Providing you with a list of the apps you bought that you can buy is one of the things that Play Store does not do. You can see a list of all the applications you have already installed, but you can only sort them by install date or alphabetically. Fortunately, a new application is available to help you solve this problem.

Purchased apps, from developer Asapha Halifa, give you the same list but with much more powerful display options. Sort by price (in descending order) and you will be able to easily view all the applications for which you have spent money. Touching them will take you directly to the Play Store so you can reinstall them later. This is especially useful for games you have forgotten despite spending a few dollars.

The application is pretty basic in design and uses dated styles in search of materials, but it does the job. In the sliding menu, the total spend tells you how much you spend on apps and games, as well as categories that allow you to see specific types of apps. There are also options to change the format of the currency and date if you need it.

Overall, it's a really cool app that fulfills its role well. You can even export and share your list with others. This shows ads, but they are not too intrusive. Unless you're like Rita and you keep all the receipt emails from the Play Store that you received for easy sorting and searching (yeah, me neither), this app could be really helpful.

One thing that is uncertain is whether the apps you've installed during a sale will appear at the current sale price or full price, but I contacted the developer to find out. Try it by installing it through the Play Store or by downloading it from APK Mirror.

Purchased apps (restore your paid apps)
Purchased apps (restore your paid apps)