Ai Mai! Moe Can Change!

Both series have cute and simple story lines that are likely to appeal to the same audience. 

Both of these Anime revolve around product placement. PES is about Toyota's cars while the other is about a mobile phone application that is available over in Japan. 

If what your looking for is another "moe" title then the other may be what you're looking for. Both use bright colors and intricate designs. You've even got your furry girls in both too. 

Let's sell product through a cute little story. It doesn't matter if the people watching realize it is advertisement of sorts. What matters is that they enjoy it. Pretty much this. 

Both of these Anime have similar styles. They also take something that seems normal and turns it into something bigger. They're also both funny, in their own corny ways. 

If I gave away how they were similar I think I would provide spoilers for Ai Mai! Moe Can Change!? At least... the main reason. Both series are cute in their own way and they deal with "fan service cliches", one being more modern and more in line with the times as it has added things in it.