# S vs Ballet Diary

The clearest difference is in-app purchases: S at none against Ballet Diary's 1. S also leads on ads (none vs shown) and iOS requirement (8.0 vs 15.1). Ballet Diary's advantage is update cadence (every 10 days vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Ballet Diary sells 1 one-off in-app purchase. S asks for nothing beyond the download.

S ships an update every 2 months, Ballet Diary every 10 days. The most recent releases landed on September 8, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | S | Ballet Diary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 10 days** |
| Size | 5 MB | 49 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Guangyun lOT Technology (Guangzhou) Co., Ltd.](https://appshunter.io/developer/1167915182) | [Studio Bliss](https://appshunter.io/developer/1837310610) |

## What reviewers say

### S

[App page](https://appshunter.io/ios/app/s-modo/id1167915183)

**Features:** macOS Compatibility

**In-app purchases:** none


### Ballet Diary

[App page](https://appshunter.io/ios/app/ballet-diary/id6754591517)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 광고 제거 | $2.99 | one-time |


## Frequently asked questions

### Is S free?

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

### Is Ballet Diary free?

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

### Do S or Ballet Diary have ads?

Ballet Diary shows ads; S does not.

### Which is updated more often, S or Ballet Diary?

S ships an update every 2 months, and Ballet Diary every 10 days. Most recently, S was updated on September 8, 2026 and Ballet Diary on September 9, 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.*