tellows - Caller ID & Block Android
tellows - Caller ID & Block gets 100+ downloads a day worldwide (AppInsider estimate, September 2026, rounded down to a band).
tellows - Caller ID & Block is #71 in Communication Free on Google Play in Italy and charting in 2 of 15 countries we track.
Updated 27 Sep 2026 · rankings refresh through the day
Developertellows
CategoryCommunication
PriceFree
Released
Installs1M+
Rating★ 3.9 (25k)
Updated
Content ratingEveryone
Rating
3.9 ★
25k ratings
Measured
Best rank now
#71
Communication FreeMeasured
tellows - Caller ID & Block on Google Play
App details
App ID
app.tellows
Publisher
tellows UG (haftungsbeschränkt)
Publisher country
Germany
Content rating
Everyone
tellows - Caller ID & Block downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Google Play shows an exact lifetime install count; downloads per day are its daily change (measured). When Play hasn't refreshed the count, they come from new ratings and Top Free chart positions. Confidence is the chance the real number is within half to double ours.
Where tellows - Caller ID & Block's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
Retention · share of new users still active
Day 1
Day 7
Day 30
Time spent · per daily user
Average time spent Pro
min a day
Sessions a day Pro
Time per session Pro
min
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
In-app revenue
Worldwide, what users spend in tellows - Caller ID & Block before Apple and Google take their fee.
How this is calculated
Not on any Top Grossing chart: monthly active users × spend per user for its category, measured on the charted apps nearest the bottom of the charts.
Business model: In-app purchase-led
How tellows - Caller ID & Block makes money: subscriptions, one-off purchases and ads.
In-app purchasesAds
One-off purchases
/mo
of revenue
Ads
/mo
of revenue
Where it ranks on Google Play
Every top 200 chart it appears in across 15 countries.
| Country | Charts | Rank |
|---|---|---|
| Italy | CommunicationFree | #71 |
 Germany | CommunicationFree | #170 |
Apps near tellows - Caller ID & Block on the chart
Communication Free, around #71.
Ratings
Google Play, worldwide.
Rating
3.9 ★
25k ratings
Measured
Ratings
25k
Measured
Written reviews
104
Measured
About tellows - Caller ID & Block
With the tellows app, you can identify unknown calls and get helpful information about spam, advertising and scam calls. tellows is based on a large community where users rate phone numbers and share their experiences. This helps you better assess incoming calls before answering.
The ratings and comments come from other users and are continuously updated. You can look up unknown numbers, check the tellows score and add your own ratings to support other users.
How tellows works
📞 Caller identification
When your phone rings, tellows shows a risk assessment for the incoming call. The tellows score (from 1 – trustworthy to 9 – not trustworthy) helps you identify unwanted or potentially risky calls.
🔎 Look up unknown numbers
Search phone numbers and view ratings, comments and general information about the origin of the number, such as the country or network.
💬 Rate and comment on numbers
Rate phone numbers and share your experience with the tellows community. This helps improve the database and supports other users in assessing calls.
🚫 Call blocking and personal blacklist
In the free version, you can manually block calls using a local blacklist. In the Premium version, community-based ratings can additionally be used for automatic blocking. The local blocklist also works without an internet connection.
Features at a glance
📞 Caller identification with tellows score
🔎 Reverse phone number lookup
⭐ Community-based risk assessment
🌍 Information about number origin
Premium features (in-app purchase)
🚫 No ads
🔄 Automatic blocking of risky numbers
📴 Offline caller identification
📋 Personal blacklist with all numbers you have rated negatively
More information and support can be found on our website:
https://www.tellows.com
The ratings and comments come from other users and are continuously updated. You can look up unknown numbers, check the tellows score and add your own ratings to support other users.
How tellows works
📞 Caller identification
When your phone rings, tellows shows a risk assessment for the incoming call. The tellows score (from 1 – trustworthy to 9 – not trustworthy) helps you identify unwanted or potentially risky calls.
🔎 Look up unknown numbers
Search phone numbers and view ratings, comments and general information about the origin of the number, such as the country or network.
💬 Rate and comment on numbers
Rate phone numbers and share your experience with the tellows community. This helps improve the database and supports other users in assessing calls.
🚫 Call blocking and personal blacklist
In the free version, you can manually block calls using a local blacklist. In the Premium version, community-based ratings can additionally be used for automatic blocking. The local blocklist also works without an internet connection.
Features at a glance
📞 Caller identification with tellows score
🔎 Reverse phone number lookup
⭐ Community-based risk assessment
🌍 Information about number origin
Premium features (in-app purchase)
🚫 No ads
🔄 Automatic blocking of risky numbers
📴 Offline caller identification
📋 Personal blacklist with all numbers you have rated negatively
More information and support can be found on our website:
https://www.tellows.com
What's new in 2.9.3
Android 16 fixes
added Nightmode
added Nightmode