Telz: International Calls

19K reviews
Content rating
PEGI 3
1M+
Downloads
Content rating
PEGI 3
Users Interact, In-App Purchases
Learn more
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About this app

With Telz, your international calling app, calling abroad from Switzerland is as easy as making a local call. Make cheap international calls and VoIP calls to over 150 countries worldwide – in crystal-clear quality, with no roaming and at the lowest rates for mobile VoIP.

Call Eritrea, Afghanistan, Syria, Sri Lanka, Somalia, Ethiopia, Nigeria, Cameroon and many more countries across Africa, Europe and Asia. See the full list of countries in the app.

Telz – your app for cheap calls abroad

Telz is one of the best international calling apps, and it's free to download. No sign-up fees, no contracts – just transparent per-minute rates from only a few cents. Your credit never expires, and with optional auto top-up you'll never run out.

Why Telz?
Cheap international calls – Enjoy the lowest rates for mobile VoIP calls abroad. No hidden costs, no roaming charges – call the world at transparent prices.

Premium quality – Crystal-clear VoIP calls to international landlines and mobiles. Telz's stable technology keeps your calls smooth, even on a weak internet connection.

Free welcome bonus – Download the app and get starter credit. Make your first calls abroad without topping up.

Easy setup & top-up – Download the app and sign up in seconds. Top up your credit with secure payment methods or use prepaid mobile top-ups in over 150 countries.

Top up the mobile phones of friends and family worldwide – so everyone stays connected.

Wi-Fi calling and Smart Callback – Call over Wi-Fi, 4G, LTE or 3G and save on roaming costs. If your connection becomes unstable, Telz automatically switches to regular phone lines – for reliable international calls.

Pay as you go – You only pay for the minutes you actually use. No subscriptions, no contracts – all your spending is clearly listed in the app.

Smart features:
– Record calls and store them securely on your device
– Wi-Fi calling with no roaming charges
– Prepaid and international top-ups in over 150 countries
– One account on multiple devices
– Referral programme with bonus minutes
– Optional auto top-up
– 24/7 support in the app and online

Ideal for expats, travellers and families abroad – Whether you live, study or work in Switzerland, Telz keeps you close to your loved ones with top-quality calls to Africa, Europe, Asia and beyond.

Worldwide coverage – Cheap VoIP calls to over 150 countries – for all your international calls.

Finnish quality you can trust – Telz was developed in Finland and offers secure, stable and affordable international calls with excellent customer support around the clock.

Try Telz for free! Download the app, activate your starter credit and make cheap international calls over Wi-Fi or VoIP to landlines and mobiles in over 150 countries. All you need is an internet connection.

Rate Telz in the store and share your experience!

Website: https://telz.com
Support: support@telz.com
Call abroad cheaply from Switzerland – to mobiles & landlines worldwide
Updated on
Oct 28, 2026

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
  • No data collected
    Learn more about how developers declare collection
  • Data is encrypted in transit
  • You can request that data be deleted

Ratings and reviews

18.6K reviews
cornelius wiebe
September 16, 2026
Excellent app. Very easy to use. Calls are clear & good rates.
19 people found this review helpful
Did you find this helpful?
Telz.com International calling app
September 16, 2026
We are so much happy you like our Telz app! Thank you!
W M
August 8, 2026
Great experience & quality for my money unlike the phone cards which never gives the minutes they promise for my money. Keep up the great job Telz!
29 people found this review helpful
Did you find this helpful?
Telz.com International calling app
August 9, 2026
Thank you so much for the fantastic review! We are thrilled to provide a clear, reliable, and honest experience compared to traditional calling cards. Contact us anytime in the app: Menu → Support service or via e-mail support@telz.com. We’re always ready to help!
Aditya Suryavanshi
July 24, 2026
Worst application whenever I try to call, call automatically get disconnected it shows 500 internal server error. I wasted my money on recharge
23 people found this review helpful
Did you find this helpful?
Telz.com International calling app
July 24, 2026
Hello! Please contact us in app: Menu - Support service or via e-mail support@telz.com. We are ready to help! Thank you

What’s new

Thank you for using the VoIP international calling app Telz!

Fixes:
- Minor stability fixes

This update includes improvements to the user experience for tourists traveling between countries.
Please send all errors and suggestions to support@telz.com.