# Essential Learning System vs Critter School

The clearest difference is rating: Critter School at 5.0 against Essential Learning System's 1.0. Critter School also leads on update cadence (every 6 days vs every 16 months). Essential Learning System's advantage is iOS requirement (9.0 vs 17.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Critter School holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Essential Learning System ships an update every 16 months, Critter School every 6 days. The most recent releases landed on September 9, 2026 and August 19, 2026 respectively.

## The numbers

| Metric | Essential Learning System | Critter School |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/essential-learning-system/id1036171703/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/critter-school/id6759835932/reviews)** |
| Number of ratings | 1 | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 6 days** |
| Monetization | Free | Free |
| Size | 398 MB | 6 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Creative Education Institute](https://appshunter.io/developer/1036171702) | [Cedar Dynamics](https://appshunter.io/developer/1873357587) |

## What reviewers say

### Essential Learning System

[App page](https://appshunter.io/ios/app/essential-learning-system/id1036171703)

This program accelerates learning for students facing reading and language challenges. It uses multisensory, interactive lessons to build foundational skills, offering individualized instruction for at-risk learners and those with learning disadvantages.

**Highlights:** Accelerated learning for at-risk students, Multisensory learning pathways, Individualized and differentiated instruction, Interactive learning with feedback, Systematic phonics instruction, Language and vocabulary enrichment, Practice and repetition activities

**Features:** macOS Compatibility

**In-app purchases:** none


### Critter School

[App page](https://appshunter.io/ios/app/critter-school/id6759835932)

Practice essential math facts through engaging games and adventures. Hatch and collect unique critters, track your progress, and enjoy a safe, ad-free learning experience. Ideal for all ages mastering arithmetic.

**Highlights:** Math facts practice (addition, subtraction, multiplication, division), Hatch and collect unique critters, Adventure mode with math-powered gameplay, Math Match mini-game, Multiple profiles and cloud sync, Offline play

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Essential Learning System free?

Essential Learning System is free to download, with no in-app purchases.

### Is Critter School free?

Critter School is free to download, with no in-app purchases.

### Which has better reviews, Essential Learning System or Critter School?

Critter School is rated higher. Essential Learning System averages 1.0 out of 5 from 1 ratings, while Critter School averages 5.0 from 2 ratings.

### Do Essential Learning System or Critter School have ads?

Neither Essential Learning System nor Critter School shows ads.

### Which is updated more often, Essential Learning System or Critter School?

Essential Learning System ships an update every 16 months, and Critter School every 6 days. Most recently, Essential Learning System was updated on September 9, 2026 and Critter School on August 19, 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.*