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

iO App Screenshot
iO App Screenshot
iO App Screenshot
iO App Screenshot
iO App Screenshot
iO App Screenshot
iO App Screenshot
iO App Screenshot
iO App Screenshot
Version
3.6.0 ( )
Update
Mar 27, 2023
Category
Installs
100+
Rate
0
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

Note:
- 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.


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*) Free for Swisscom Natel infinity & Natel light (flat rate Switzerland only) customers only