Fast Task Killer

Just one tap the app icon to instantly release memory.

HD Movies Dev Team · jp.snowlife01.android.appkiller2

4.4 out of 5 (7 ratings) 1M+ downloads v4.0.4 1.1 MB Android 4.4+ PEGI 3 · Everyone

Download APK 1.1 MB All versions

Same certificate as the 2 other versions checked Details

At a glance

Latest version: v4.0.4 (45)
Updated: Jun 20, 2026 (4 months ago)
APK size: 1.1 MB
Requires: Android 4.4+ (API 19)
CPU support: Any (no native code)
Category: Tools (app)
Listed since: Nov 11, 2022 (at least)
Permissions: 9
Developer contact: [email protected]

About this APK

Fast Task Killer is an app by HD Movies Dev Team in the Tools category, listed since at least November 2022. It has no native code, so it runs on any Android processor.

Since version 3.1.0, the minimum Android version rose from 4.1 to 4.4. It asks for 9 permissions, none of them sensitive. It asks for the same permissions as version 4.0.2. The app can read the advertising ID that ad and analytics services use.

Ratings

4.4out of 57 ratings

5 ★86%
4 ★0%
3 ★0%
2 ★0%
1 ★14%

Ratings from users of the source store — not collected or verified by AAPKs.

What's new in v4.0.4

Minor improvements.

Description

From the listing uploaded by “arkanicapps2”.

Memory releasing app! Releases the memory by terminating running and background-waiting app processes. Just one tap the app icon to instantly release memory. This app has omitted the functionalities which take several seconds (3 seconds) for processing, to achieve the processing of fastest class. This app is recommended for those who are focusing on speed. This app is absolutely free and without any troublesome advertisements. A must-have app to easily maintain your smartphone. When the memory is released - Improves processing speed. - Battery lasts longer. Recommended for those who want: - An app with high memory release rate - An app with fast processing speed - No troublesome settings - An app which works with one tap - An app with no advertisements - A non-resident app for memory release (task killer) - No need to set apps to exclude (The app seeks to be extremely easy-to-use by eliminating settings.) How to use this app: (1) Install the app. (2) Tap the app icon. (3) Smartphone is refreshed after the memory is released. (4) The app automatically completely finish. (No need to install widget)

Version history

3 versions are listed, going back to v3.1.0. Since v4.0.2 it requires Android 4.4+.

v4.0.4 LATEST Jun 20, 2026 1.1 MB TRUSTED v4.0.2 Jul 31, 2025 1.1 MB TRUSTED v3.1.0 Jun 21, 2025 1.1 MB TRUSTED

All 3 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Same certificate as the 2 other versions checked

Store checks and file details

Developer signature not checked yet Jun 20, 2026
Antivirus scan result not available
Signed byC=JP
Signing certificate (SHA-1)5E:61:A9:9C:9F:46:B6:90:10:B8:D9:92:9E:2C:97:D7:97:80:D4:2E
File MD52d30a440cf1673c245a7c6719818b631
Uploaded by “arkanicapps2” 23 followers · uploading since 2022

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (9)

Fast Task Killer requests 9 permissions, none of them sensitive.

Advertising ID com.google.android.gms.permission.AD_ID
Full network access android.permission.INTERNET
Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
Kill background processes android.permission.KILL_BACKGROUND_PROCESSES
Prevent the device from sleeping android.permission.WAKE_LOCK
Receive push notifications com.google.android.c2dm.permission.RECEIVE
Run foreground services android.permission.FOREGROUND_SERVICE
Show notifications android.permission.POST_NOTIFICATIONS
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch

Fast Task Killer APK: questions and answers

Is there a version of Fast Task Killer for older Android phones?

The current version needs Android 4.4 or later. Version 3.1.0 is the newest listed build that installs on Android 4.1 and later. Get version 3.1.0 · All versions

Can I install this APK over the version I already have?

Only if it is signed with the same certificate as the copy on your phone and isn't an older version. If Android says “App not installed”, the certificates differ; uninstalling your copy first works but deletes its data unless it is backed up.

Is the Fast Task Killer APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is 2d30a440cf1673c245a7c6719818b631.