Comparison

Poly Rules! vs Saving Memo

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

Saving Memo

Features
Read full description

Saving Memo is a new way to test working memory. Your character works different jobs to feed your cat Memo. Each job challenges your memory in different ways where the more you remember the faster that you can get the job done. This program can help us understand how people use their memory in real world challenges.

Screenshots

Poly Rules!4 screens
Saving Memo4 screens

Verdict

The call

The clearest difference is update cadence: Poly Rules! at monthly against Saving Memo's every 50 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, Saving Memo every 50 months. The most recent releases landed on September 8, 2026 and May 16, 2026 respectively.

Scorecard1 real difference · 9 level
Poly Rules! versus Saving Memo: the parameters behind the verdict, then further details
ParameterPoly Rules!Saving Memo
PriceFreeFree
Rating4.8 (13 ratings) — better—
Positive reviews80.0% of reviews—
Number of ratings13 — better—
Update frequencyMonthly — betterEvery 50 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.012.0
Further details — not scored
Size111 MB92 MB
Age rating4+4+
DeveloperNortheastern University Information ServicesUniversity of California Riverside

In-app purchases

None

Poly Rules!

No in-app purchases

None

Saving Memo

No in-app purchases

Questions

Is Poly Rules! free?
Poly Rules! is free to download, with no in-app purchases.
Is Saving Memo free?
Saving Memo is free to download, with no in-app purchases.
Do Poly Rules! or Saving Memo have ads?
Neither Poly Rules! nor Saving Memo shows ads.
Which is updated more often, Poly Rules! or Saving Memo?
Poly Rules! ships an update monthly, and Saving Memo every 50 months. Most recently, Poly Rules! was updated on September 8, 2026 and Saving Memo on May 16, 2026.

Other comparisons