Fraser Speirs Cocoa and Photos

Where The Numbers Come From

A few people emailed to ask how I knew how many users Exposure has. The numbers come from Flickr.

When you use Flickr’s API, your app is assigned an API key and every request has to include that key. Flickr provides certain stats to developers about the activity that’s happening for each key and one of these stats is the number of accounts that have authorised that particular API Key to access their account.

I don’t know what the breakdown of free vs. paid versions of Exposure is, since both versions use the same API Key.

I bet you wish you would have used distinct keys (one for each version of the app) now!

The keys are generated based on your flickr username.

Hence, it was not an option I believe

Adrian, the keys are owned by a particular Flickr user but one user can have multiple keys (I have about 10).

Isn’t there some way on the App Store to check the number of purchases of an app?

Ha, guess I should have kept my mouth shut.

I believe I’m thinking of wordpress or some other api key related thing.

Congrats on the Pick of the Week award for Exposure! Based on the reviews in the store, sounds like people are really digging it (don’t have a touch device to try it myself, sadly). The main complaint seems to be that you haven’t been able to add all of flickr’s myriad of features

i’m really enjoying exposure, and really looking forward to export touch.

there is an intense demand for a decent iphone based flickr uploader. the iphone’s existing upload by email capabilities are very limited - no EXIF, limited size etc. etc.

i think a decent export app will be be even more popular than a decent browsing app.