1. Before Christmas.
2. Hesitate to give concrete dates given lag time of Apple app store submissions, but this feature is well underway, and is highest priority. Soon.
3. The web app will be a beta and an opt-in; you can choose to go to the new web app if you like. No concrete time on how long before change is permanent, but I empathize with those that would like to continue through Step in summer 2015 without a change in things, and I don't think that is an unreasonable expectation.
4. Mobile is legendary exclusively, a transition away from modes in general.
Digging a little into why you want questions to stack -- 1. that's what it currently does. 2. The way this feature is set up is that it's a live-adjusting count of questions each day. So if you want to do more than are recommended each day, it will affect what future recommendations are.
I don't see making aspects of the algo adjustable at the moment.
There's a fix for this in the latest release. Notes will be coming to the app in 2015.
a. This is incorrect, both web and app sync questions you've done. You can verify this by doing a few questions in the app and going to
https://med.firecracker.me/dashboard/question_history. b. sync is to push updated content.
The algo on the apps reallllllllly encourage you to answer questions previously known as "study questions"....one's you've flagged but haven't taken yet. So, early on, you're getting study questions you haven't answered before.
Also, the apps work in legendary mode. So if you're in normal on the web, you're going to get the legendary questions you haven't seen.
After you get through the initial unseen questions, the daily recommended questions are much more in line with the web app, just prioritized differently.