FRITZ!App Fon

3.4
26.6K reviews
1M+
Downloads
Content rating
Everyone
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About this app

Easy calling with the landline network

Make calls at home conveniently using your smartphone over your landline telephone numbers - anywhere in the Wi-Fi network of your FRITZ!Box. With the FRITZ!App Fon you benefit from the landline rates; for many providers even from flat rate telephony. HD telephony provides for crystal clear voice quality. Thanks to support for Bluetooth headsets you can enjoy complete flexibility for everyday calling and for working from home. The latest technologies mean that the FRITZ!App Fon works invisibly in the background no matter what the battery status.

The FRITZ!App Fon guides you through the easy Configuration. Simply log in by entering your FRITZ!Box password, selecting one of your landline telephone numbers, and them confirm: your smartphone is ready for landline telephony. Once it has been configured, the FRITZ!App Fon makes your smartphone ring immediately for incoming calls, just as if it were a FRITZ!Fon, the intelligent all-rounder for your home network with FRITZ!. Incoming calls ring simultaneously on your telephones and smartphones. You decide which device should pick up the call. If you would like your smartphone to ring only for certain landline telephone numbers, select only these numbers in the settings of FRITZ!App Fon.

The FRITZ!App Fon is the ideal telephony extension for your FRITZ!Box. Be it a handset for the new roommate in your shared apartment, an additional telephone for working from home, or the convenience of the smartphone that's always handy: with the FRITZ!App Fon you always have a practical solution in no time at all. It is easy to use the FRITZ!App Fon on multiple smartphones.

FRITZ!App Fon functions at a glance

Makes telephone calls over the landline with your smartphone
Top voice quality thanks to HD telephony
Supports Bluetooth headsets
Accesses the telephone books on the FRITZ!Box and smartphone contacts
Displays the names of known contacts during calls
Updated on
4 Jun 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.
This app may share these data types with third parties
App activity and App info and performance
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

3.3
25.2K reviews
Grégoire Miret
13 May 2021
After some struggles with poor audio quality (voice was barely understandable, I restarted, reseted, reinstalled...), it eventually works ! And I absolutely love the ability to make landline call from my mobile phone ! :) Thanks for the new UI, it looks much better :) And thanks for the answer, I have now my phone contacts once only :) Remain the ability to make calls directly from the Android interface (as there is the option to make Skype or WhatsApp call from a contact).
7 people found this review helpful
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AVM GmbH
20 April 2021
Hello, when the phone book is open in the FRITZ!App Fon, you can select in the menu (three dots on the top right) which phone books should be displayed. If necessary, please send us feedback with log, support data and the ID "#appfid2920". We have noted your wish to use the Android interface.
Bill Venables
11 May 2021
I had high hopes for this update. The interface is definitely better - a more modern look. Sound quality is a bit better, but still not up to the standard of a DECT phone on the Fritz!box system. Two issues: (1) lag/latency which means you end up interrupting the person you are talking to on the phone (2) voice distortion - making you sound like a Dalek. Sadly there doesn't seem to be any way of tweaking the sound through settings short of of trying a reinstall. In fact there don't appear to be any technical settings available at all which is strange on a VOIP phone.
3 people found this review helpful
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AVM GmbH
8 June 2021
Hello, please update to version 2.1.0 and read: https://en.avm.de/service/fritzapps/fritzapp-fon/knowledge-base/publication/show/97_Poor-voice-quality-when-conducting-calls/#zd. If applicable, send us feedback from the app with log, support data and ID "#appfid3698".
B BBB
24 April 2023
Seemed OK at first, but disappointingly it seems whenever I move within my mesh network (which otherwise works as it should) the app drops out completely and requires re-registration, which in turn requires an analogue phone or access to the fritzbox, making it completely unusable in practice...... I gave up and deleted the app but a few months later tried again it as it would be useful. However it is now completely unusable as it will not stay registered for more than 10 seconds. Uninstalling.
1 person found this review helpful
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AVM GmbH
24 April 2023
Hello! We are offering you an investigation again. To do so, please send us in-app feedback and include log, support data and ID "#appfid 5613229".

What's new

- Improved: Reworked connection display at app start
- Improved: Improvements to stability and details