# Cygnus Mobile Viewer vs CCTV Time Difference

The clearest difference is in-app purchases: Cygnus Mobile Viewer at none against CCTV Time Difference's 1. Cygnus Mobile Viewer also leads on device support (3 vs 1) and iOS requirement (8.0 vs 17.0). CCTV Time Difference's advantage is update cadence (every 2 days vs every 58 months). On price and ads there is nothing between them.

Both are free to download. CCTV Time Difference sells 1 one-off in-app purchase. Cygnus Mobile Viewer asks for nothing beyond the download.

Cygnus Mobile Viewer ships an update every 58 months, CCTV Time Difference every 2 days. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Cygnus Mobile Viewer | CCTV Time Difference |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 58 months | **Every 2 days** |
| Size | 111 MB | 4 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Cygnus Electronics SA](https://appshunter.io/developer/1464839514) | [Poul Laustsen](https://appshunter.io/developer/1689405640) |

## What reviewers say

### Cygnus Mobile Viewer

[App page](https://appshunter.io/ios/app/cygnus-mobile-viewer/id1464839515)

**Features:** macOS Compatibility

**In-app purchases:** none


### CCTV Time Difference

[App page](https://appshunter.io/ios/app/cctv-time-difference/id6808506463)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock CCTV Time Difference | $2.99 | one-time |


## Frequently asked questions

### Is Cygnus Mobile Viewer free?

Cygnus Mobile Viewer is free to download, with no in-app purchases.

### Is CCTV Time Difference free?

CCTV Time Difference is free to download, with in-app purchases available.

### Do Cygnus Mobile Viewer or CCTV Time Difference have ads?

Neither Cygnus Mobile Viewer nor CCTV Time Difference shows ads.

### Which is updated more often, Cygnus Mobile Viewer or CCTV Time Difference?

Cygnus Mobile Viewer ships an update every 58 months, and CCTV Time Difference every 2 days. Most recently, Cygnus Mobile Viewer was updated on October 26, 2026 and CCTV Time Difference 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.*