Fossify Clock v1.6.0 - Minimalist Alarm, Stopwatch & World Clock
Fossify Clock is the premier, privacy-focused free and open-source alarm clock, precision stopwatch, multi-timer, and bedside night clock utility developed...
Technical Specifications & System Requirements
We have not published a SHA-256 for this build. Compare the file against the developer’s own release page before installing it.
Software notes
Features
- Reliable Alarms with Math Problem Challenges.
- Precision Lap Stopwatch & Multi-Timers optimized for Android.
Considerations
- Requires storage permissions to manage and access local file directories.
Fossify Clock for Android — Official Open-Source Alarm, Timer & Stopwatch APK
Fossify Clock is the premier, privacy-focused free and open-source alarm clock, precision stopwatch, multi-timer, and bedside night clock utility developed by Naveen Singh (Fossify) for Android smartphones, tablets, and e-ink devices. Created as the official, actively maintained community successor to Simple Clock, Fossify Clock delivers an ultra-fast, reliable timekeeping environment—featuring customizable multi-alarms with gentle wake-up fade-in volume, lap stopwatch tracking, concurrent countdown timers, resizable home screen clock widgets, custom color theming, and an installation size under 5 MB with zero internet permissions and zero commercial advertisements.
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🌟 Core Architecture & Engineering Highlights
Fossify Clock is engineered in native Kotlin to deliver sub-millisecond alarm reliability without battery-draining background bloatware.
Official Successor to Simple Clock
Following the commercial acquisition and monetization of the Simple Mobile Tools suite, the open-source community created Fossify as the official, clean fork. Fossify Clock preserves the beloved minimalist, distraction-free architecture while actively updating compatibility for modern Android 14 and Android 15 exact alarm and foreground notification permissions.
High-Precision Exact Alarm Scheduling Architecture
Never oversleep due to aggressive Android battery optimizations. Fossify Clock utilizes Android's native SCHEDULE_EXACT_ALARM and USE_EXACT_ALARM APIs, ensuring that your morning alarms trigger at the exact second even when your device enters deep Doze power-saving states.
100% Offline Architecture & Absolute Privacy Guarantee
Fossify Clock declares ZERO internet permissions in its package manifest. Your daily wake-up routines, alarm schedules, and timer presets remain completely private on your device, free from advertising trackers and corporate telemetry.
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⚙️ Key Capabilities & Workflow Features
Fossify Clock delivers an exhaustive suite of alarm, stopwatch, and timer tools.
1. Reliable Multi-Alarms with Gentle Wake-Up Fade-In
Configure custom recurring alarms for workdays, weekends, or specific dates. Enable Gentle Wake-Up to gradually increase alarm volume over 1 to 10 minutes, accompanied by custom ringtone melodies or gentle vibration patterns.
2. Multi-Timer Management & Background Countdown
Run multiple concurrent countdown timers simultaneously for cooking, workouts, and productivity sessions, with custom timer labels and completion alarm chimes.
3. Millisecond Precision Stopwatch & Lap Recorder
Track race times, workout sets, and tasks with precision millisecond accuracy. Record split lap times and copy or share lap records with a single tap.
4. Customizable Home Screen Widgets & Bedside Clock Mode
Add resizable Analog and Digital clock widgets to your home screen with customizable typography and transparency, or activate Bedside Night Clock Mode to display a subtle, battery-efficient time display on OLED screens.
