The follow-up to our “mayorships from your couch” post
Hmm… we posted a follow-up to some of the questions folks were having about our efforts to thwart “cheat” checkins. Looks like the comment didn’t take (having some problems w/ Disqus – stay tuned), so here it is re-posted:
Hey all -
First of all, I can’t tell you how psyched we are to see so many people passionate about foursquare – this is crazy! Second, a few quick updates that didn’t make it into our original blog post.
#1. We are going to be *constantly* tweaking the rules that determine whether a checkin is “accurate” or not. We’re using some GPS, the GPS’ accuracy reading, some elements of your history, a look at your checkin patterns, etc. We’ve already turned the knobs a few times since we launched and we tweaked them again this afternoon. For those who saw lots of “you’re a little far away” messages yesterday, you should be seeing fewer of them today and even fewer of them tomorrow. This is a hard problem us to solve, so bear with us
#2. If you’re using an iPod Touch, iPad or another device that uses Wi-Fi for location, you probably already know that the GPS coordinates that come from Wi-Fi can be a little off sometimes. If you find that you’re seeing flaky GPS fixes, you can always use the mobile website to checkin as you may have better results.
#3. If your phone doesn’t know your location – for example, if you checkin using SMS or the mobile website – you are NOT out of luck. When we don’t have a lat/long, we use a different set of rules – your history, frequency, etc – to determine whether you are the cheating type or not. :)
#4. The API. Our iPhone, Android and Blackberry apps all work on the same public API that everyone else is using – which means everyone is playing by the same rules. Most of our API apps pass along the current lat/long on checkin and we use this for cheat detection. In the case where an API app does not pass along a lat/long, we use other methods (history, frequency, etc) to determine if the checkin is “accurate”.
Anyway, we hope this clears some things up.
- team foursquare