With the digital piggy bank you has always and everywhere overview over the contents of your piggy banks. Piggy banks can be created, cleared, filled, emptied and slaughtered.
If you leads the piggy bank in the same way as the real piggy banks, you can always inquire about the amount of savings via the Alexa app. So you can decide whether the savings are sufficient for a purchase or whether one still has to save money.
By the possibility to create several piggy banks, it can also be used for the monthly housekeeping. Simply fill in the pigs at the beginning of the month and after every purchase, adjust the pigs according to the expenses.
At the first start and with "help" a card is generated in the Alexa app which displays the most important commands. On my homepage I have listed all possibilities. https://www.masa-developing.de/en/piggybank.html. There is also a blog to get in touch with me for ideas and wishes.