choose to send calls to Google Voice or another calling app instead of a SIM.<br>• Data rules for travel — Simmo checks on arrival and warns when you&#39;re roaming or using the wrong SIM.<br>• If a rule needs an eSIM that&#39;s currently off, Simmo guides you to re-enable it.<br>• No surprises — if no rule matches, your call goes through on your default SIM exactly as it would have. Emergency calls are never touched.<br>• Private by design — rules and number parsing run entirely on your device. Simmo has no servers, and your dialed numbers are never sent to us.

## Rankings

- #3,058,423 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/app.simmo)