Comparison

Poly Rules! vs The Head Slam

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

The Head Slam

Features
Read full description

As the world progressed so did the universe. Moles are not only digging in your garden anymore but appearing everywhere across many dimensions and in many forms. Relieve your stress by slamming the heads of many different creatures and show them who is the boss. Score based game with eight different theme options to choose from. By tapping the heads as fast as you can, try to get the highest score. Accuracy and speed are key and be careful because missing them will cost you precious time.

Screenshots

Poly Rules!4 screens
The Head Slam3 screens

Verdict

The call

The clearest difference is ads: Poly Rules! at none against The Head Slam's shown. Poly Rules! also leads on update cadence (monthly vs every 16 months). On price, in-app purchases, device support and iOS requirement 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, The Head Slam every 16 months. The most recent releases landed on September 24, 2026 and October 1, 2026 respectively.

Scorecard2 real differences · 8 level
Poly Rules! versus The Head Slam: the parameters behind the verdict, then further details
ParameterPoly Rules!The Head Slam
PriceFreeFree
Rating4.8 (13 ratings) — better—
Positive reviews80.0% of reviews—
Number of ratings13 — better—
Update frequencyMonthly — betterEvery 16 months
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.011.0 — better
Further details — not scored
Size111 MB34 MB
Age rating4+4+
DeveloperNortheastern University Information ServicesSafak Yalcinkaya

In-app purchases

None

Poly Rules!

No in-app purchases

None

The Head Slam

No in-app purchases

Questions

Is Poly Rules! free?
Poly Rules! is free to download, with no in-app purchases.
Is The Head Slam free?
The Head Slam is free to download, with no in-app purchases.
Do Poly Rules! or The Head Slam have ads?
The Head Slam shows ads; Poly Rules! does not.
Which is updated more often, Poly Rules! or The Head Slam?
Poly Rules! ships an update monthly, and The Head Slam every 16 months. Most recently, Poly Rules! was updated on September 24, 2026 and The Head Slam on October 1, 2026.

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