iO App

iO App

iO – Free chats, calls and more. Made in Switzerland – for the world!

iO App Screenshots

iO App 3.7.0 Description
iO App (Package Name: is developed by Swisscom (Switzerland) Ltd and the latest version of iO App 3.7.0 was updated on July 16, 2017. iO App is in the category of Communication. You can check all apps from the developer of iO App. Currently this app is for free. This app can be downloaded on Android 4.0+ on APKFab or Google Play. All APK/XAPK files on are original and 100% safe with fast download.
Communicate for free using a single app. Phone, chat, send pictures or videos and much more. Make free unlimited phone calls to the Swiss fixed and mobile network – even from abroad. Your privacy is protected, thanks to secure data storage on Swisscom servers in Switzerland.
A single app for all your communications:
- Free phoning and texting to other iO users
- Unlimited chatting with other iO users
- Invite up to 100 friends to a group chat
- Sharing of pictures, videos, locations, contacts and more with other iO users
Make «iO Out» calls free of charge:
- Call practically any number in Switzerland, Europe, Canada or the United States *
- Texting to all of your worldwide contacts who don’t yet have iO *
Call Switzerland free of charge:
- Unlimited phone calls to the Swiss fixed and mobile network – even from abroad *
Protect your privacy:
- No use is made of your personal address book
- Communication is secure and encrypted
- All sensitive data remain in Switzerland
- To use iO, you need to have an Internet connection via WLAN or a mobile data network (3G/LTE).
- The Internet connection is not included and usage may incur additional costs.
- An Internet connection via a mobile data network (2G/3G) may result in impaired voice quality, especially at train stations, on trains or in cars.
Follow us on Facebook, Google+ and Twitter
*) Free for Swisscom Natel infinity & Natel light (flat rate Switzerland only) customers only
iO App 3.7.0 Update
Note: The iO service ends on 31.8.2017
Performance improvements and numerous fixes
iO status:
You can find service updates on known technical issues and maintenance work here:
Read More
iO App Features
More Information
Package Name:

Update Date:


Latest Version:


Need Update:

Submit latest version


Android 4.0+