explaingit

amrdoh/clockmaster

Analysis updated 2026-06-24

102KotlinAudience · generalComplexity · 2/5LicenseSetup · easy

TLDR

Third-party Android clock app written in Kotlin with a Material Expressive visual style, distributed as a GitHub release APK rather than through the Play Store.

Mindmap

mindmap
  root((ClockMaster))
    Inputs
      Android device
      APK download
    Outputs
      Clock UI
      Screenshots
    Use Cases
      Replace stock clock
      Material Expressive demo
      Sideload APK
    Tech Stack
      Kotlin
      Android
      Material Design
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Code map

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What do people build with it?

USE CASE 1

Sideload the ClockMaster APK from the Releases page as an alternative to the stock Android clock.

USE CASE 2

Study a small Material Expressive Android app written in Kotlin as a starting reference.

USE CASE 3

Fork the repo to add or change clock features under the Apache 2.0 license.

USE CASE 4

Open a GitHub issue with feature questions because the README is screenshot-only.

What is it built with?

KotlinAndroidMaterial Design

How does it compare?

amrdoh/clockmasterharmony-on-android/hoaomarahmedx14/my-android-playground
Stars10212130
LanguageKotlinKotlinKotlin
Setup difficultyeasyhardeasy
Complexity2/55/52/5
Audiencegeneraldeveloperdeveloper

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · easy Time to first run · 5min

README is screenshot-only, feature details require reading the source or release notes.

Apache 2.0 license, very permissive, keep the notices if you redistribute.

In plain English

ClockMaster is an Android clock app written in Kotlin. The repository description calls it a Material Expressive clock app, which refers to a visual style from Google's Material Design system that uses bolder shapes, larger type, and lively color palettes. The README itself is very sparse: it shows the app icon, a tagline that says the clock app looks great and does more, and six screenshots of the app in use, with no detailed feature list or written description of what is inside. Because the README does not spell out features, the most that can be said with confidence is that it is a third-party clock app for Android phones, distributed as a downloadable release from GitHub. The link near the top points to the project's Releases page, which is the usual place to grab the installable APK file directly, rather than installing it through the Google Play Store. The project is licensed under the Apache License 2.0, which is a permissive open source license that lets other people read, modify, and redistribute the code as long as they keep the license notices. For questions or feedback the author asks people to open a GitHub issue or send email to the address listed in the contact section. In short, this is a small open source Android clock app whose README leans almost entirely on screenshots rather than a written explanation of features. To know exactly what it offers, such as alarms, timers, stopwatches, world clocks, or theme options, a reader would need to look at the screenshots, the release notes, or the source code rather than the README.

Copy-paste prompts

Prompt 1
Build ClockMaster from source in Android Studio and install it on a Pixel emulator. List every step.
Prompt 2
Read the ClockMaster Kotlin sources and write a feature list, since the README only shows screenshots.
Prompt 3
Replace the Material Expressive color palette in ClockMaster with a high-contrast dark scheme. Show the resource edits.
Prompt 4
Compare ClockMaster to the AOSP DeskClock app in code size, feature set, and Material 3 usage.
Prompt 5
Add a world-clock screen to ClockMaster that follows the existing Material Expressive style. Sketch the Compose code.

Frequently asked questions

What is clockmaster?

Third-party Android clock app written in Kotlin with a Material Expressive visual style, distributed as a GitHub release APK rather than through the Play Store.

What language is clockmaster written in?

Mainly Kotlin. The stack also includes Kotlin, Android, Material Design.

What license does clockmaster use?

Apache 2.0 license, very permissive, keep the notices if you redistribute.

How hard is clockmaster to set up?

Setup difficulty is rated easy, with roughly 5min to a first successful run.

Who is clockmaster for?

Mainly general.

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