Chrono

A modern and powerful clock, alarms, timer and stopwatch app for Android!

Its usable, but still WIP, so you might encounter some bugs. Make sure to test it out thorougly on your device before using it for critical alarms. Feel free to open an issue.

Table of Content

• Features
• Platforms
• Contribute
• Development
• Todo
• Screenshots

Features

• Modern and easy to use interface
• Available in variety of languages

Alarms

• Customizable schedules (Daily, Weekly, Specific week days, Specific dates, Date range)
• Configure melody/ringtone, rising volume and vibrations
• Configure Snooze length, max snoozes and other snooze behaviour
• Option to auto delete dismissed alarms and skip alarms
• Alarm tasks (Math problems, Retype text, Sequence, more to come)
• Dial, spinner and text time pickers
• Filter and sort alarms
• Add tags

Clock

• Customizable clock display
• World clocks with relative time difference
• Search and add cities

Timer

• Support for multiple timers
• Configure melody/ringtone, rising volume and vibrations
• Timer presets
• Option to fullscreen a timer
• Dial and spinner duration pickers
• Filter and sort timers
• Add tags

Stopwatch

• Lap history with lap times and elapsed times
• Lap comparisons (fastest, slowest, average, previous)

Appearance

• Material You icons and themes
• Highly customizable color themes
• Highly customizable style themes
• Other options like animations, nav bar styles, time picker styles

Platforms

Currently, the app is only available for android. I don't have an apple device to develop for iOS, but feel free to contribute if you want iOS support. The alarm and timer features use android-only code, so that will need to be ported. Everything else should mostly work fine.

Contribute

All contributions are welcome, whether creating issues, pull requests or translations.

Issues

Feel free to create issues regarding any issues you might be facing, any improvements or enhancements, or any feature-requests. Try to follow the templates and include as much information as possible in your issues.

Pull Requests

Pull Requests are highly welcome. When contributing to this repository, please first discuss the change you wish to make via an issue. Also, please refer to Effective Dart as a guideline for the coding standards expected from pull requests.

Translations

You can help translate the app into your preferred language using weblate at https://hosted.weblate.org/projects/chrono/.

Current progress:

Spread the word!

If you found the app useful, you can help the project by sharing it with friends and family.

Donate

The amount of time I can given to the app is bound by financial constraints. Donations will really help allow me in giving more and more time to the development of this app.

Our generous patreons

• Potato @potatocinna
• Thorsten @th23x

Development

This app is built using flutter. To start developing:

1. Follow this guide to install flutter and all required tools.
2. Run the app by flutter run --flavor dev. For production builds, use flutter build apk --release --split-per-abi --flavor prod.

Todo

Stuff I would like to do soon™. In no particular order:

• Alarms
  • Alarm reliability testing system
  • Vibration patterns
  • Alternative time picker interfaces
  • Array alarms (alarm that will ring after set interval (10 minutes etc.)
  • More tasks
• Color schemes
  • More prebuilt themes
  • Filter
  • Tags
  • Icon colors
• Theme
  • Icon themes
  • Font themes
  • System fonts
• Timer
  • Alternative duration picker interfaces
• Widgets
  • Clock
  • Clock faces
  • Alarms
  • Timers
  • Stopwatch
  • Customization

Screenshots