Comparison

EYT Go/NoGo vs StroopEffect2

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

Head to head
About

EYT Go/NoGo

This iPad-based game assesses children's impulse control through a simple fish-catching and shark-avoiding mechanic. It takes about 5 minutes to complete and provides scores, with options to export detailed data for research. It's part of a larger toolbox of early childhood assessments.

Highlights
  • Inhibition assessment game
  • Tap fish, avoid sharks
  • 5-minute assessment
  • Score reporting
  • Data export for research
  • Multilingual support
Read full description

Early Years Toolbox (EYT) Go/No-Go is an iPad-based assessment of children's inhibition (i.e., ability to control behavioural impulses). In this game, fish and sharks swim across the screen and children are instructed to tap the screen whenever they see a Fish (‘catch the fish’) and refrain from tapping when a Shark appears (‘avoid the sharks’). This game takes approximately 5 minutes to complete. Scores are presented on the final assessment screen. For more precise research applications, there are options to have the item by item data sent to a user-specified e-mail address or database. For more information, training videos and analysis resources, please visit http://www.eytoolbox.com.au Languages embedded: English, Arabic, Afrikaans, Chinese (Simplified and Traditional), Danish, Dutch, Finnish, French, Indonesian, Japanese, Korean, Mandinka, Mongolian, Norwegian, Portuguese, Shangaan, Sotho, Spanish, Swedish, Xhosa, Zulu, and more in progress About the Early Years Toolbox: The 'Early Years Toolbox' (EYT, for short) is comprised of brief, engaging game-like assessments of children’s self-regulation, executive functioning and vocabulary. These assessments are based on well-established and widely used measures, yet have been adapted and optimised on the basis of 20+ years of research experience working with young children. NOTE FOR RESEARCHERS: If using this app for research and/or publication purposes, please cite the following as the original source article: Howard, S. J., & Melhuish, E. (2017). An Early Years Toolbox (EYT) for assessing early executive function, language, self-regulation, and social development: Validity, reliability and preliminary norms. Journal of Psychoeducational Assessment, 35(3), 255-275.

About

StroopEffect2

This app demonstrates the psychological phenomenon known as the Stroop effect. It presents a time-trial game where users must identify the color of words, even when the word itself names a different color. It's a fun way to explore cognitive processing and reaction times.

Highlights
  • Stroop effect demonstration
  • Time trial game mode
  • Cognitive processing experiment
  • Reaction time measurement
  • Educational psychology tool
Features
Read full description

Stroop Effect Experiment app. Time Trial Game. Stroop Effect(from WIKIPEDIA in 2011.01.21) In psychology, the Stroop effect is a demonstration of the reaction time of a task. When the name of a color (e.g., "blue," "green," or "red") is printed in a color not denoted by the name (e.g., the word "red" printed in blue ink instead of red ink), naming the color of the word takes longer and is more prone to errors than when the color of the ink matches the name of the color.

Screenshots

StroopEffect24 screens

Verdict

The call

The clearest difference is price: StroopEffect2 at $2.99 against EYT Go/NoGo's $9.99. StroopEffect2 also leads on device support (3 vs 1). EYT Go/NoGo's advantage is update cadence (every 2 months vs every 14 months). On review sentiment, ads, in-app purchases and monetization model 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

EYT Go/NoGo costs $9.99 and StroopEffect2 $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

EYT Go/NoGo ships an update every 2 months, StroopEffect2 every 14 months. The most recent releases landed on September 16, 2026 and September 18, 2026 respectively.

Scorecard3 real differences · 7 level
EYT Go/NoGo versus StroopEffect2: the parameters behind the verdict, then further details
ParameterEYT Go/NoGoStroopEffect2
Price$9.99$2.99 — better
Rating4.5 (2 ratings) — better—
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings2 — better—
Update frequencyEvery 2 months — betterEvery 14 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPadiPhone, iPad, iPod — better
Requires iOS15.615.6
Further details — not scored
Size70 MB2 MB
Age rating4+4+
DeveloperUniversity of WollongongYasuyoshi Ota

Customer experience

EYT Go/NoGo

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

StroopEffect2

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

EYT Go/NoGo

No in-app purchases

None

StroopEffect2

No in-app purchases

Questions

Is EYT Go/NoGo free?
EYT Go/NoGo costs $9.99, with no in-app purchases.
Is StroopEffect2 free?
StroopEffect2 costs $2.99, with no in-app purchases.
Do EYT Go/NoGo or StroopEffect2 have ads?
Neither EYT Go/NoGo nor StroopEffect2 shows ads.
Which is updated more often, EYT Go/NoGo or StroopEffect2?
EYT Go/NoGo ships an update every 2 months, and StroopEffect2 every 14 months. Most recently, EYT Go/NoGo was updated on September 16, 2026 and StroopEffect2 on September 18, 2026.

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