App Killer: Close Running Apps

4.4
19K reviews
Content rating
Everyone
1M+
Downloads
Content rating
Everyone
Learn more
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About this app

App Killer Manager app help you close apps running in the background. Sometimes many apps run in the background in your phone, and they consume much phone memory and make your phone running slowly. You can use the Close All Running Apps tool to kill many apps running in the background.

Note:
This App does not collect any personal data.
This App requires the accessibility service permission in order to be able to close other apps.
Close apps running in the background and release more phone memory.
Updated on
Jul 2, 2026

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
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

18K reviews
Derrick Stultz
July 30, 2026
This app is absolute GARBAGE! I would NOT download this app. I couldn't even get to the cleaning functionality. I was inundated with ads. You get an ad before you see the main menu. If you scan, you get an ad. If you try to do anything after the scan, you get an ad. You'll be forced to watch the whole thing (it won't let you skip). Is it possible that this app works if you pay for it? Possibly... However, if the free version sucks this bad, why should you pay for it?
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K F
May 31, 2023
Thank you! I have a Samsung that has overheated for years. It would turn off and wouldn't restart for an hour or more. Every day, I put it in the freezer to cool down. I thought I needed a new phone, until I got this app. I was surprised to learn I had 16 other apps running silently in the background, using battery, heating my phone! Now I run this app a few times a day, and my phone no longer overheats. Battery lasts longer, too! Great app!
159 people found this review helpful
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File Recovery, App Manager and Phone Cleaner
May 26, 2023
Hi, thank you very much for your feedback.
SOS Management
August 21, 2024
I was hoping this would kill apps automatically, but need to open it manually and it kills apps one at a time by force stopping them. You cannot close the window during this process. It works fine for what it is and they don't ask for unnecessary permissions. Recently, they have started running loooong ads. I don't mind the quickies, but will be looking for another app if they continue.
4 people found this review helpful
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What’s new

- Close running apps
- Manage apps
- While list
- Fix Bugs