# Solar System for kids vs Speech Math

The clearest difference is price: Solar System for kids at Free against Speech Math's $0.99. Solar System for kids also leads on update cadence (every 2 months vs every 10 months). Speech Math's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

Solar System for kids is free to download; Speech Math costs $0.99 up front. Solar System for kids sells 1 one-off in-app purchase. Speech Math asks for nothing beyond the download.

Solar System for kids ships an update every 2 months, Speech Math every 10 months. The most recent releases landed on October 23, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Solar System for kids | Speech Math |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.5 (245 ratings)](https://appshunter.io/ios/app/solar-system-for-kids-space/id1572564923/reviews)** | — |
| Number of ratings | **245** | — |
| Positive reviews | 59.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 10 months |
| Monetization | Free with in-app purchases | — |
| Size | 160 MB | 1 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Kokotots](https://appshunter.io/developer/1558678894) | [kim juyoung](https://appshunter.io/developer/918406157) |

## What reviewers say

### Solar System for kids

[App page](https://appshunter.io/ios/app/solar-system-for-kids-space/id1572564923)

This app introduces children aged 2 and up to the solar system through interactive games and puzzles. It offers various learning modes, including memory challenges, word tracing, and spelling activities, to make learning about planets and space engaging and fun.

**Highlights:** Interactive planet games, Memory puzzles, Word tracing and spelling, Educational videos, Immersive graphics, Galaxy learning

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version | $9.99 | one-time |

**What reviewers like**

- 👍 Educational for kids
- 👍 Fun and engaging games
- 👍 Beautiful illustrations and colors
- 👍 Pleasant sounds
- 👍 Kid-friendly

**What reviewers complain about**

- 💰 Everything costs money
- 💰 Too expensive to purchase
- 💰 Locked content
- 😞 Disappointed with payment model
- 😞 Faulty purchase restoration

**Reported bugs**

- 🐛 Error message: get full access
- 🐛 Unable to restore purchase
- 🐛 Lock icons appear

**Requested features**

- Unlock all planets
- Make app more affordable


### Speech Math

[App page](https://appshunter.io/ios/app/speech-math/id6450673499)

**In-app purchases:** none


## Frequently asked questions

### Is Solar System for kids free?

Solar System for kids is free to download, with in-app purchases available.

### Is Speech Math free?

Speech Math costs $0.99, with no in-app purchases.

### Do Solar System for kids or Speech Math have ads?

Neither Solar System for kids nor Speech Math shows ads.

### Which is updated more often, Solar System for kids or Speech Math?

Solar System for kids ships an update every 2 months, and Speech Math every 10 months. Most recently, Solar System for kids was updated on October 23, 2026 and Speech Math on October 30, 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.*