With Clever Dialer Caller ID you can easily identify unknown calls and block calls (Call Blocker). Actively protect yourself from spam and unwanted callers. Unfortunately, we're powerless against calls from private numbers with withheld numbers!

Developed in Germany 🇩🇪, operated in the EU 🇪🇺

Get started immediately – no registration required!
You can use the app right after downloading – no registration needed.

What this means for you:
✔ Fast onboarding – no sign-up necessary
✔ More privacy – your phone number stays private
✔ No user account required – we need neither your name, email, nor phone number

We respect your privacy and that of your friends. Your address book stays on your device – we do not upload your contacts to our servers.

Features
★ convenient caller ID with a wide range of functions
★ automatic identification of unknown phone numbers
★ real-time identification of unknown callers (caller ID)
★ Caller ID / phone number identification via internet search and phone directory
★ automatically supplements call history
★ spam protection: warns about cost traps, phone fraud and annoying spam calls
★ detects spam calls even when offline (offline spam protection)
★ call blocker: easily add annoying callers to the block list (block number)
★ address book entries are automatically whitelisted
★ block number ranges
★ basic caller ID features are available for free
★ with Clever Dialer PRO, ads are removed and you get access to advanced features
★ secure information: we place great importance on data protection
★ protects against phone harassment (spam blocker)
★ block every unknown number – only contacts get through

With caller ID, you always know who's calling. The Clever Dialer app identifies unknown phone numbers. We use publicly available directories (Das Telefonbuch, Das Örtliche, Gelbe Seiten), as well as ratings from our community, to find unknown numbers for you. We try to find out the identity of unknown callers for you. Additionally, you can easily block annoying callers directly. That's why spam detection is the most important feature of the Clever Dialer app. Thanks to its large active community, Clever Dialer can quickly identify and block phone numbers as spam, making it the perfect call blocker. This also works when you don't have internet, as all spam numbers are stored directly in the app.

Age notice: This app is intended for adults and young people aged 16 and over. It processes phone numbers and displays advertisements in the free version. Use by children under 16 is not intended.

🔐 Permissions — Why and what for?
From Android 10, Clever Dialer uses the official Android role "Caller ID and Spam App" — this gives the app only the permissions Android provides for this purpose.

📞 Phone & call log — identify incoming calls
👥 Contacts — exclude saved contacts from spam checks
🌐 Internet — match numbers with our database

Each permission is used exclusively for the stated function.

Privacy & number owners

Clever Dialer uses publicly available directories (Das Telefonbuch, Das Örtliche, Gelbe Seiten), publicly accessible internet sources, and ratings from our community to identify unknown callers and detect spam. Processing is carried out to protect against unwanted and fraudulent calls on the basis of legitimate interests (Art. 6(1)(f) GDPR).

Are you the number owner? You can request information, deletion, or objection at any time: privacy@cleverdialer.com

Data processing details: https://www.cleverdialer.app/en/privacy-statement-clever-dialer-app/

Provider: Sellwerk GmbH & Co. KG, D-90425 Nuremberg – Legal notice: https://www.cleverdialer.app/impressum

Updated: April 2026

Sellwerk GmbH & Co. KG

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