Comparison

GreenRed vs iStroopChallenge

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

GreenRed

This game challenges your brain by presenting colored words that may not match their text. Test your reaction time and focus by quickly identifying the print color. Customize session length, color palettes, and languages to enhance your cognitive training.

Highlights
  • Stroop effect-based gameplay
  • Customizable session length
  • Multiple color palettes
  • Multilingual support (6 languages)
  • Reaction time graphs and statistics
  • High score tracking
Read full description

GreenRed is based on a cognitive phenomenon called Stroop effect. In layman’s terms this means that when people are asked to name shown colors, if linguistic and visual input are not aligned, naming the colors takes longer. In GreenRed game you are shown colored words. Basically these are color names printed with different colors. Your task is to name the print color as fast as possible by tapping a button which has the correct color name as the title. The color names and print colors can be mismatched, meaning that for example color name “Green” can be printed in red color. After each game session you are offered feedback of that session. The game displays a reaction time graph, some statistics of the session, as well as some guidance to improve your results. GreenRed game allows you to customize the gaming experience. You can choose different length for your game sessions, from 10 seconds up to two minutes. If staying focused on the game during longer session feels too hard, you can shorten the session length and build your concentration from ground up. You can also change the color palette used in the game. The default colors are red and green, but there are also number of other color options available. For example color blind people might prefer playing the game with color pairs like blue-orange or blue-red. Let us know if you want to have different color options available. For multilingual users the game offers possibilities to play the game using one the six available languages (English, French, German, Spanish, Swedish and Finnish). You can try if your cognition is faster in your native tongue than with your secondary languages. And why not try learning color names in a new language? You might find that you are faster when using a language you are not familiar with! To allow you to keep track of your progress, the game saves your high scores for each language and session length. Happy playing!

About

iStroopChallenge

Engage your brain with four distinct focus challenges, including the classic Stroop test. Improve self-control, flexibility, memory, and spatial skills through daily puzzles and various game modes. Compete with friends and track your progress with detailed statistics.

Highlights
  • Classic Stroop test
  • Four distinct focus challenges
  • Daily puzzles with streaks
  • Customizable game modes
  • Friend challenges and leaderboards
  • Color blind modes
  • Detailed progress tracking
Features
Read full description

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.

Screenshots

GreenRed4 screens
iStroopChallenge4 screens

Verdict

The call

The clearest difference is iOS requirement: GreenRed at 13.2 against iStroopChallenge's 15.0. On price, rating, ratings volume and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for GreenRed against 5.0 for iStroopChallenge. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Scorecard1 real difference · 9 level
GreenRed versus iStroopChallenge: the parameters behind the verdict, then further details
ParameterGreenRediStroopChallenge
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews—100.0% of reviews
Number of ratings11
Update frequency—Every 6 days
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.2 — better15.0
Further details — not scored
Size10 MB29 MB
Age rating4+4+
DeveloperHartti SuomelaSteve Hunger

Customer experience

GreenRed

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

iStroopChallenge

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

GreenRed

No in-app purchases

None

iStroopChallenge

No in-app purchases

Questions

Is GreenRed free?
GreenRed is free to download, with no in-app purchases.
Is iStroopChallenge free?
iStroopChallenge is free to download, with no in-app purchases.
Which has better reviews, GreenRed or iStroopChallenge?
GreenRed and iStroopChallenge are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do GreenRed or iStroopChallenge have ads?
Neither GreenRed nor iStroopChallenge shows ads.

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