# Tuning Fork Study vs Real Solar System

The clearest difference is price: Real Solar System at Free against Tuning Fork Study's $1.99. Real Solar System also leads on update cadence (monthly vs every 37 months). Tuning Fork Study's advantage is iOS requirement (12.0 vs 17.6). On ads, in-app purchases and device support there is nothing between them.

Real Solar System is free to download; Tuning Fork Study costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Tuning Fork Study ships an update every 37 months, Real Solar System monthly. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Tuning Fork Study | Real Solar System |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 37 months | **Monthly** |
| Size | 224 MB | 302 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [VIRTUAL FILAMENTS PRIVATE LIMITED](https://appshunter.io/developer/1474217212) | [Masaya Nagaoka](https://appshunter.io/developer/1698240335) |

## What reviewers say

### Tuning Fork Study

[App page](https://appshunter.io/ios/app/tuning-fork-study-edutech-era/id6444695848)

**Features:** macOS Compatibility

**In-app purchases:** none


### Real Solar System

[App page](https://appshunter.io/ios/app/real-solar-system/id6475644962)

**In-app purchases:** none


## Frequently asked questions

### Is Tuning Fork Study free?

Tuning Fork Study costs $1.99, with no in-app purchases.

### Is Real Solar System free?

Real Solar System is free to download, with no in-app purchases.

### Do Tuning Fork Study or Real Solar System have ads?

Neither Tuning Fork Study nor Real Solar System shows ads.

### Which is updated more often, Tuning Fork Study or Real Solar System?

Tuning Fork Study ships an update every 37 months, and Real Solar System monthly. Most recently, Tuning Fork Study was updated on October 10, 2026 and Real Solar System on October 7, 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.*