I would love to have the ability to search for transactions by the date they were entered, not the transaction date. This would be helpful when reviewing recent changes to envelopes....especially when more than one person works on the budget.
It sounds like you'd like to be able to search and sort your transactions by the date they were actually entered into Goodbudget rather than just by the date of the transaction itself. Thanks for sharing your request and why this would be helpful to you -- I've added it to our features tracker for future consideration.
I haven't looked at the mobile apps, but the web version does allow you to search by date if you click the "Advanced" link next to the Search button. There are several other fields you can search on as well, such as Account, Tag, Envelope, and Type. Actually, I just looked at the Android version and there is an Advanced option there as well, but it is not quite as comprehensive as the web version. However, it does support date ranges.