Call-Timer can make your phone automatically hang up when your call reaches a configurable predefined time.

Why it is needed? Many network carriers or telecom services offer free calls for first 5, 10, 20, xx minutes. If you don’t want to monitoring the elapsed time and manually hang-up the call while talking, then you can have this application do it for you.


  • Sony Experia XZ, Galaxy Note, Galaxy A6, J7,, P20 lite, Mi A1 ... running Android 8.0: You must enable option "Timer starts on answer". Must set Call Timer as default phone app.

  • SAMSUNG phones: in some Samsung phone models such as Jx, Sx...need to make at least one call before you can test Call-Timer. If you buy a new phone or you reboot your phone, please make at least one call before installing Call-Timer

  • Xaomi phones: 1. Open Security app--> Manage apps--> Call Timer and click Autostart
    2. Click Menu icon and swipe Call Timer screen down to lock the app

  • SAMSUNG phones (Android <= 7.1) in POWER SAVING MODE: must disable automatic power saving for Call-Timer: Settings->Battery->Detail-Call Timer->Disable

  • OPPO phones:
    + For F3, F3 plus, F1s (2017) and A57, please download "Call-Timer for Oppo" app
    For Color OS 3.0, 3.1 phones such as Oppo F3, F3 plus, F1s:
    + Go to Security Center---Privacy permissions--Startup Manager. Then turn on Call Timer to allow it startup in background.
    + Go to Batery--Batery optimization--Call Timer. Then choose "do not optimize".
    + Go to Batery--Energy Saver-- Call Timer. Then disable "Free when in background" andAutomatically optimize when an Abnormally is detected".

  • DUAL SIM phones: In order to keep Call-Timer working well on dual SIM phones, you need to configure default SIM card for voice calls AND make calls from that default SIM card.


+ Auto hang up: user sets time limit once and the application will be in standby mode; whenever there is an outgoing call or incoming call (optionally), the application will be activated and begin to time the call.

+ Periodic notifications: This is useful for people who are charged per minute.

+ Specific numbers: Allow you to specify individual phone numbers to apply limit of talk time to. You can add phone number to specific number list either by picking up contact from contacts list or by adding phone number prefixes, which are common beginning digits of the phone numbers that you want to add to the specific number list. Please note that when you choose to use “Specific numbers” feature, call-timer will not be activated (no auto hang up nor notifications) for phone numbers which do not belong to those numbers that have been added to specific number list.

+ Multi-call support. Please

+ Auto redial.

+ To be notified before hang-up

+ Temporarily disable call timer for current call

+ Exclude contacts from timer: If you don't want call timer to have effect on certain contacts or prefixes (for example, toll free numbers), you could do that though "Exclude numbers".

+ Widget for fast enable/disable and for dialing most contacted contacts.


- OPEN THE APP AT LEAST ONCE AFTER INSTALL, otherwise force close error will occur due to first time data is not initialized.

Please send suggestions or report bugs to

Thank you!

- Many thanks to Fernando Salazar Peris for Spanish translation!
- Many thanks to Mikhail Kitaev for Russian translation!
- Many thanks to Yvette Wang for translation into Chinese
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What's New

- Problems occur on some devices (Galaxy Note, Galaxy A6, J7,, P20 lite, Xperia, Mi A1 ...) running Android 8.0 (and above): auto hang up, timer on incoming calls. You must enable option "Timer starts on answer". Must set Call Timer as default phone app.
- Timer start on answer.
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Additional Information

June 8, 2018
Varies with device
Current Version
Varies with device
Requires Android
Varies with device
Content Rating
Interactive Elements
Users Interact, Shares Location
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