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1+1=？

Review · Racing · PC

1+1=？

Reviewed: 27 Jun 2026

PC

Easy S Studio · 2025

Ludograph rating

D

Caution

39 /100

Automated review
06010030Benefit →Low risk →B 25 · R 6
The Ludograph reading, plotted from the published benefit and risk sub-scores.

Growth (BDS)

25

Risk (RIS)

6

Daily limit

120min

Age guidance

9+

Developmental benefits

B1Cognitive
0.42
B2Social-emotional
0.03
B3Motor
0.15

1+1=？ offers a relaxed and engaging way to practice arithmetic skills, from basic addition to more complex multiplication, with an adaptive difficulty system. Players can enjoy collecting stickers and interacting with charming anime girl characters, fostering a positive learning environment.

Design risks

R1Compulsion-loop pressure
0.13
R2Monetization
0.00
R3Social risk
0.00

While primarily educational, the game features anime girl characters and a mechanic of 'winning their hearts,' which could be subtly suggestive. It also incorporates mild compulsion-loop mechanics like streak-based rewards ('Heart-throbbing Mode') to encourage continued play.

Content (not in risk score)

R4.1Violence Level
0.00
R4.2Sexual Content
0.33
R4.3Language
0.00
R4.4Substance References
0.00
R4.5Fear / 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.

ReviewedJun 2026Report a data error →How scores are calculated →

Parents ask…

Is 1+1=？ safe for kids?

Ludograph gives 1+1=？ a rating of 39/100, recommended for ages 9 and up. There are notable risks worth knowing before letting kids play.

What age is 1+1=？ appropriate for?

Ludograph's rubric recommends a minimum age of 9+ for 1+1=？, based on benefits, risks, and content review.

How long should kids play 1+1=？?

Our session recommendation for 1+1=？ is up to 120 minutes per day. It is derived from the game's own structure (natural stopping points, compulsion-loop design, monetization pressure, and social dynamics), not from a universal screen-time dose.

Session recommendations are design-based heuristics. Evidence linking specific daily durations to child outcomes is limited, and context matters as much as time; treat this as a starting point for household rules, not a clinical threshold.

What are the main risks of 1+1=？?

While primarily educational, the game features anime girl characters and a mechanic of 'winning their hearts,' which could be subtly suggestive. It also incorporates mild compulsion-loop mechanics like streak-based rewards ('Heart-throbbing Mode') to encourage continued play.