adding the app descriptions

fastlane/metadata/android/en-US/full_description.txt

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+A great way to stay in touch with your relatives, by sending both SMS and MMS messages. The app properly handles group messaging too, just like blocking numbers from Android 7+.
+
+It offers many date formats to choose from, to make you feel comfortable at using it. You can toggle between 12 and 24 hours time format too.
+
+It has a really tiny app size compared to the competition, making it really fast to download
+
+The internet access is sadly required for sending MMS attachments. Not being able to send MMS would be a really huge disadvantage compared to other apps, so we decided to go this way. 
+
+However, as usually, there are no ads, tracking or analytics whatsoever, the internet is used only for sending MMS.
+
+It comes with material design and dark theme by default, provides great user experience for easy usage.
+
+Contains no ads or unnecessary permissions. It is fully opensource, provides customizable colors.
+
+<b>Check out the full suite of Simple Tools here:</b>
+https://www.simplemobiletools.com
+
+<b>Facebook:</b>
+https://www.facebook.com/simplemobiletools
+
+<b>Reddit:</b>
+https://www.reddit.com/r/SimpleMobileTools

fastlane/metadata/android/en-US/short_description.txt

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+An easy and quick way of managing SMS and MMS messages without ads.

fastlane/metadata/android/en-US/title.txt

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+Simple SMS Messenger - Manage messages easily