This chart, which shows android only, is interesting because it gives app developer a hint about which countries are most likely to be a successful market for them.
At Everplaces we spend a huge amount of time looking into which markets download which kind of apps. When you dig a bit further into these number for example, you will find that the far majority of the apps downloaded in Korea are games. So if you’re not a game developer perhaps this isn’t so great for you after all.
The concept of national culture do that certain people are more into certain products. For us at Everplaces Germany is our second biggest market. I think that’s because Everplaces is about organising places you’d like to remember, and the Germans, in general, like productivity tools that structure and organise. In the future I’d love to do more stuff in Japan which has a similar culture, but since the Japanese people tend to only download apps that are in Japanese we’re not quite there yet.
We also look at the download ratios and mobile penetration rates and hold them up against our own amount of users in a country to determine how urgent it is for us to start doing localization. For example, our third biggest market is Brazil, so maybe we should have a Portugese language version? So this chart is basic but a good starting point.
PS: Downloads are per capita, not totals.
Source. Insidemobileapps article