Reinvent your communication with the Onoff application

Discover the useful and awesome features of Onoff.

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Choose Your Second Number

Install the app and easily choose your second number from a list of local and international numbers (VIP Numbers are also available)

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Instant usage

You can start using your number immediately. Make GSM calls directly from the application.

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Send SMS

Send and receive SMS directly from the app! A simple, fast and efficient way to communicate with your second number.

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Share your pictures and videos via MMS

Share moments that matter to you ! Our application gives you the possibility to send, receive and share photos and videos with your chosen contacts.

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Integrated Voicemail

Personalize your voicemail directly integrated into the application! Record your own voicemail greeting or choose a pre-recorded announcement in the language of your choice.

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Synchronize your contacts

No time to lose! Synchronize all of your contacts into the app in just a few seconds.

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“Do not disturb”-mode

With Onoff, you can turn off your second number at any time, or choose between receiving only calls or SMS. Enjoy your privacy on the weekends or stop everything for the meeting of your life! It's On or Off!

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Use Onoff with a current number!

You want to use Onoff with a mobile number you already have? It's possible! Onoff is the first operator in the world to offer you the possibility to port your number to the Cloud and to access it from any device.

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Program your texts sendings

With Onoff Business, you can write your SMS and send it in the future. Just choose the date and time and it’s set up.

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Use an international number

Need to call abroad? Choose an international number from the 30 countries available with Onoff to call at local rates.

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Send vocal notes

Send and receive voice messages, in case you cannot send an SMS or do not have the time to tap a long message.

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Access your number from another device

Low battery and no charger in sight? Download the Onoff app on your friend’s or colleague’s smartphone and access your second number as well as all of your contacts. Everything is stored in a secure cloud.

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Hide your number

Protect your private life by hiding your number and its content from the home screen of the app.

Get your second number with Onoff app immediately!
  • IOS
  • Android