4.3
22.1K reviews
1M+
Downloads
Content rating
Everyone
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About this app

Whether it's a prepaid or fixed-term contract - with the new AY YILDIZ app you always have an overview of your tariff and your options.

HIGHLIGHTS FOR PREPAID CUSTOMERS:
✔ Book, switch and cancel options
✔ Check available data volume
✔ Query balance
✔ Top up by credit card and bank account
✔ Change contact details

HIGHLIGHTS FOR CUSTOMERS WITH A TERM CONTRACT:
✔ View contract data, tariff details and booked option
✔ Check available data volume
✔ View and download invoices
✔ Change contact details

Install the latest AY YILDIZ app now and benefit from continuous optimization and improvements.
We look forward to every review and new ideas.

Have fun with the App!

The AY YILDIZ team
Updated on
Sep 3, 2025

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, App activity and 2 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.3
21.9K reviews
gk.e
July 8, 2023
Terrible app. It's difficult to find the needed options. And Ayyildiz takes advantage of your state. I had Smart S option, but needed to book an İnternet option for my 3 days travel. When I go back to app to to turn back to my option, it was unavailable anymore. Why I was able to use 2 days before and where is it gone now? I don't need volumes of M, L,... I need S and don't want to pay more for something that I won't use !!! Shame on you. Was a loyal customer, but will change my operator.
9 people found this review helpful
Bhawana Kumari
April 13, 2024
The shittiest experience I have with any of the network providers. Other than Turkish and German there is no other language available. Almost whole day I am trying to contact the provider to get some help. But all lines are busy. There's only limited options available on website. Why they sell the service when they cannot provide it? I am regretting to switch to this provider, please don't buy it.
7 people found this review helpful
Josephine Babirye
May 15, 2025
If it was possible to comment without a star, they deserve nothing. After cancelling the contract before the end of the two years, they blocked my SIM card and still removed money from my account,no internet access, no calls, nothing. Even when I called the customer service nothing changed. It's a smart way of money heist

What’s new

Die Version 7.4.26 enthält technische Verbesserungen, wie Bugfixes und Funktions-Optimierungen.

App support

About the developer
Telefónica Germany GmbH & Co. OHG
appstore@telefonica.com
Georg-Brauchle-Ring 50 80992 München Germany
+49 89 787979443

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