# What shouldn’t be here? Babies vs Primatrix

The clearest difference is price: Primatrix at Free against What shouldn’t be here? Babies's $2.99. Primatrix also leads on update cadence (every 6 days vs every 11 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Primatrix is free to download; What shouldn’t be here? Babies costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

What shouldn’t be here? Babies ships an update every 11 months, Primatrix every 6 days. The most recent releases landed on October 23, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | What shouldn’t be here? Babies | Primatrix |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/what-shouldnt-be-here-babies/id684998791/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 92.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 6 days** |
| Monetization | Paid | — |
| Size | 198 MB | 39 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DOG&FROG Educational preschool kids games for girls and boys, toddlers and babies](https://appshunter.io/developer/651448427) | [Alexey Andreev](https://appshunter.io/developer/1622101276) |

## What reviewers say

### What shouldn’t be here? Babies

[App page](https://appshunter.io/ios/app/what-shouldnt-be-here-babies/id684998791)

This game helps young children develop logical reasoning by identifying the picture that doesn't belong in a set. It features 700 illustrated examples across various topics with engaging voiceovers and visuals.

**Highlights:** Logical connection training, 700+ illustrated examples, 7 learning topics, Voiceover and illustrations, Auto and manual settings, Multilingual support

**Features:** macOS Compatibility

**In-app purchases:** none


### Primatrix

[App page](https://appshunter.io/ios/app/primatrix/id6740640856)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is What shouldn’t be here? Babies free?

What shouldn’t be here? Babies costs $2.99, with no in-app purchases.

### Is Primatrix free?

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

### Do What shouldn’t be here? Babies or Primatrix have ads?

Neither What shouldn’t be here? Babies nor Primatrix shows ads.

### Which is updated more often, What shouldn’t be here? Babies or Primatrix?

What shouldn’t be here? Babies ships an update every 11 months, and Primatrix every 6 days. Most recently, What shouldn’t be here? Babies was updated on October 23, 2026 and Primatrix on October 28, 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.*