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📊 Comprehensive Head-to-Head Comparison Matrix
| Evaluation Dimension | Fossify Clock (FileCobra) | Simple Clock (Legacy) | Timely (Discontinued) |
|---|---|---|---|
| Maintenance Status | Actively Maintained FOSS | Discontinued / Sold | Discontinued |
| Concurrent Multi-Timers | Yes (Unlimited Timers) | Multi-Timers | Single Timer |
| Amoled Black Theming | Pure Black 000000 Canvas | Dark Theme | Beautiful Animated |
| Home Screen Clock Widgets | Analog & Digital Widgets | Basic Widgets | Discontinued |
| Offline Privacy Shield | Zero Network Access | Network Permissions | Cloud Dependent |
| License Type | GNU GPLv3 (100% Free FOSS) | Proprietary | Proprietary |
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📋 Technical Hardware & System Requirements
Fossify Clock is exceptionally lightweight and compatible with all Android devices:
| Hardware Component | Minimum System Requirement | Recommended Performance Spec |
|---|---|---|
| Operating System | Android 6.0 (Marshmallow) or higher | Android 11 / 12 / 13 / 14 / 15 |
| Processor (CPU) | ARMv7 / ARM64 / x86 / x86_64 Processor | Any Modern Mobile Processor |
| System Memory (RAM) | 512 MB RAM | 1 GB+ RAM |
| Storage Space | 5 MB free disk space | High-Speed Internal Storage |
| Display Support | Standard Mobile Screen | OLED / AMOLED Display for Night Clock Mode |
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🛠️ Step-by-Step Installation & Quick Setup Guide
Follow this guide to install and configure alarms with Fossify Clock on Android:
1. Downloading and Installing Fossify Clock
- Download the official verified Fossify Clock APK package (
fossify-clock-v1.x.x.apk) from FileCobra. - Tap the file to complete installation and open Fossify Clock.
2. Setting Up Alarms & Gentle Wake-Up
- Tap the Alarm tab, tap "+", set your wake-up time, select recurring days, and configure Volume Fade-In.
3. Adding Clock Widgets to Home Screen
- Long-press your phone's home screen, select Widgets > Fossify Clock, and choose your favorite digital or analog widget!
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🔒 Security, Privacy & Open-Source Integrity Analysis
Fossify Clock adheres to the highest open-source privacy standards:
- 100% Free & Open Source: Licensed under GNU GPLv3 with full public source code inspection on GitHub.
- Zero Network Code: Contains zero internet permissions; mathematically impossible to transmit user data.
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❓ Frequently Asked Questions (FAQ)
Will my alarm still go off if my phone is in deep sleep (Doze mode)?
Yes! Fossify Clock utilizes Android's native exact alarm scheduling APIs, ensuring your alarm rings on time even in deep battery-saving states.
Can I run multiple countdown timers at the same time in Fossify Clock?
Yes! You can create and run multiple concurrent countdown timers simultaneously with custom labels and alarm tones.
Does Fossify Clock have access to the internet?
No! Fossify Clock contains zero network permissions and operates 100% offline.
Fossify Clock UI & Interface Screenshots
How to Install & Verify Fossify Clock
Download the official verified APK file directly to your device.
Enable "Install Unknown Apps" in your Android Settings if prompted.
Tap the downloaded APK notification to install and launch the app.
Fossify Clock Version History & Build Numbers
Every Fossify Clock build FileCobra has mirrored, newest first. Match the build number against the copy you already have to confirm whether you are up to date.
- Added custom math challenge alarm dismissal
- Fixed timer background ring volume
- Enhanced Material You dynamic clock widget styling
- Faster alarm time picker
- Added gradual volume increase crescendo
- Dark theme UI improvements
- Milestone stable release with full offline alarm and timer engine
Frequently Asked Questions & Verification Guide
Is Fossify Clock free and open source?
Yes. Fossify Clock is completely free and open-source software. You can download and use it at no cost, and its source code is publicly available.
Will my alarm still go off if my phone is in deep sleep (Doze mode)?
Yes! Fossify Clock utilizes Android's native exact alarm scheduling APIs, ensuring your alarm rings on time even in deep battery-saving states.
Can I run multiple countdown timers at the same time in Fossify Clock?
Yes! You can create and run multiple concurrent countdown timers simultaneously with custom labels and alarm tones.
Does Fossify Clock have access to the internet?
No! Fossify Clock contains zero network permissions and operates 100% offline.