EYT Go/NoGo vs StroopEffect2
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Inhibition assessment game
- Tap fish, avoid sharks
- 5-minute assessment
- Score reporting
- Data export for research
- Multilingual support
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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.
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.
- Stroop effect demonstration
- Time trial game mode
- Cognitive processing experiment
- Reaction time measurement
- Educational psychology tool
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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
Verdict
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
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.
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.
| Parameter | EYT Go/NoGo | StroopEffect2 |
|---|---|---|
| Price | $9.99 | $2.99 — better |
| Rating | 4.5 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 months — better | Every 14 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 70 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | University of Wollongong | Yasuyoshi Ota |
Customer experience
EYT Go/NoGo
StroopEffect2
In-app purchases
EYT Go/NoGo
No in-app purchases
StroopEffect2
No in-app purchases
Questions
Is EYT Go/NoGo free?
Is StroopEffect2 free?
Do EYT Go/NoGo or StroopEffect2 have ads?
Which is updated more often, EYT Go/NoGo or StroopEffect2?
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