# Realink Security OTP (滙信保安編碼器) vs Gsmart Coach

The clearest difference is iOS requirement: Realink Security OTP (滙信保安編碼器) at 9.3 against Gsmart Coach's 16.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Realink Security OTP (滙信保安編碼器) ships an update every 3 weeks, Gsmart Coach every 2 weeks. The most recent releases landed on October 26, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Realink Security OTP (滙信保安編碼器) | Gsmart Coach |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 20 MB | 33 MB |
| Requires iOS | **9.3** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Realink Network Co. Ltd.](https://appshunter.io/developer/330953929) | [Tsz King IP](https://appshunter.io/developer/6784613947) |

## What reviewers say

### Realink Security OTP (滙信保安編碼器)

[App page](https://appshunter.io/ios/app/realink-security-otp/id1362477523)

**Features:** macOS Compatibility

**In-app purchases:** none


### Gsmart Coach

[App page](https://appshunter.io/ios/app/gsmart-coach/id6784613945)

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

**In-app purchases:** none


## Frequently asked questions

### Is Realink Security OTP (滙信保安編碼器) free?

Realink Security OTP (滙信保安編碼器) is free to download, with no in-app purchases.

### Is Gsmart Coach free?

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

### Do Realink Security OTP (滙信保安編碼器) or Gsmart Coach have ads?

Neither Realink Security OTP (滙信保安編碼器) nor Gsmart Coach shows ads.

### Which is updated more often, Realink Security OTP (滙信保安編碼器) or Gsmart Coach?

Realink Security OTP (滙信保安編碼器) ships an update every 3 weeks, and Gsmart Coach every 2 weeks. Most recently, Realink Security OTP (滙信保安編碼器) was updated on October 26, 2026 and Gsmart Coach on October 28, 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.*