# 헤어핀 HAIRPIN vs Client Notes

The clearest difference is in-app purchases: 헤어핀 HAIRPIN at none against Client Notes's 1. 헤어핀 HAIRPIN also leads on update cadence (every 2 days vs fortnightly). Client Notes's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Client Notes sells 1 one-off in-app purchase. 헤어핀 HAIRPIN asks for nothing beyond the download.

헤어핀 HAIRPIN ships an update every 2 days, Client Notes fortnightly. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 헤어핀 HAIRPIN | Client Notes |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Fortnightly |
| Size | 129 MB | 3 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Chanho Hwang](https://appshunter.io/developer/1596846406) | [torankirite](https://appshunter.io/developer/1883564850) |

## What reviewers say

### 헤어핀 HAIRPIN

[App page](https://appshunter.io/ios/app/hairpin/id6777420253)

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

**In-app purchases:** none


### Client Notes

[App page](https://appshunter.io/ios/app/client-notes-salon-records/id6820319007)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $19.99 | one-time |


## Frequently asked questions

### Is 헤어핀 HAIRPIN free?

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

### Is Client Notes free?

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

### Do 헤어핀 HAIRPIN or Client Notes have ads?

헤어핀 HAIRPIN shows ads; Client Notes does not.

### Which is updated more often, 헤어핀 HAIRPIN or Client Notes?

헤어핀 HAIRPIN ships an update every 2 days, and Client Notes fortnightly. Most recently, 헤어핀 HAIRPIN was updated on October 28, 2026 and Client Notes on October 24, 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.*