Onoff Numbers APK is a free communication app for Android by Onoff Telecom. Your Second Number With An App. On this page you can get the latest version 6.1.8.0, read what it offers and follow a simple install guide.

What Is Onoff Numbers APK?
Onoff Numbers belongs to the Communication category and is built by Onoff Telecom. It has already reached 1,000,000+ installs on Google Play with an average rating of 3.6/5 from 18,893 ratings, which shows how many people rely on it every day.
You dreamed of it, Onoff made it happen! 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
Downloading the Onoff Numbers APK file lets you install the app directly, update it on your own schedule and keep a backup of the version that works best on your phone.
Key Features of Onoff Numbers APK
- 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
- Make low-cost international calls – the world is just one call away
- 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
Onoff Numbers App Information
| App name | Onoff Numbers |
| Package | com.onoffapp.app |
| Category | Communication |
| Developer | Onoff Telecom |
| Latest version | 6.1.8.0 |
| Requires Android | 9 |
| Installs | 1,000,000+ |
| Rating | 3.6/5 from 18,893 ratings |
| Last updated | October 15, 2026 |
| Price | Free |
How to Download and Install Onoff Numbers APK
- Scroll to the download button on this page and tap it to save the Onoff Numbers APK file.
- Open Settings on your phone and allow installs from your browser or file manager when asked.
- Open the downloaded file and tap Install.
- Wait a few seconds, then tap Open to start Onoff Numbers.
- Switch the unknown-sources permission back off to keep your phone protected.
What’s New in Onoff Numbers 6.1.8.0
AI Call Protection, AI Message Protection. The listing was last updated on October 15, 2026.
Tips for the Best Experience with Onoff Numbers
- Keep at least 500 MB of free storage so Onoff Numbers can install and update smoothly.
- Use a stable Wi-Fi connection when you download the file or open the app for the first time.
- Grant only the permissions that Onoff Numbers really needs and review them from time to time.
- Restart your phone after a big update if the app feels slow or freezes.
Device compatibility
Onoff Numbers works on phones and tablets running Android 9 or higher. Older devices may run it a little slower, so close background apps if you notice lag.
Is Onoff Numbers APK Safe to Use?
Onoff Numbers is the same app that is published on the official Google Play listing. Always download from a source you trust, keep your phone updated and scan files with a security app if you are unsure.
Looking for something similar? Browse our Communication apps or discover more free Android apps.
Onoff Numbers FAQ: Common Questions Answered
Is Onoff Numbers APK free to download?
Yes. Onoff Numbers is free to download and use. Some features may offer optional in-app purchases.
What is the latest version of Onoff Numbers?
The latest version listed here is 6.1.8.0. It was last updated on October 15, 2026.
Which Android version does Onoff Numbers need?
Onoff Numbers needs Android 9 or newer to run properly.
How do I update Onoff Numbers?
Come back to this page for the newest file, download it and install it over the old version. Your data stays in place.
Final Thoughts on Onoff Numbers
If you want a reliable communication app, Onoff Numbers APK is worth installing. Use the button above to get version 6.1.8.0 and enjoy everything Onoff Numbers has to offer.