Brain Reactor vs Sum Fun

Big laughs. Quick reactions. One device. Brain Reactor turns your iPhone or iPad into a party table for 2, 3 or 4 players. Face your friends, watch the same challenge and race to tap your button at the right moment. A correct answer earns a point. A mistake costs one. Who will react first? BUILD YOUR MATCH Choose your games with clear, colorful icons. Pick random rounds or play in order, set the number of rounds and decide how many correct answers finish each round. QUICK GAMES, DIFFERENT SKILLS Spot the bitten apple, solve an equation, judge overlapping shapes or time your tap when a car appears. The full collection also includes memory grids, dice totals, rock paper scissors, a rotating pointer, dominoes and more. MADE TO PLAY TOGETHER One shared field, large player buttons and instructions facing both sides keep everyone in the game. Play locally on the same device — no app account or online opponent required. YOUR SCREEN, YOUR STYLE Choose Light, Dark or Auto appearance across the entire game. Responsive layouts adapt to iPhone, iPhone Duo and iPad, and resizing pauses the match so you can get comfortable before continuing. 10 GAMES INCLUDED. 20 WITH FULL GAME. Start with the original ten games. The optional Brain Reactor Full Game purchase permanently unlocks the ten additional games and removes between-match ads. It is a one-time purchase, not a subscription. Purchases can be restored from the Full Game screen. Pick your games. Gather your friends. One more round?

Sum Fun – The Number Puzzle Game for Sharp Minds Place numbers, match sums, blast the board! Sum Fun is the unique number puzzle that's been loved by players worldwide since 2015. How To Play (3 simple rules): 1. Place a number into any empty slot 2. If it matches the last digit of the sum of its neighbours, they get blasted away! 3. No matches? Place a number that sets up a future sum, and keep blasting until the board is empty! Why you'll love Sum Fun: • Easy to play, fun to master – just 3 simple rules, with surprising depth and strategy • 20+ creative board shapes – play on a Hexagon, Pyramid, Star, Heart, Turtle, Rocket, Butterfly, Snowflake, and many more, with new shapes added regularly! • Regular Postcard Challenges – play limited-time events and collect unique downloadable artwork (by real artists!) • No time limits – play at your own pace and relax while keeping your mind sharp • Challenge friends (and yourself!) – share puzzles via QR code, text code, or pass-and-play. No internet needed! • No annoying pop-up ads – your concentration stays on the puzzle, where it belongs! We play Sum Fun too, and keep the experience friendly. • Brain-boosting gameplay – after a few games, you'll be adding up numbers faster than you can say, 'What's six plus eight?' • Multiple themes – choose from Light, Dark, and Midnight to suit your style If you enjoy Sudoku, Kakuro, or other number-based brain games, you'll love the unique twist of Sum Fun. Exercise your mind, master the numbers, and discover why players keep coming back – download free today!