While you are typing in a whatever text editor app, whenever you want to create a data stamp: 1. Just tap the date stamp bubble. Then the system keyboard picker will pop up. 2. Select "H Bubble Date". Then a date and time stamp with the following format will be pasted at once. 2014-05-21 06: 03: 14 pm.
ACHK is the developer of Bubble Date Stamp & Time Stamp that can be found in the Productivity category. The tool was downloaded and installed by over 100 users and its most recent stable release was on Sep 10, 2017. The overall score for this application is 4 on Google Play.
It's free of charge to get the installer of Bubble Date Stamp & Time Stamp, also, you can read users' reviews on Droid Informer. The app works fine on Android 4.3 and higher. The app is completely secure to download.