iStroopChallenge

STROOP CHALLENGE – Four brain challenges, a new puzzle every day

It starts with the classic Stroop test: tap the INK COLOR of each word, not what the word says. When "RED" appears in blue ink, your brain wants to read the word, and resisting that pull is the challenge.

Version 2 adds three more challenges, each testing a different kind of focus:

• STROOP – Tap the ink color, not the word.
• FLANKER – Swipe the way the middle arrow points while the arrows around it point the other way.
• GO / NO-GO – Tap fast on GO, and hold back on STOP.
• SIMON EFFECT – Red means left and blue means right, even when the color shows up on the wrong side.

TWO DAILY PUZZLES
• Daily Stroop – The same words for everyone, every day.
• Daily Mix – Three quick rounds of different challenges, new each day.
Each daily keeps its own streak, with streak freezes that save a missed day. Look back on every result in the history calendar, and share your score as a grid of colored squares.

YOUR BRAIN SCORE
One number from 0 to 1000, built from your speed and accuracy across every challenge, with a breakdown by skill: self-control, flexibility, memory and spatial.

PLAY YOUR WAY
• Timed, Bonus Time and Endless modes
• Easy, Normal and Hard, plus difficulty that adapts as you play
• A best score for every challenge

CHALLENGE YOUR FRIENDS
• Send a challenge code so a friend plays the exact same game
• Game Center leaderboards and achievements

MADE FOR EVERYONE
• Color blind modes for red-green and blue-yellow color blindness, with colors you can tell apart and a shape on every button
• VoiceOver support and large text
• Respects Reduce Motion
• 5 color themes

Plus a home screen widget, daily reminders and detailed stats with progress charts.