# 한국ITS학회 vs 시소

The clearest difference is in-app purchases: 한국ITS학회 at none against 시소's 5. 한국ITS학회 also leads on iOS requirement (11.0 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 시소 sells 5 one-off in-app purchases. 한국ITS학회 asks for nothing beyond the download.

한국ITS학회 ships an update fortnightly, 시소 every 2 weeks. The most recent releases landed on September 13, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | 한국ITS학회 | 시소 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Size | 57 MB | 46 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Jincheol Seo](https://appshunter.io/developer/590612971) | [PLION Corp.](https://appshunter.io/developer/377841185) |

## What reviewers say

### 한국ITS학회

[App page](https://appshunter.io/ios/app/its/id1351202884)

**In-app purchases:** none


### 시소

[App page](https://appshunter.io/ios/app/50-plus/id6744629309)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 시소 딱지 18개 충전 | $2.99 | one-time |
| 시소 딱지 35개 충전 | $4.99 | one-time |
| 시소 딱지 70개 충전 | $9.99 | one-time |
| 시소 딱지 175개 충전 | $29.99 | one-time |
| 시소 딱지 350개 충전 | $49.99 | one-time |


## Frequently asked questions

### Is 한국ITS학회 free?

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

### Is 시소 free?

시소 is free to download, with in-app purchases available.

### Do 한국ITS학회 or 시소 have ads?

Neither 한국ITS학회 nor 시소 shows ads.

### Which is updated more often, 한국ITS학회 or 시소?

한국ITS학회 ships an update fortnightly, and 시소 every 2 weeks. Most recently, 한국ITS학회 was updated on September 13, 2026 and 시소 on September 23, 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.*