iStroopChallenge vs RefleX

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.

How fast is your brain? Test your speed, memory, and focus across 10 cognitive challenges and find out your RefleX Age. 10 BRAIN TESTS • Target Tap: tap targets as fast as you can • Color Reaction: react the moment the screen changes • Go / No-Go: tap on green, hold on red (impulse control) • Number Order: tap 1 to 25 in a shuffled grid, fast • Math Speed: solve arithmetic under pressure • Stroop Test: name the color, not the word • Sequence Memory: repeat growing tile patterns • Chimp Test: memorize numbers, tap in order • Visual Memory: recall the highlighted squares • Word Memory: seen or new? Test your recall THE GAUNTLET Take all 10 tests back to back for one overall RefleX Age. The ultimate measure of your mind's speed. COMPETE & CHALLENGE • 22 Game Center leaderboards, including weekly boards that reset every Monday • 9 achievements to unlock, with an in-app progress tracker • Challenge your friends to beat your score • Daily challenges with streaks, milestones, and reminders so you never lose your run SMARTER RESULTS • A RefleX Age score after every test • A rolling 10-game average, so your score stays steady and honest • Personal best alerts the moment you beat your record • Real percentile ranking, pulled from the leaderboards • An activity heatmap and personal records in your history HANDS-FREE • Ask Siri "What's my RefleX Age?" • Jump into today's challenge from Shortcuts or Spotlight • Home Screen and Lock Screen widgets for your streak and trend BUILT FOR EVERYONE • Color Blind Mode with shape cues • Reduce Motion and full Dynamic Type support • Pause Sequence, Chimp, and Visual Memory when life interrupts • Larger, clearer results No sign-up. No account. Just open and play. Works offline too. Free to play with ads. Watch one short video for 24 hours ad-free, or Remove Ads Forever with a one-time purchase (Family Shareable). Think you're quick? Prove it.