Onoff

In-app purchases
3.3
15.2K reviews
1M+
Downloads
Content rating
Everyone
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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 support@onoffapp.com

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 Payment will be made through your Google account after confirmation of purchase, and will be withdrawn 24 hours before the end of each billing cycle.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
Nov 21, 2022

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.
This app may share these data types with third parties
App activity
This app may collect these data types
Personal info, Messages and 6 others
Data is encrypted in transit
You can request that data be deleted
3.3
15.2K reviews
Kandys Ngo Jackson
December 3, 2022
The onoff calling is.... Awful , I think that you can improve it, when i receive a call, I have this ugly UX Onoff, that appear on my screen.... The idea is cool, but it could be better!, For example: when I receive a SMS, if I answer to this SMS, I don't know if it has been sent
14 people found this review helpful
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Karthikeyan ST (ST)
October 20, 2022
This app logged off without any warning and I missed important business calls and messages. Doesn't a caller app supposed to persistent like WhatsApp. What a waste of money
9 people found this review helpful
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Chris Auton
March 29, 2022
Most of the time it just works fine. If your signal is a bit marginal you may well find that calls fail to connect properly, which is annoying. It's easy to call back a customer but that doesn't look quite as professional as we would like. There is also a bit of a weird pause when answering calls which makes the start of the call awkward. It works for us (friendly local business) but is lacking the polish that some might be looking for.
54 people found this review helpful
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What's new

This new release includes a new redesigned menu to make things even more easier with your Onoff number! On top of that, we also updated the design of our number settings and account settings menu.
The number selection has also been improved with a new design, yes we also think of the new Onoffers that will join us soon ;)
Of course as always, we have also fixed some minor bugs and improved overall performance.