There are in-app subscriptions that can be purchased, but plenty of content without them and I cannot recommend this app highly enough.
From our five-star review:
BrainPop.com immediately became one of Ryan's favorite web sites. He loves to learn from videos. With an instructor he has trouble concentrating and paying attention, but show him an educational video he likes and he focuses like a laser.
BrainPop's videos are short animated ones, more than 750 of them, on a large number of topics. The videos are very nicely done, don't feel "school-boring" (they involve a teenager named Tim and his robot friend Moby) and offer a great deal of educational value. The words for important names and terms appear on the screen during their explanation.
I really like that the developers have given Tim a youthful, sort-of-obnoxious sense of humor. In a video about Jane Goodall, Tim and Moby are watching some chimpanzees and Tim says "I don't know. They're kind of creepy. They're so much like...people." Moby talks through a series of beeps that only Tim can understand. (It's sort of like he has a communication issue.)
If you would like to download BrainPop please use the links provided. The cost is the same, but Smart Apps receives a small percentage. Thanks for your support!
Here are the rules for the Good Free App of the Day.
1) Rather than just post a list with links of free apps (some of which may not be very good) we're going to find one free app each day, make sure it's worth downloading, and post the info.
2) The app has to have some substance as free. In other words, it can't be a few seconds of play and then require an in-app purchase.
3) My kids or I have to like it.
4) It can't have ads all over it.