100,000 - 500,000 downloadsAdd this app to your lists
+ By Swisscom (Switzerland) Ltd
A single app for all your communications:
- Free phoning and texting to other iO users
- Unlimited chatting with other iO users
- Invite up to 50 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.
*) For Swisscom customers only
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2.0.1: Bug fixes
2.0.0: Tina Turner specials
Experience the yodelled ringtone «Simply the Best» of Tina Turner.
Participate in the iO quiz (in the iO app) until September 15 and win prizes hand signed by Tina Turner.
Completely new and fresh design:
The new app design gives you a whole new iO experience that is sophisticated, simple and enjoyable to use. Filter your contacts by iO users.