But only TiVo knows the numbers. If they know that 500,000 people downloaded their iOS app and they know that 250,000 people use it regularly... and they also know that 100,000 people downloaded the Android app and that 50,000 people use it regularly... then those are the only numbers that matter to them. Total marketshare is meaningless. You go to where your actual users are. EDIT: Looking at total reviews on both on the google play store and apple app store... Now reviews obviously aren't downloads or actual usage stats, but they should paint a general picture. Google Play Phone Version: 1,203 total reviews Tablet Version: 264 reviews Apple App Store Universal (iPhone + iPad) 4,956 total reviews Going by reviews I think it's fairly safe to say that iOS is roughly 3 times as popular amongst TiVo users. Going beyond that, it possible that the numbers are even further off, because I'd imagine that a very small percentage of users actually bother to review most apps, and the kind of engaged and concerned person who would is way more likely to leave separate reviews for both the phone and tablet versions of the Android app, slightly inflating the number when you add both together. Probably more notable though is that most of 264 android tablet reviews are 1 star reviews. The iOS app has a 4 star average, which, in the persnickety world of iOS app reviews is actually quite high. People who like an app and have no issues are way less likely to bother reviewing it. So it's pretty safe to guess that an overall larger percentage of android TiVo app users bothered to review it, throwing the numbers off even more.