GREG - A Mathematical Puzzle Game To Train Your Brain Skills Icon
Download GREG - A Mathematical Puzzle Game To Train Your Brain Skills

GREG - A Mathematical Puzzle Game To Train Your Brain Skills

Category Price Seller Device
Games $0.99 Marco Torretta iPhone, iPad, iPod

• Apple Best New Games
• #1 Puzzle Game App
• “A puzzle game that will test your speed and math skills, a gameplay mechanic both invigorating and challenging.” - AppAdvice
• “An excellent, fun way to kickstart the grey matter.” - Gamezebo
• “A solid game with nice graphics, good gameplay and a practical learning.” -

• Polished interface. Mentally beneficial and challenging gameplay. What else do you want?
• Extremely addicting and fun game. Who knew that adding numbers could be so exciting!
• Very fun game and it really helps me with my math skills. One of my favorite downloads.
• If you love numbers, this is for you. If not, you will learn to love numbers!
• In no overstated terms, I'm obsessed with the game. I hate phone games. But GREG is inescapable.

Do you think additions are easy?
Challenge yourself and play GREG, a simple mathematical game that will enhance your mental flexibility!
The main purpose of the game is to combine the numbers in the grid to match the given one. The more you go ahead, the more difficult the game will become.

Simple and addictive gameplay, suitable for both quick and long-lasting matches.
The better you play the more points and gold you earn!

Need some help? Use special items and spells to help you in the game!
You can easily get more items by using the gold you earn within the game.

Challenge your friends like never before in an innovative multiplayer mode!
Show your friends who is smarter by defeating them in a game where cleverness, reflexes and strategy combine.
Multiplayer is available only on iPhone 4S or newer.

Climb the leaderboards and prove you are the best player!
And if you feel good enough try to earn all the 35 engaging and unique achievements.

Enjoy GREG on your iPhone and your iPad too, so you can test your mathematical skills in every moment.

All your progress and game stats are synced between all your devices, so you don’t have to worry about having different data on your iPhone and your iPad.

• Follow @playGREG on Twitter for the latest!
• Have a problem? Want to give us a feedback? Remember: we can't respond to App Store reviews, so email us at [email protected]
• Developed in collaboration with Stefano Figurelli.

Have fun playing GREG!


Great app


Great game

Helps keep the ol’ noggin sharp!

Ben's Dad Scott

Plus I get gold to write a review!

Love and challenging

I love this app. It is always fun to have some challenge in the game

Great app for mental skills

Offers a great space to develop Math skills. The time limit is useful to increase metacognition skills.

Challenging game

Fun game that will help you improve your arithmetic skills.

Brain training
Luis "mega"

Good game, addictive

Kill time game

App asked for a review to get 150 in game golds.

Challenging but Fun

A fun way to sharpen your brain with math. Goes a bit too fast at times, but still fun.

Great came, simple in concept challenging in play.

Great game., tests your math skills,fun to play, easy to learn but can be challenging.