Material Master

Materials selector for rubber sealing

GMORS- Ge Mao Rubber Industrial Co., Ltd. · tw.com.masterhand.materialmaster

Not rated yet 1K+ downloads v5.0.2 14.3 MB Android 6.0+ PEGI 3 · Everyone

Download APK 14.3 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v5.0.2 (7)
Updated: Oct 2, 2026 (7 days ago)
APK size: 14.3 MB
Requires: Android 6.0+ (API 23)
CPU support: x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
Category: Tools (app)
Listed since: Dec 27, 2022 (at least)
Permissions: 2
Website: gmors.com
Developer contact: [email protected]

About this APK

Material Master is an app by GMORS- Ge Mao Rubber Industrial Co., Ltd. in the Tools category, listed since at least December 2022. It includes native code for x86 32-bit, x86 64-bit, ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

Since version 3.0, the minimum Android version rose from 4.2 to 6.0. It asks for 2 permissions, none of them sensitive. Compared with version 4.0, it adds 1 new permission (“Full network access”) and drops 1 (“Modify shared storage”).

What's new in v5.0.2

Regular maintenance and performance improvements.

Description

From the listing uploaded by “appupdater”.

GMORS Material Master give you the materials recommendation for your O-Ring application, based on the working temperature and medium of working environment. We provide thousand kinds of environment condition for compatibility evaluation. In addition, GMORS provide certified rubber compounds for various international standards, such as NSF61 ,WRAS ,ACS, KTW ,W-270 ,DIN EN 549,UL 157,API 6A,NORSOK M-710,TOTAL EP PVV 142 and NACE TM0297. Please email us for further information.

Version history

3 versions are listed, going back to v3.0. Since v5.0.2 it requires Android 6.0+.

v5.0.2 LATEST Oct 2, 2026 14.3 MB TRUSTED v4.0 Jun 24, 2026 3.3 MB TRUSTED v3.0 Jun 4, 2024 3.4 MB TRUSTED

All 3 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Oct 2, 2026.
Certificate issued to “MasterHand” This is the certificate of the Google Play version.
Same certificate as the 2 other versions checked

Store checks and file details

Developer signature verified Oct 2, 2026
Validated against Google Play Oct 2, 2026
Signed byCN=MasterHand, OU=MasterHand, O=MasterHand, L=Taipei, ST=TW, C=886
Signing certificate (SHA-1)72:8D:84:BB:EC:3E:75:8A:40:F2:FD:82:4F:38:B9:BB:2B:23:36:56
File MD590163a385bc56c38202f68f6602940a4
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 (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (2)

Material Master requests 2 permissions, none of them sensitive.

Full network access android.permission.INTERNET
Internal broadcast protection (app-defined) tw.com.masterhand.materialmaster.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

Required hardware & features

Basic touch input android.hardware.faketouch

Material Master APK: questions and answers

Is there a version of Material Master for older Android phones?

The current version needs Android 6.0 or later. Version 4.0 is the newest listed build that installs on Android 4.2 and later. Get version 4.0 · All versions

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 Material Master 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. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is 90163a385bc56c38202f68f6602940a4.