# HHDLINK vs Syn

The clearest difference is update cadence: Syn at every 2 weeks against HHDLINK's every 5 months. HHDLINK's advantage is iOS requirement (12.0 vs 14.0). 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.

HHDLINK ships an update every 5 months, Syn every 2 weeks. The most recent releases landed on October 5, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | HHDLINK | Syn |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Size | 62 MB | 22 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen HHD Technology Co.,ltd](https://appshunter.io/developer/1653104867) | [Synergos Systems Company Limited](https://appshunter.io/developer/1777215731) |

## What reviewers say

### HHDLINK

[App page](https://appshunter.io/ios/app/hhdlink/id6444210648)

**Features:** macOS Compatibility

**In-app purchases:** none


### Syn

[App page](https://appshunter.io/ios/app/syn-crm/id6773166105)

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

**In-app purchases:** none


## Frequently asked questions

### Is HHDLINK free?

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

### Is Syn free?

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

### Do HHDLINK or Syn have ads?

Neither HHDLINK nor Syn shows ads.

### Which is updated more often, HHDLINK or Syn?

HHDLINK ships an update every 5 months, and Syn every 2 weeks. Most recently, HHDLINK was updated on October 5, 2026 and Syn on October 13, 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.*