Comparison

Stroop! vs Stroop Challenge Go

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

Head to head
About

Stroop!

This colorful puzzle game challenges your perception and reaction time. Match the color of the word to the word's actual color, not the word itself, under a strict time limit. Compete for high scores in this engaging brain-training experience.

Highlights
  • Color word matching
  • Time-limited challenges
  • High score competition
  • Multilingual word support
  • Reverse Stroop Effect gameplay
Features
Read full description

Stroop is confusing and colorful Puzzle Game! Don't be misled by the Reverse Stroop Effect! And Touch the color correctly in limited time. Achieve a high score!! *name of color will be written in not only English, but also French and Spanish... How to Play Color name will be shown and Touch the same color speedy! If you touch wrong color or Time is up, the Game is Over... The deadline will come closer!! Choose answer in a moment and get a high score!!

About

Stroop Challenge Go

Features
Read full description

Stroop Challenge is a precision cognitive training tool based on the Stroop Effect — one of the most replicated findings in experimental psychology — measuring interference between word reading and color recognition. THE SCIENCE: The Stroop Effect demonstrates that automatic processing (word reading) can interfere with controlled processing (color identification). Regular exposure to Stroop-type stimuli has been associated with improved selective attention, cognitive flexibility, and processing speed. TWO VALIDATED MODES: • Classic (Color-Naming) — Identify the ink color of the presented word. Suppresses automatic reading response. • Word Match (Word-Reading) — Identify the color named by the word. Tests semantic processing independence. METRICS TRACKED: • Score per round (accuracy × speed composite) • Best accuracy rate (percentage of correct responses) • Fastest average reaction time (milliseconds per response) • Session totals: rounds played, correct and incorrect responses • Combo chains: consecutive correct responses DIFFICULTY SCALING: • Easy: 4 color stimuli (Red, Blue, Green, Yellow) • Medium: 5 color stimuli (adds Purple) • Hard: 6 color stimuli (adds Orange) DATA PRIVACY: All data is stored locally via UserDefaults. No network requests are made. No personal information is collected, transmitted, or shared. The app functions completely offline. Ideal for daily cognitive warm-up, focus training, or simply exploring one of psychology's most fascinating phenomena.

Screenshots

Stroop!4 screens
Stroop Challenge Go4 screens

Verdict

The call

The clearest difference is ads: Stroop Challenge Go at none against Stroop!'s shown. Stroop!'s advantage is iOS requirement (11.0 vs 15.0). On price, in-app purchases and device support 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.

Scorecard2 real differences · 8 level
Stroop! versus Stroop Challenge Go: the parameters behind the verdict, then further details
ParameterStroop!Stroop Challenge Go
PriceFreeFree
Rating3.9 (7 ratings) — better—
Positive reviews25.0% of reviews—
Number of ratings7 — better—
Update frequencyEvery 2 weeks—
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11.0 — better15.0
Further details — not scored
Size86 MB1 MB
Age rating4+4+
DeveloperYukihiro Kadono晓 郭

In-app purchases

None

Stroop!

No in-app purchases

None

Stroop Challenge Go

No in-app purchases

Questions

Is Stroop! free?
Stroop! is free to download, with no in-app purchases.
Is Stroop Challenge Go free?
Stroop Challenge Go is free to download, with no in-app purchases.
Do Stroop! or Stroop Challenge Go have ads?
Stroop! shows ads; Stroop Challenge Go does not.

Other comparisons