iMoney Manager

Manage your expenses and earnings in a clean and simple way.
You can add a description, a date, a category, a location, attachments etc. for each expense you add.
There is also a "data" page where there is a summary for each category and for each month.
You can add widgets to your home screen for keeping track of your expenses directly on the home screen of your iPhone or iPad.
It's made specifically for Apple platforms. It supports iOS and iPadOS and soon it will come to the Mac and Apple Watch!

iMoney Manager has a pro version that you can upgrade to. It's available through one time purchase or with a subscription.
Terms of service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: http://danxnu.altervista.org/iMoneyManager/privacy.html