Simple Cashbook is ... well a simple yet powerful cashbook app. Without any bells and whistles or unnecessary features. Just name your cashbook, select your currency, and you're all set up. If your device is logged in to iCloud all cashbooks will automatically be synchronized allowing you to seamlessly switch between devices.

* Manage multiple cashbooks
* All currencies supported
* Face / Touch ID protection
* Organize your transactions with categories
* Save notes with your transactions
* Export your cashbooks anytime as PDF
* iCloud sync that just works
* Dark Mode support

By the way:
* Tap the balance to copy it to your clipboard.
* Long tap on a transaction to do the same.