Ask Pokelabo to add Local Notifications for Atk MP, Stamina and Events.
How that works:
Every time you spend Stamina or Atk MP, the code trigger a Local Notification event on iOS with the time left to replenish the status, to warn about when it is full again. If had any setup previously, it deletes before setting the new one.
I've spent all my stamina, and on feel says "1:46:22 to replenish". With this time, the app sets a Local Notification of current time + time to replenish. When that time arrives, the iOS will warn (popup, banner, etc depending on the 'Settings->Notifications' config) about it. The same with Atk MP.
And for events, since the times are on PST, i always end up confusing with my GMT (-3) and end missing the attacks. So for events, just put a Notification of "Dark Event started!" for when the event starts, so we can go questing to make dark monster shows up.
And it Is possible, even with a HTML/JS game, it's just a matter of creating an abstract layer that makes JS 'talks' with Obj-C code (which will be the one setting up the notifications).
How it works:
More achievements, like some number of fusions, number of fusion+, captures % on quests (i have howlfang and wyrms 100%, dreat at 79% and does not have any reward for that), number of summons, etc.
And not only gives -secs on stamina regen but maybe increase exp/gold gain by some % on higher achievements? Similar to EE, when you get a achievement 'set', you get some bonus.