Enpass: https://www.enpass.io/
Started using it because of one time payment and Dropbox sync. They switch to subscription model but I still find it quite usable.
That means energy efficiency rating will change by date, A rated product of last year could be different (could be better or worse) by this year's A rated product. Can't we just use "numbers" instead?
You actually can switch off cellular access of a certain app. You can also use airplane mode while you're using our app. We actually encourage our users to turn on airplane mode while using our app, because we want them to know it absolutely does not use the internet to scan your photos :)
I don't use Sublime Text as an IDE (I have Intellij for that), mainly to edit scripts, large CSV files, as a scratchpad etc. but It's always open and increases my productivity a lot.
Take a look at Enpass (https://www.enpass.io) it has a free desktop app and one off fee for mobile apps. I've been using it for tree or four months and it's been great.
Would trust this service, if I could read the source. I don't know what the plan with MeetFranz is, but since it isn't open source, something tells me that there at some point will be monetization involved. Monetization isn't bad, but it also will at some point cause misalignment between it and the users.