Greyscale

Quickly switch grayscale mode for Super AMOLED to save power.

与非 · com.fei_ke.greyscale

Not rated yet 10K+ downloads v1.2 15.6 KB Android 5.0+ PEGI 3 · Everyone

Download APK 15.6 KB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v1.2 (3)
Updated: Dec 28, 2025 (9 months ago)
APK size: 15.6 KB
Requires: Android 5.0+ (API 21)
CPU support: Any (no native code)
Category: Tools (app)
Listed since: Mar 11, 2021 (at least)
Permissions: 2 (1 sensitive)
Website: github.com/fei-ke/Greyscale
Developer contact: [email protected]

About this APK

Greyscale is an app by 与非 in the Tools category, listed since at least March 2021. It has no native code, so it runs on any Android processor.

It asks for 2 permissions, 1 of them sensitive: write settings.

What's new in v1.2

Fixed FC on some device.

Description

From the listing uploaded by “appupdater”.

Before using this Application, you need to use "adb tools" to grant permission, copy below command and exec it on a PC. adb shell pm grant com.fei_ke.greyscale android.permission.WRITE_SECURE_SETTINGS About "adb tools": https://www.xda-developers.com/install-adb-windows-macos-linux/ Source code: https://github.com/fei-ke/Greyscale

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Dec 28, 2025.
Certificate issued to “YangJinyang” This is the certificate of the Google Play version.

Store checks and file details

Developer signature verified Dec 28, 2025
Validated against Google Play Dec 28, 2025
Signed byCN=YangJinyang, OU=fei-ke.com
Signing certificate (SHA-1)7D:AC:73:01:B5:F3:4F:8D:10:8B:A4:D3:A8:87:66:3B:76:00:54:A1
File MD590030aea04dac984b509c2fb0870fb8d
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

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

Permissions (2)

Greyscale requests 2 permissions, 1 of them sensitive.

Write settings Sensitive android.permission.WRITE_SETTINGS
Write secure settings android.permission.WRITE_SECURE_SETTINGS

Required hardware & features

Basic touch input android.hardware.faketouch

Greyscale APK: questions and answers

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

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the Greyscale APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. After downloading, check that the file's MD5 is 90030aea04dac984b509c2fb0870fb8d.