Cardabase

Cardabase

Lightweight digital wallet to securely scan, store, and manage loyalty cards offline.

👌 Key Features

• 100% Offline & Private: No tracking, no data collection, and no internet connection required to manage your cards.
• Fast Barcode Scanning: Easily scan physical cards using your device's camera or import them from images.
• Encrypted Storage: Protect your sensitive cards and data with password-secured local encryption.
• Screen Brightness Control: Automatically adjusts your screen brightness when displaying a card for seamless scanning at checkout counters.
• Import & Export: Take full control of your data with easy backup and restore options.
• Modern, Lightweight UI: Fast, clean design optimized for daily use without bloat.

🛡️ Security

More info here

📲 Installation

OR

1. ⬆️ Download latest official release ⬆️.
2. Locate the "cardabase-(version you got).apk" file (usually in the Internal storage/Downloads folder).
3. Allow installing apps from unknown sources.
4. Install it by clicking on the "Install" button.

[!NOTE] F-Droid releases might not be in sync with those from GitHub.

🔜 Coming soon

• add a counter to every card, so when card is clicked, it would add a point, then this could be used to sort by the most used cards
• custom color theme, custom theme builder
• advanced front image editor
• idk, let me know via issues ;)

📌 Permissions

Currently, the app uses these permissions (+ why are they needed) :

• android.permission.WRITE_EXTERNAL_STORAGE - used by the storage system to save the app's data, mandatory
• android.permission.READ_EXTERNAL_STORAGE - used by the storage system to save the app's data, mandatory
• android.permission.MANAGE_EXTERNAL_STORAGE - used by the import and export system, optional
• android.permission.WRITE_SETTINGS - used by the brightness controller, optional
• android.permission.VIBRATE - used to vibrate the device on actions, optional
• android.permission.INTERNET - used to check the latest version of the app and fetch the online changelog, optional
• android.permission.CAMERA - used to read barcodes and take pictures of the cards, optional
• android.permission.READ_MEDIA_IMAGES - used to select images for cards, optional
• android.permission.READ_MEDIA_VISUAL_USER_SELECTED - used to select images for cards, optional
• android.permission.USE_BIOMETRIC - for fingerprint verification if a card password is used, optional

🤝 Thanks to

• Edin Divović
• Wim Van Laer
• All the bug reporters that make the app even better.

🙌 Support

🤝 Contributing

Contact me for more info :). If your phone does not have issues with the app, you can add your device into the Tests file.

🔨 Self-Building

1. git clone the repository,
2. cd cardabase-app into it,
3. flutter pub get to download the dependencies,
4. flutter build apk in Terminal (you can add --split-per-abi if you want to get multiple versions).

[!NOTE] Signing of the app is ON. You need a singature key and a key.properties in the /cardabase-app/android folder or else the build will fail. You can change THIS LINE to debug to sign it with a debug key.

Used versions:

• Flutter: 3.47.2 (or newer, used Flutter version is always added as a submodule, so you can use that one)
• Java: JDK-21
• Gradle: 8.14.2

Note: Java and Gradle versions must be compatible with each other. See this Compatibility Matrix.

You may need to:

• Specify JAVA_HOME in gradle.properties = android/gradle.properties, add a line org.gradle.java.home="C:\\path\\to\\the\\jdk", where you have to specify your path, (<- in case of multiple/no versions or JAVA_HOME environment variable not specified)
• Change Gradle version in gradle-wrapper.properties = android\gradle\wrapper\gradle-wrapper.properties, last line "distributionUrl" (change the "X.X" or "X.X.X" number). (<- in case of different Gradle installation)

📸 Screenshots