Oh my this is a heated discussion, with people throwing around words like "scumbag" even (not that I really mind, free speech and all).
I've stayed out of this discussion because I really don't have much to say, but will now try to share a few thoughts.
1 - Yes there are ads in the free version now (duh!). Yes this is a business decision (duh!).
Spelling out the already obvious...
2 - "Wow, wonderful, this app finally has ads, I'm so happy to see that!" - said no one ever (about any app)
This is really the heart of the issue and there just isn't a way to reconcile that view vs.
vs. "I want an app with the features I need and new features added, bugs fixed, design refreshed, support questions answered, quickly - and free and with no ads".
( and yes, some companies have been able to give away free email apps for a long time, while _maybe_ providing all of the above... Google with Gmail... sort of..., MS with Outlook, Blue Mail / Type Mail... ever wonder how they cover their costs? Congrats to them all )
3 - Re: "sneaky", "all of a sudden", "no warning", etc.
Whenever there is a change there is always a "before" and an "after" - a "but it was" becomes "and now is".
Always. Whenever there is a change (good or bad, an Android app update or someone breaking an arm or winning a lottery).
Time gets divided. I just don't know how to do anything about that.
About "advance notice" -
first, we don't collect or keep the email addresses of our users (if we did, wouldn't *that* be reason to worry? and rightly so?)
second, even if we did, I'm sure many would be unhappy about "receiving spam" (even if for "good" reasons)
third, the design and layout of ads may seem "excessive" and "annoying" to some users, sure nothing wrong with having that opinion... but there are also those who actually don't mind (given that they are "oh no, ads!" to being with, what I wrote above about "said no-one ever").
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Sincerely, Kostya the Scumbag