Melody

Update: They fell into the ad bomb category. Sadly, I'm uninstalling. Original: This is by far the best collection of brain games I've found. It has a ton of different games to choose from, and absolutely no paywall. It's all free! There are some ads but they're noninvasive and few and far between. I highly recommend it. Edited

A Google user

I downloaded this game because of the developers responses to the comments, but after playing i really like the game as well. Lots of games, challenging but not impossible, and helps you focus on your weak areas. Everybody complaining about the ads are ridiculous, they don't interrupt the game play at all. For the only real free brain training game I've found, it's awesome.

A Google user

Not only does it have a puzzle to solve (good) it was under a timer (pressure...Ok) but the way you answer wasn't intuitive, so most of the time I did very badly. I feel like I've got a cognitive disorder after playing this for 15 minutes. I can't wrap my mind around swipe left/swipe right to answer when the default right/left swiping is switching around at the same time. I think they did a good job making this app but personally it frustrated me very much.

john cena (KingaMoor)

This is by far the Best Free To Play Brain Mental Training App on Google Play. The game comes with auto save and don't require a Sign In. It can also be played without Internet. The app contain a total of 60 playable training games. There are 4 different categories (Attention, Memory, Calculation, Analysis) with 15 different brain workout games. The content only have 3 game options.1st is Training Level which give you 4 random work out from each category once a day. It keep stats on what you are great and weak on. 2nd is Challenge Level which give you two random brain exercise and challenges to improve yourself in that category. And the 3rd is Category which allow you to play all games in Standard Mode (to monitor growth) or Relax Mode (to practice at a certain pace). The game give you information about the brain every time you open the app. It also have ranking to see where you are with peers. Mental does have ads but they don't pop up randomly only after a session is completed. And you can change language (currently 8 different language) The is by far the best F2P Cognitive Brain Training App that lets you develop compare to other brain training apps which having a limited selection to learn unless purchases. This gets a 5/5 essential app that all future cognitive apps should inspire to be. Edited

Alma Mikaliukas

One annoying feature: the application keeps telling me how badly I am doing, after EVERY session. The analysis feature could be available upon request, bit I really don't need to know how I measure in my peer group -- unless it is what I WANT to find out. So far, the app makes me feel like I must compete with perfection. I am not sure I will keep using it, even though the games are fun.