# Pettson's Memo vs Equilibrians

The clearest difference is rating: Equilibrians at 5.0 against Pettson's Memo's 4.0. Equilibrians also leads on price ($1.99 vs $3.99) and ratings volume (3 vs 1). Pettson's Memo's advantage is update cadence (every 2 months vs every 54 months) and iOS requirement (12.0 vs 15.0). On ads, in-app purchases, monetization model and device support there is nothing between them.

Pettson's Memo costs $3.99 and Equilibrians $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Equilibrians holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Pettson's Memo ships an update every 2 months, Equilibrians every 54 months. The most recent releases landed on October 21, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Pettson's Memo | Equilibrians |
| --- | --- | --- |
| Price | $3.99 | **$1.99** |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/pettsons-memo/id521097650/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/equilibrians-school-ed/id1185452190/reviews)** |
| Number of ratings | 1 | **3** |
| Positive reviews | 57.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 54 months |
| Monetization | Paid | Paid |
| Size | 138 MB | 199 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Filimundus AB](https://appshunter.io/developer/468644481) | [Oddrobo Software AB](https://appshunter.io/developer/423545647) |

## What reviewers say

### Pettson's Memo

[App page](https://appshunter.io/ios/app/pettsons-memo/id521097650)

Engage in a memory matching game with charming characters and their cat. Explore six unique game modes, including picture counting, math, sound, and logic challenges. Enjoy solo play, compete with a friend, or test your skills against the computer.

**Highlights:** Six creative memo game modes, Play solo, with a friend, or against AI, Three difficulty levels, Original artwork, Kid-friendly interface, No in-app purchases

**Features:** macOS Compatibility

**In-app purchases:** none


### Equilibrians

[App page](https://appshunter.io/ios/app/equilibrians-school-ed/id1185452190)

A puzzle game where players balance creatures on a seesaw by solving mathematical expressions. It visually explains concepts like weight, torque, and equalities through engaging gameplay.

**Highlights:** Balance and weight puzzles, Visual mathematical explanations, Construct valid mathematical equalities, 50 levels across five categories, Randomly generated puzzles, Collect stars and stickers, Multi-user support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pettson's Memo free?

Pettson's Memo costs $3.99, with no in-app purchases.

### Is Equilibrians free?

Equilibrians costs $1.99, with no in-app purchases.

### Which has better reviews, Pettson's Memo or Equilibrians?

Equilibrians is rated higher. Pettson's Memo averages 4.0 out of 5 from 1 ratings, while Equilibrians averages 5.0 from 3 ratings.

### Do Pettson's Memo or Equilibrians have ads?

Neither Pettson's Memo nor Equilibrians shows ads.

### Which is updated more often, Pettson's Memo or Equilibrians?

Pettson's Memo ships an update every 2 months, and Equilibrians every 54 months. Most recently, Pettson's Memo was updated on October 21, 2026 and Equilibrians on October 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*