# Shelf Puppies! vs Space Math Academy

The clearest difference is in-app purchases: Space Math Academy at none against Shelf Puppies!'s 1. Space Math Academy also leads on update cadence (weekly vs every 3 weeks). Shelf Puppies!'s advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.6). On price and ads there is nothing between them.

Both are free to download. Shelf Puppies! sells 1 one-off in-app purchase. Space Math Academy asks for nothing beyond the download.

Shelf Puppies! ships an update every 3 weeks, Space Math Academy weekly. The most recent releases landed on October 18, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Shelf Puppies! | Space Math Academy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/shelf-puppies/id6760420789/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 290 MB | 67 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Seahorse Centaur Studios](https://appshunter.io/developer/1884380030) | [Nathaniel Botwick](https://appshunter.io/developer/1762752184) |

## What reviewers say

### Shelf Puppies!

[App page](https://appshunter.io/ios/app/shelf-puppies/id6760420789)

A fun sorting game for children that helps them develop object recognition and hand-eye coordination. Players sort objects into the trash and place puppies on shelves. Offers ad-free play with an option to upgrade for more content.

**Highlights:** Object recognition practice, Hand-eye coordination development, Early sorting skills, Adorable puppy characters, Ad-free gameplay option, Unlockable bonus content

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Extended Play | $1.99 | one-time |


### Space Math Academy

[App page](https://appshunter.io/ios/app/space-math-academy/id6781418656)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Shelf Puppies! free?

Shelf Puppies! is free to download, with in-app purchases available.

### Is Space Math Academy free?

Space Math Academy is free to download, with no in-app purchases.

### Do Shelf Puppies! or Space Math Academy have ads?

Neither Shelf Puppies! nor Space Math Academy shows ads.

### Which is updated more often, Shelf Puppies! or Space Math Academy?

Shelf Puppies! ships an update every 3 weeks, and Space Math Academy weekly. Most recently, Shelf Puppies! was updated on October 18, 2026 and Space Math Academy on October 25, 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.*