# Milo Numbers vs Solar System Viewer

The clearest difference is price: Milo Numbers at Free against Solar System Viewer's $2.99. Milo Numbers also leads on rating (5.0 vs 4.4) and in-app purchases (none vs 4). Solar System Viewer's advantage is update cadence (every 2 months vs every 48 months) and ratings volume (28 vs 1). On ads there is nothing between them.

Milo Numbers is free to download; Solar System Viewer costs $2.99 up front. Solar System Viewer sells 4 one-off in-app purchases. Milo Numbers asks for nothing beyond the download.

Milo Numbers holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Solar System Viewer has 28 ratings behind it against 1, so its average is the more settled of the two.

Milo Numbers ships an update every 48 months, Solar System Viewer every 2 months. The most recent releases landed on October 3, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Milo Numbers | Solar System Viewer |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/milo-numbers/id1384247970/reviews)** | [4.4 (28 ratings)](https://appshunter.io/ios/app/solar-system-viewer-8planets/id1554639445/reviews) |
| Number of ratings | 1 | **28** |
| Positive reviews | — | 83.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 48 months | **Every 2 months** |
| Monetization | **Free** | Paid |
| Size | 24 MB | 22 MB |
| Requires iOS | **10.0** | 26.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Garrett Milovich](https://appshunter.io/developer/1232968333) | [BLUE COMET LABS LLC](https://appshunter.io/developer/1492055170) |

## What reviewers say

### Milo Numbers

[App page](https://appshunter.io/ios/app/milo-numbers/id1384247970)

This app helps children learn numbers from zero to one hundred through a fun and engaging experience. It's designed to keep young learners occupied and can help them excel in preschool.

**Highlights:** Teaches numbers 0-100, Fun and engaging gameplay, Keeps children occupied, Aids preschool learning, Part of a learning collection

**Features:** macOS Compatibility

**In-app purchases:** none


### Solar System Viewer

[App page](https://appshunter.io/ios/app/solar-system-viewer-8planets/id1554639445)

Explore and simulate the orbits of planets in our solar system. This app allows you to speed up or slow down time, travel to any date, and view planetary positions. It also offers widgets for your home screen and Apple Watch complications.

**Highlights:** Simulate planetary orbits, Adjust time speed, Time travel to specific dates, Home screen widgets, Apple Watch integration, View planet overviews

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Io Tip | $1.99 | one-time |
| Europa Tip | $3.99 | one-time |
| Ganymede Tip | $5.99 | one-time |
| Callisto Tip | $9.99 | one-time |


## Frequently asked questions

### Is Milo Numbers free?

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

### Is Solar System Viewer free?

Solar System Viewer costs $2.99, and also offers in-app purchases.

### Which has better reviews, Milo Numbers or Solar System Viewer?

Milo Numbers is rated higher. Milo Numbers averages 5.0 out of 5 from 1 ratings, while Solar System Viewer averages 4.4 from 28 ratings.

### Do Milo Numbers or Solar System Viewer have ads?

Neither Milo Numbers nor Solar System Viewer shows ads.

### Which is updated more often, Milo Numbers or Solar System Viewer?

Milo Numbers ships an update every 48 months, and Solar System Viewer every 2 months. Most recently, Milo Numbers was updated on October 3, 2026 and Solar System Viewer on October 18, 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.*