Comparison

Poly Rules! vs All You Can ET

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

All You Can ET

Engage in a fun game designed to enhance cognitive flexibility by applying changing rules to feed aliens. This experience is built on research into executive functions, aiming to improve skills crucial for academic success.

Highlights
  • Cognitive flexibility training
  • Rule-based gameplay
  • Alien feeding challenges
  • Executive function development
  • Research-backed design
Features
Read full description

All You Can ET is a game designed to train cognitive flexibility, a subskill of executive functions. Cognitive flexibility involves inhibiting a prior perspective and considering a new perspective (Diamond, 2013). Players need to apply frequently changing rules to give differently colored aliens the right food or drink they need to survive. How does this support learning? Executive functions refer to a set of top-down, goal-oriented cognitive processes that enable people to control, monitor and plan behaviors and emotions. Miyake and Friedman’s model supports a unity-and-diversity view of EF in that it incorporates the three distinct but related components of EF: inhibitory control, task-switching and updating (Miyake et al., 2000). What is the research evidence? Our research suggests that All you Can ET is an effective way to train Cognitive flexibility. Homer, B.D., Plass, J.L., Rose, M.C., MacNamara, A.*, Pawar, S.*, & Ober, T.M. (2019). Activating Adolescents’ “Hot” Executive Functions in a Digital Game to Train Cognitive Skills: The Effects of Age and Prior Abilities. Cognitive Development, 49, 20-32. Research has found that EF is related to performance in literacy and math along with long-term gains in school performance and academic readiness (Blair & Razza, 2007; Brock, Rimm-Kaufman, Nathanson, & Grimm, 2009; St Clair-Thompson & Gathercole, 2006; Welsh, Nix, Blair, Bierman, & Nelson, 2010) and that disparities in EF among preschool children from low-income versus high-income homes may contribute to the achievement gap (Blair & Razza, 2007; Noble, McCandliss, & Farah, 2007). This game is part of the Smart Suite, created by New York University’s CREATE lab in collaboration with the University of California, Santa Barbara, and The Graduate Center, CUNY. The research reported here was supported by the Institute of Education Sciences, U.S. Department of Education, through Grant R305A150417 to the University of California, Santa Barbara. The opinions expressed are those of the authors and do not represent views of the Institute or the U.S. Department of Education.

Screenshots

Poly Rules!4 screens
All You Can ET4 screens

Verdict

The call

The clearest difference is update cadence: Poly Rules! at monthly against All You Can ET's every 39 months. Poly Rules! also leads on review sentiment (80% vs 67%). On price, rating, ratings volume and ads 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.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Poly Rules! against 4.8 for All You Can ET. Both are backed by a comparable volume of ratings — 13 and 10 respectively. Written reviews are what separate them: 80% of Poly Rules!'s written reviews are positive against 67% of All You Can ET's.

UpkeepUpdate frequency

Poly Rules! ships an update monthly, All You Can ET every 39 months. The most recent releases landed on September 8, 2026 and June 9, 2026 respectively.

Scorecard2 real differences · 8 level
Poly Rules! versus All You Can ET: the parameters behind the verdict, then further details
ParameterPoly Rules!All You Can ET
PriceFreeFree
Rating4.8 (13 ratings)4.8 (10 ratings)
Positive reviews80.0% of reviews — better66.7% of reviews
Number of ratings13 — better10
Update frequencyMonthly — betterEvery 39 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.012.0
Further details — not scored
Size111 MB132 MB
Age rating4+4+
DeveloperNortheastern University Information ServicesNew York University

Customer experience

Poly Rules!

All ratings13 ratings
Positive92.3%
Neutral0.0%
Negative7.7%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

All You Can ET

All ratings10 ratings
Positive90.0%
Neutral10.0%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral33.3%
Negative0.0%

In-app purchases

None

Poly Rules!

No in-app purchases

None

All You Can ET

No in-app purchases

Questions

Is Poly Rules! free?
Poly Rules! is free to download, with no in-app purchases.
Is All You Can ET free?
All You Can ET is free to download, with no in-app purchases.
Which has better reviews, Poly Rules! or All You Can ET?
Poly Rules! and All You Can ET are both rated 4.8 out of 5 on the App Store, from 13 and 10 ratings respectively.
Do Poly Rules! or All You Can ET have ads?
Neither Poly Rules! nor All You Can ET shows ads.
Which is updated more often, Poly Rules! or All You Can ET?
Poly Rules! ships an update monthly, and All You Can ET every 39 months. Most recently, Poly Rules! was updated on September 8, 2026 and All You Can ET on June 9, 2026.

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