It cannot be compared. In Excel, you can build beautiful spreadsheets, including a cash book. However, the disadvantage of Excel is that errors can quickly creep in. In addition, you always need a computer on hand to fill in your cash book, and your cash book is not directly linked to accounting.
With Kassatellen.nl, it is a different story. With Kassatellen.nl, you are assured of a flawless registration of your cash funds. The only thing you still need to do is count and fill it in correctly.