thing is, unless the program is open source and developed by various programmers from various countries, most developers (mostly if it's a one man project) don't find the necessity of translating/providing translations to their apps. even though Qt (and maybe others as well) have provide a very easy way to provide a translation (just wrap all strings to "tr" function in Qt), still I find many Qt apps lack of aforementioned translation support

I'm a developer myself, and also a user of hundreds/thousands/millions(?) of apps, and while English is not my first language, I've never bother to provide translation support for my apps, or using non-English (even if my native language translation is supported) for any apps

but still, I appreciate your effort on this matter, and would gladly help if you need one