# 나온OTP vs CAS Catalog

The clearest difference is update cadence: CAS Catalog at fortnightly against 나온OTP's every 10 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

나온OTP ships an update every 10 months, CAS Catalog fortnightly. The most recent releases landed on October 15, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | 나온OTP | CAS Catalog |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Fortnightly** |
| Size | 18 MB | 10 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Naonsoft](https://appshunter.io/developer/438163829) | [CASHealth](https://appshunter.io/developer/976488437) |

## What reviewers say

### 나온OTP

[App page](https://appshunter.io/ios/app/otp/id1542729663)

**In-app purchases:** none


### CAS Catalog

[App page](https://appshunter.io/ios/app/cas-catalog/id6756562788)

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

**In-app purchases:** none


## Frequently asked questions

### Is 나온OTP free?

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

### Is CAS Catalog free?

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

### Do 나온OTP or CAS Catalog have ads?

Neither 나온OTP nor CAS Catalog shows ads.

### Which is updated more often, 나온OTP or CAS Catalog?

나온OTP ships an update every 10 months, and CAS Catalog fortnightly. Most recently, 나온OTP was updated on October 15, 2026 and CAS Catalog on October 2, 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.*