The Play Store for Android has certainly a wide range of applications to choose from, but it can happen to not find exactly what you want, and if it wasn’t done yet … just roll up your sleeves.
The following apps have been developed by me and are available on Google Play Store, for the series:
If you want something done, do it yourself
Comical sounds, always at hand and at wrist
Performs the spelling of input text, even for complex combinations of characters