Awesome
<div align="center"> <img width="200" src="app/src/main/res/mipmap-xxxhdpi/ic_launcher_foreground.png" alt="OpenCalc" align="center">OpenCalc
A simple and beautiful calculator for Android.
<a href="https://github.com/Darkempire78/OpenCalc/releases/latest"> <img alt="Latest release" src="https://img.shields.io/github/v/release/Darkempire78/OpenCalc.svg?logo=github&style=for-the-badge"> </a> <a href="https://github.com/Darkempire78/OpenCalc/releases"> <img alt="Releases" src="https://img.shields.io/github/downloads/Darkempire78/OpenCalc/total?color=blue&label=downloads&style=for-the-badge"> </a> <a href="LICENSE"> <img alt="License: GPL v3" src="https://img.shields.io/badge/License-GPLv3-blue.svg?style=for-the-badge"> </a> <a href="https://discord.com/invite/sPvJmY7mcV"> <img alt="Discord" src="https://img.shields.io/discord/831524351311609907?color=%237289DA&label=DISCORD&style=for-the-badge"> </a> <br> <a href="https://play.google.com/store/apps/details?id=com.darkempire78.opencalculator"> <img alt="Get it on Google Play" src="https://play.google.com/intl/en_us/badges/static/images/badges/en_badge_web_generic.png" height="100"> </a> <a href="https://f-droid.org/en/packages/com.darkempire78.opencalculator"> <img alt="Get it on F-Droid" src="https://fdroid.gitlab.io/artwork/badge/get-it-on.png" height="100"> </a> <a href="https://github.com/Darkempire78/OpenCalc/releases/latest"> <img alt="Get it on GitHub" src="https://raw.githubusercontent.com/deckerst/common/main/assets/get-it-on-github.png" height="100"> </a> <br> <div align="left">📖 Features
- Lightweight (APK ~2MB)
- No unnecessary permissions
- Dark, Light, Amoled and Material You theme
- Scientific mode
- History
- Portrait and landscape orientation
- Quick Settings Tile
- More...
⚠️ Requirements
- Android 5.0+
📷 Screenshots
<img src="fastlane/metadata/android/en-US/images/phoneScreenshots/Light Theme 1.png" width="15%"/> <img src="fastlane/metadata/android/en-US/images/phoneScreenshots/Light Theme 2.png" width="15%"/> <img src="fastlane/metadata/android/en-US/images/phoneScreenshots/Dark Theme 1.png" width="15%"/> <img src="fastlane/metadata/android/en-US/images/phoneScreenshots/Dark Theme 2.png" width="15%"/> <img src="fastlane/metadata/android/en-US/images/phoneScreenshots/Amoled Theme 1.png" width="15%"/> <img src="fastlane/metadata/android/en-US/images/phoneScreenshots/Amoled Theme 2.png" width="15%"/>☕ Support
Support OpenCalc development by donating money. Thank you very much for your help! ❤️
<img src="https://img.shields.io/badge/sponsor-30363D?style=for-the-badge&logo=GitHub-Sponsors&logoColor=#EA4AAA" alt="Sponsor the project on GitHub" height="40"> <img src="https://img.shields.io/badge/PayPal-00457C?style=for-the-badge&logo=paypal&logoColor=white" alt="Donate with PayPal" height="40"> <img src="https://img.shields.io/badge/Buy%20Me%20a%20Coffee-ffdd00?style=for-the-badge&logo=buy-me-a-coffee&logoColor=black" alt="Donate with buymeacoffee" height="40">
💬 Discord
Join the Discord server!
🔨 Contributing
Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.
Please make sure to update tests as appropriate.
🌎 Translations
You can help translate OpenCalc on Hosted Weblate.
<h3>Translation status</h3> <br> <a href="https://hosted.weblate.org/engage/opencalc/"> <img src="https://hosted.weblate.org/widget/opencalc/horizontal-auto.svg" alt="Translation status" /> </a>📜 License
This project is licensed under GPLv3
❔ Most Asked Questions
Why OpenCalc has it's own algebra system and doesn't use already existing algebra system like mXparser?
OpenCalc doesn't use mXparser anymore since the v2.0.0 for two main reasons:
- reason is that it allows much more freedom and flexibility. mXparser has many known problems, either with accuracy or with features not present. Creating your own implementation allows you to control everything.
- reason is that it's lighter to use your own implementation (mXparser has around 3 times bigger size than OpenCalc).