Onoff

In-app purchases
1M
Downloads
Content rating
Rated for 12
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About this app

What if you could get a second number in minutes, without the hassle of using a second phone or a second SIM card, but just by downloading an app? You dreamed of it, Onoff made it happen!

Download the Onoff app and get a second number in an instant!

You will want to use a second number for:

Having a separate professional line - separate your professional and personal life

Protecting your privacy when you are online - your safety is our priority

Selling goods online in total confidence - safely communicating with your potential buyers

Carrying only one phone on you - less weight in your pocket, less hassle between switching the phones

Being able to use your phone number from any smartphone and even from your web browser - we want you to have a number as flexible as your email!

Make low-cost international calls - the world is just one call away


With Onoff, you also have:

Unlimited calls and SMS
Integrated visual voicemail
Voice messages
Synchronization of all your contacts list
Possibility of porting an existing number, in order to use it in the Onoff App
An app compatible with all SIM cards to always call on the best network
Numbers from more than 30 countries available


And there’s much more!

You can follow us on:

Facebook - Linkedin - Twitter - Instagram

Do not hesitate to share your feedback and comments at [email protected]

Have a nice day with Onoff.


In the application, you can subscribe to a number or a calling plan, the prices of which vary depending on the nationality or region chosen, as well as the duration (1, 3 or 12 months). Payment will be made through your Google account after confirmation of purchase, and will be withdrawn 24 hours before the end of each billing cycle. You can deactivate automatic renewal in the settings of the Google Play after purchase, at least 24 hours before the end of the current subscription period. With your Onoff number, you can make unlimited calls throughout Europe. For communication outside of Europe, you can also purchase credits, valid for any destination!

We cannot guarantee the systematic compatibility of numbers with verification services by SMS.
Updated on
Oct 30, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Financial info and 8 others
Data is encrypted in transit
You can request that data be deleted

What's new

TelecomAPI:
• Improved handling of incoming GSM calls during active onoff calls
• Enhanced stability in edge cases
User Interface:
• Updated UI components to align with new design guidelines
• Improved overall interface coherence and modernity
Bug Fixes:
• Resolved numerous bugs
• Enhanced overall system performance and reliability