# 해시칼리지 vs The Relativity Tales

The clearest difference is in-app purchases: 해시칼리지 at none against The Relativity Tales's 1. 해시칼리지 also leads on ads (none vs shown). The Relativity Tales's advantage is update cadence (weekly vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. The Relativity Tales sells 1 one-off in-app purchase. 해시칼리지 asks for nothing beyond the download.

해시칼리지 ships an update every 2 months, The Relativity Tales weekly. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 해시칼리지 | The Relativity Tales |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/the-relativity-tales/id6747155057/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 31 MB | 624 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 9+ |
| Developer | [SecondQ Lab Co., Ltd.](https://appshunter.io/developer/6775413835) | [Sang Heon Park](https://appshunter.io/developer/1675276100) |

## What reviewers say

### 해시칼리지

[App page](https://appshunter.io/ios/app/id6474658668)

**Features:** macOS Compatibility

**In-app purchases:** none


### The Relativity Tales

[App page](https://appshunter.io/ios/app/the-relativity-tales/id6747155057)

Explore the principles of special relativity through interactive thought experiments and engaging narratives. This app transforms complex scientific concepts into intuitive experiences, making science accessible and emotionally resonant.

**Highlights:** Interactive thought experiments, Narrative-driven learning, Intuitive science exploration, Exploration of spacetime concepts, Courtroom thriller scenarios, Space exploration narratives

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock "The Relativity Tales" | $4.99 | one-time |


## Frequently asked questions

### Is 해시칼리지 free?

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

### Is The Relativity Tales free?

The Relativity Tales is free to download, with in-app purchases available.

### Do 해시칼리지 or The Relativity Tales have ads?

The Relativity Tales shows ads; 해시칼리지 does not.

### Which is updated more often, 해시칼리지 or The Relativity Tales?

해시칼리지 ships an update every 2 months, and The Relativity Tales weekly. Most recently, 해시칼리지 was updated on November 4, 2026 and The Relativity Tales 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.*