Lumosity Mobile joins the top free iPhone apps list this week at No. 1, according to research from AppData. The puzzle app from Lumos Labs, includes dozens of brain workouts designed to improve your attention, and overall brain performance.

Below, we’ve listed the top free iPhone apps of the week. The list links to Inside Network’s research about the individual apps, including historical charts, developer information and download information.

To support Mediabistro’s Media App Summit, we spotlight the top free apps every week–helping our readers discover, enjoy and analyze successful content.

Top Free iPhone Apps of the Week

1. Despicable Me: Minion Rush Despicable Me: Minion Rush
2. Escape If You Can Escape If You Can
3. Candy Crush Saga ® Candy Crush Saga ®
4. What The Riddle? What The Riddle?
5. Monsters University: Catch Archie Monsters University: Catch Archie
6. Vine Vine
7. Lumosity Mobile Lumosity Mobile
8. Instagram Instagram
9. Dumb Ways to Die Dumb Ways to Die
10. Snapchat Snapchat

More detailed stats are available at AppData Pro, Inside Network’s data service supplying performance data, including historical user data, audience demographics, and company information for developers and applications.