Just a heads-up, I installed it and signed in with one of my two accounts, but then decided to switch the one free account to my other account. After removing the original account, I wasn't given the option to add in the single free account, only upgrade (I'm guessing there was an assumption in the code that the user would always have one account, and never remove it?). Uninstalling/reinstalling didn't give me the option to re-register, either.
I would gladly support Inbox, but I can't currently link to a specific thread in Inbox, so clicking a notification would just dump you at the inbox of your email account.
Behind the scenes, it looks to me like Inbox is a new GUI on top of the same Gmail backend, so if the thread linking was fixed this certainly looks possible.
Interesting service. I definitely prefer my e-mail notifications to come right from SeaMonkey, but I could see this being useful for those who don't use a separate mail client and prefer to not have their gmail open in a separate tab 24/7.
Sure. A significant amount of people like having their entire inbox locally downloaded (and seemingly more common in the tech industry) but there's also a lot of people that keep it all in the cloud.
I wonder about the example gmail addresses given. Do you own john, paul, george at gmail? I know we should use example.com for URL examples, are there any non-assigned addresses for well-known mail services?
My reasoning was that most people only have one email account and thus would be fine with the free version.
As to why in-app purchase, I wanted people to be able to use it first without payment. In-app purchase has been growing in popularity on the App Stores lately and I think this is why. I also feel it's cleaner not to have two separate versions on the App Store.
But thanks for the feedback, I guess you're right. It's misleading to call it free. I will amend the landing page to make it clearer.
There is no use of IMAP, it's using the Gmail API. It does poll the Gmail API frequently which is currently the recommended method of checking for new email according to Google.
I know at some point they will switch to PubSubHubbub as the preferred way to get notifications.
I currently use Checker Plus for Gmail Chrome extension: https://chrome.google.com/webstore/detail/checker-plus-for-g.... Does the job very well.