PRO
+ Doesn't require Internet access - leakage of confidential data is excluded.
+ No ads.
+ The same functionality as FREE. Changes are tested on version FREE and after 1-2 weeks appear to PRO.
+ Icon of PRO app is darker than FREE.

How to pay?
Click on the price at the top of the page, choose "payment method". The easiest way to pay is through phone (Your mobile operator). Click "Buy". Done.

For details see "Accepted payment methods":
https://support.google.com/googleplay/answer/2651410?co=GENIE.CountryCode%3DUnited+States&hl=en

How to copy data from FREE version?
1. In version FREE. Create a Backup: "Notepad - menu - three points - Settings - Backup. Create / Restore - Click here to create a backup". Backup will appear in the list below.
Really backup file will be created in sd card . The file extansion is ".nsafe". You can find it in the Backup folder. The path to the folder: "Notepad - menus - three points - Settings - Backup. Create / Restore - Backup folder".

2. Install the PRO version. By default PRO has the same Backup folder as FREE version.
If not then copy the file ".nsafe" to the PRO backup folder or change the path to the folder. The file will appear in the list. Click on it in the list and in the menu that appears, select "Restore". Done.

Please report any questions, errors, suggestions: vstar.android@gmail.com