# Hearing Smart CSR vs 청운

The clearest difference is in-app purchases: Hearing Smart CSR at none against 청운's 6. Hearing Smart CSR also leads on ads (none vs shown). 청운's advantage is update cadence (every 8 days vs every 6 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. 청운 sells 6 one-off in-app purchases. Hearing Smart CSR asks for nothing beyond the download.

Hearing Smart CSR ships an update every 6 months, 청운 every 8 days. The most recent releases landed on October 5, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Hearing Smart CSR | 청운 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 8 days** |
| Size | 1 MB | 74 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AlgorKorea Co., Ltd.](https://appshunter.io/developer/1173452285) | [myeonghae kan](https://appshunter.io/developer/1812830861) |

## What reviewers say

### Hearing Smart CSR

[App page](https://appshunter.io/ios/app/hearing-smart-csr/id1229528829)

**Features:** macOS Compatibility

**In-app purchases:** none


### 청운

[App page](https://appshunter.io/ios/app/id6745540825)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 99 Token | $5.99 | one-time |
| 204 Token | $11.99 | one-time |
| 402 Token | $22.99 | one-time |
| 615 Token | $39.99 | one-time |
| 1,040 Token | $59.99 | one-time |
| 1,800 Token | $99.99 | one-time |


## Frequently asked questions

### Is Hearing Smart CSR free?

Hearing Smart CSR is free to download, with no in-app purchases.

### Is 청운 free?

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

### Do Hearing Smart CSR or 청운 have ads?

청운 shows ads; Hearing Smart CSR does not.

### Which is updated more often, Hearing Smart CSR or 청운?

Hearing Smart CSR ships an update every 6 months, and 청운 every 8 days. Most recently, Hearing Smart CSR was updated on October 5, 2026 and 청운 on October 25, 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.*