# ViewBack vs MatchBox Glass

The clearest difference is update cadence: MatchBox Glass at every 3 months against ViewBack's every 21 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.

ViewBack ships an update every 21 months, MatchBox Glass every 3 months. The most recent releases landed on October 17, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | ViewBack | MatchBox Glass |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.1 (7 ratings)](https://appshunter.io/ios/app/matchbox-glass/id1503016890/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 3 months** |
| Monetization | — | Free |
| Size | 12 MB | 6 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vislink](https://appshunter.io/developer/1263969601) | [Hitomi Ltd](https://appshunter.io/developer/1503016889) |

## What reviewers say

### ViewBack

[App page](https://appshunter.io/ios/app/viewback/id1263969602)

**Features:** macOS Compatibility

**In-app purchases:** none


### MatchBox Glass

[App page](https://appshunter.io/ios/app/matchbox-glass/id1503016890)

This tool precisely measures lip-sync and video timing alignment for broadcast professionals. It helps ensure accurate audio-visual synchronization from camera to studio equipment.

**Highlights:** Precise lip-sync measurement, Video to video timing alignment, Latency measurement, AV sync from camera/mic to analyzer, Supports remote production and news gathering

**In-app purchases:** none


## Frequently asked questions

### Is ViewBack free?

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

### Is MatchBox Glass free?

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

### Do ViewBack or MatchBox Glass have ads?

Neither ViewBack nor MatchBox Glass shows ads.

### Which is updated more often, ViewBack or MatchBox Glass?

ViewBack ships an update every 21 months, and MatchBox Glass every 3 months. Most recently, ViewBack was updated on October 17, 2026 and MatchBox Glass on October 7, 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.*