calscan.koirala.xyz

github repo

Scan event flyers and add them to your calendar... FAST!

CalScan is a privacy-focused cross-platform mobile app to directly convert images of posters, flyers and announcements into a calendar event.

Coming to Google Play and App Stores soon (...I hope so!!!!).

Downloads

The Universal APK works for all android devices but comes with a larger size. For most modern phone the 64-bit ARM APK is the one you need.

Download Universal APK (~86.4MB).
Download the SHA1 File Checksum

Download 64-bit ARM APK (Modern Devices APK ~25.6MB).
Download the SHA1 File Checksum

Download 32-bit ARM APK (Legacy Devices APK ~32.5MB).
Download the SHA1 File Checksum

Download x86_64 APK (Computers and Emulators APK ~32.9MB).
Download the SHA1 File Checksum

Features

• Scan from your camera or gallery
• Crop the flyer before processing
• Extract key event details with OCR
• Review and edit the title, location, date, and time before saving
• Pick a default calendar and reminder settings
• Add events directly to your device calendar
• Export the event as an .ics file for sharing or backup
• No internet connection
• No server-side processing
• No third-party API dependency
• No LLM integration

Screenshots

Tech stack

• Flutter: https://github.com/flutter/flutter
• Google ML Kit Text Recognition: https://github.com/flutter-ml/google_ml_kit_flutter
• Image Picker: https://github.com/flutter/packages/tree/main/packages/image_picker/image_picker
• Image Cropping: https://github.com/hnvn/flutter_image_cropper
• Device Calendar integration: https://github.com/builttoroam/device_calendar
• Share Plus: https://github.com/fluttercommunity/plus_plugins/tree/main/packages/share_plus/share_plus
• Path Provider: https://github.com/flutter/packages/tree/main/packages/path_provider/path_provider
• Shared Preferences: https://github.com/flutter/packages/tree/main/packages/shared_preferences/shared_preferences
• Timezone: https://github.com/srawlins/timezone
• File Picker: https://github.com/miguelpruivo/flutter_file_picker
• iCalendar support: https://github.com/Enough-Software/enough_icalendar
• Open File X: https://github.com/javaherisaber/open_filex
• Date/time parsing (Chrono): https://github.com/g-30/chrono_dart

Contribution and Contact

• Any contribution or feedback is deeply appreciated. (I am still learning Flutter)
• Email: anaya [at] koirala [dot] xyz
• Website: koirala.xyz

TODO

• Improve the OCR and Classification Heuristics
• Create a comprehensive test suite for all kinds of flyers
• User opt-in LLM integration for complex flyers (User provides the API Key)
• Improve overall look and feel, while keeping a minimalist design