Comparison

Poly Rules! vs Hipoxia

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

Head to head
About

Poly Rules!

A challenging sorting game where the rules dynamically change as you progress. It offers increasingly complex scenarios to test your cognitive abilities. Researchers can inquire about using the game for studies.

Highlights
  • Dynamic rule changes
  • Increasingly complex scenarios
  • Cognitive benefit focus
  • Research support available
  • Log storage and analytics (coming soon)
Features
Read full description

PolyRules is a challenging sorting game where the rules change as you play. As you progress through the game you will encounter increasingly more complicated scenarios that challenge you in ways you can't imagine. The current release is our first prototype and we will update the game semi-frequently as we move towards a design that features tried and true game design to facilitate the cognitive benefits this game aids to provide. Researchers who are interested in using this game for their own studies please reach out to us to us through our support page for more information on how to best use this App. We have several ways to support you including a central server to store logs and automatic analytics which will be implemented in the coming weeks.

About

Hipoxia

Features
Read full description

El agua marina tiene oxígeno, ¡pero puede agotarse! La hipoxia marina a menudo ocurre cuando los humanos contaminan el agua; algunos animales pueden alejarse nadando como los peces, pero los animales lentos, como los erizos de mar, no pueden moverse lo suficientemente rápido. ¡Ayuda a nuestro héroe, el sargento mayor, a escapar del agua con poco oxígeno y a salvar a sus amigos del peligro, sin ser devorado por sus depredadores! Puedes jugar con tu celular, tablet o computadora. ¡A divertirse!

Screenshots

Poly Rules!4 screens
Hipoxia4 screens

Verdict

The call

The clearest difference is update cadence: Poly Rules! at monthly against Hipoxia's every 4 months. On price, ads, 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.

UpkeepUpdate frequency

Poly Rules! ships an update monthly, Hipoxia every 4 months. The most recent releases landed on October 11, 2026 and October 1, 2026 respectively.

Scorecard1 real difference · 9 level
Poly Rules! versus Hipoxia: the parameters behind the verdict, then further details
ParameterPoly Rules!Hipoxia
PriceFreeFree
Rating4.8 (13 ratings) — better—
Positive reviews80.0% of reviews—
Number of ratings13 — better—
Update frequencyMonthly — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better12.1
Further details — not scored
Size111 MB63 MB
Age rating4+4+
DeveloperNortheastern University Information ServicesSmithsonian Institution

In-app purchases

None

Poly Rules!

No in-app purchases

None

Hipoxia

No in-app purchases

Questions

Is Poly Rules! free?
Poly Rules! is free to download, with no in-app purchases.
Is Hipoxia free?
Hipoxia is free to download, with no in-app purchases.
Do Poly Rules! or Hipoxia have ads?
Neither Poly Rules! nor Hipoxia shows ads.
Which is updated more often, Poly Rules! or Hipoxia?
Poly Rules! ships an update monthly, and Hipoxia every 4 months. Most recently, Poly Rules! was updated on October 11, 2026 and Hipoxia on October 1, 2026.

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