Review · Educational · Web
HarryRabby2 Adding Large Numbers FREE
Reviewed: 10 May 2026
Web
fingertainment · 2019
Ludograph rating
D
Caution
44 /100
HarryRabby2 Adding Large Numbers FREE is an educational game for practicing large number addition, building math skills and adaptive challenge.
Growth (BDS)
28
Risk (RIS)
0
Daily limit
120min
Age guidance
–
Developmental benefits
| B1 | Cognitive | 0.38 | |
| B2 | Social-emotional | 0.00 | |
| B3 | Motor | 0.45 | |
HarryRabby2 is an educational game focused on practicing large number addition. It features adaptive challenge, adjusting to the player's performance. The game also includes accessibility options for low vision users.
Design risks
| R1 | Compulsion-loop pressure | 0.00 | |
| R2 | Monetization | 0.00 | |
| R3 | Social risk | 0.00 | |
There are no significant risks associated with playing HarryRabby2. The game is free, contains no in-app purchases or social features, and has no problematic content.
Content (not in risk score)
| R4.1 | Violence Level | 0.00 | |
| R4.2 | Sexual Content | 0.00 | |
| R4.3 | Language | 0.00 | |
| R4.4 | Substance References | 0.00 | |
| R4.5 | Fear / Horror | 0.00 | |
Content risk is displayed separately and does not affect the time recommendation.
Regulatory design checks · DSA — Assessed: meets criteria·GDPR-K — Assessed: meets criteria·ODDS — Assessed: meets criteria
- DSA:What Ludograph checks: whether the game's design gives minors the transparency the EU Digital Services Act expects: plain terms, honest defaults, and clear reporting routes.: Estimated from review data. No dark pattern or child-targeting concerns found.
- GDPR-K:What Ludograph checks: whether age assurance and consent flows are designed for under-16s, in the spirit of GDPR Article 8.: Estimated from review data. No privacy or child-targeting concerns found.
- ODDS:What Ludograph checks: whether paid random-reward drop rates are disclosed, as required in China, Japan and South Korea.: Estimated from review data. No paid random-reward mechanics found, so drop-rate disclosure requirements do not apply.
These reflect Ludograph's assessment of the game's design practices against each framework's criteria, not a legal compliance determination.