Stopwatch Timer

Simple Stopwatch Timer application

HKK Apps · com.hkk.st

5.0 out of 5 (1 rating) 500K+ downloads v1.2.0 162.6 KB Android 4.0+ PEGI 3 · Everyone

Download APK 162.6 KB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v1.2.0 (5)
Updated: Jun 24, 2026 (3 months ago)
APK size: 162.6 KB
Requires: Android 4.0+ (API 14)
CPU support: Any (no native code)
Category: Tools (app)
Listed since: Aug 9, 2020 (at least)
Permissions: 5 (1 sensitive)
Developer contact: [email protected]

About this APK

Stopwatch Timer is an app by HKK Apps in the Tools category, listed since at least August 2020. It has no native code, so it runs on any Android processor.

It asks for 5 permissions, 1 of them sensitive: modify shared storage.

What's new in v1.2.0

- Modify vibration sound - App optimization

Description

From the listing uploaded by “appupdater”.

Simple Stopwatch Timer application - Lab Share

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Jun 24, 2026.
Certificate issued to “HyunKiKo” This is the certificate of the Google Play version.

Store checks and file details

Developer signature verified Jun 24, 2026
Validated against Google Play Jun 24, 2026
Signed byCN=HyunKiKo
Signing certificate (SHA-1)EA:70:60:7E:64:F6:B9:F4:C8:49:70:A7:F3:81:50:06:0F:98:81:97
File MD5f20a1054c109f68cb20a14436fac1ba5
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 (5)

Stopwatch Timer requests 5 permissions, 1 of them sensitive.

Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
Control vibration android.permission.VIBRATE
Full network access android.permission.INTERNET
View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch
Portrait screen android.hardware.screen.portrait
Wi-Fi android.hardware.wifi

Stopwatch Timer 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 Stopwatch Timer 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 f20a1054c109f68cb20a14436fac1ba5.