Overflow tutorial
With Overflow you can create lists. Not normal lists — well, yes, also normal lists — but, in particular, complex data structures. An example may be finances: your bank account, the amount of your investment or the value of the properties you own. You can see the total value or access various subcategories to analyze the entries in detail, keeping them divided by topic.
Or prepare Christmas gift lists, with related prices, or the checklist of movies to watch, or books to read. And totals can be summed up or calculated separately.
You can also plan a trip setting a budget, and checking at any time whether you're respecting it or not.
This is a quick tutorial of the app.