you can find my early post,it's all about bug report,some are low-level bugs,which make people feel that the software has not been tested at all,although they are solved today.
I will continue to discover bugs.
It does have a beta version, you should learn to program before saying a program/app is not "profesional" because it has minor bugs that are not always easy to spot. For example, the bug you reported in this thread, i NEVER used the shrink/increase buttons so i would have never noticed the bug, and i have been using this app for years.
Low level bugs are the opposite of what you said, low level bugs are the ones that are usually hidden and requires time to find, that doesnt make the app look not tested. Big bugs like... i dont know, if the app crashed creating a new file all the time and it wasnt fixed fast, that would be an example of a non tested or maintained app.
And yeah, just checked your other posts... little tip, just report the bugs without sounding like an entitled ass, all the bugs you reported are device specific that require precise steps to reproduce, aka they are hard to spot, if it wasnt fixed until you found them why do you think it is? because no one else found them, so yey, thanks, your reports helped fix them, no need to trash talk about the quality of the app because no one found that bug before you. And again, the app only has one person behind it's programing.