# AV Flash Sync vs Green

The clearest difference is in-app purchases: Green at none against AV Flash Sync's 1. AV Flash Sync's advantage is update cadence (every 19 months vs every 49 months) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. AV Flash Sync sells 1 one-off in-app purchase. Green asks for nothing beyond the download.

AV Flash Sync ships an update every 19 months, Green every 49 months. The most recent releases landed on October 17, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | AV Flash Sync | Green |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/av-flash-sync/id1207980707/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 19 months** | Every 49 months |
| Monetization | Free with in-app purchases | — |
| Size | 1 MB | 7 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [náhodný](https://appshunter.io/developer/431797361) | [ELC lighting bv](https://appshunter.io/developer/942270014) |

## What reviewers say

### AV Flash Sync

[App page](https://appshunter.io/ios/app/av-flash-sync/id1207980707)

Enhance your AV media recordings with a one-second tone and red flash. This tool aids in synchronizing audio and video during post-production, streamlining your workflow.

**Highlights:** Add one-second tone, Add red flash, Synchronize audio and video, Post-production tool, Media recording enhancement

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flash Sync Pro | $2.99 | one-time |


### Green

[App page](https://appshunter.io/ios/app/green-go-control-remote/id1497722398)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AV Flash Sync free?

AV Flash Sync is free to download, with in-app purchases available.

### Is Green free?

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

### Do AV Flash Sync or Green have ads?

Neither AV Flash Sync nor Green shows ads.

### Which is updated more often, AV Flash Sync or Green?

AV Flash Sync ships an update every 19 months, and Green every 49 months. Most recently, AV Flash Sync was updated on October 17, 2026 and Green on October 8, 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.*