# AV Flash Sync vs PROgress

The clearest difference is in-app purchases: PROgress at none against AV Flash Sync's 1. PROgress also leads on update cadence (every 2 days vs every 19 months). AV Flash Sync's advantage is iOS requirement (12.0 vs 26.2). On price, ads and device support there is nothing between them.

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

AV Flash Sync ships an update every 19 months, PROgress every 2 days. The most recent releases landed on October 17, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | AV Flash Sync | PROgress |
| --- | --- | --- |
| 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 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 1 MB | 1 MB |
| Requires iOS | **12.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [náhodný](https://appshunter.io/developer/431797361) | [Pratik Gadhesariya](https://appshunter.io/developer/1776080366) |

## 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 |


### PROgress

[App page](https://appshunter.io/ios/app/progress-day-counter-and-goals/id6759677969)

**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 PROgress free?

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

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

Neither AV Flash Sync nor PROgress shows ads.

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

AV Flash Sync ships an update every 19 months, and PROgress every 2 days. Most recently, AV Flash Sync was updated on October 17, 2026 and PROgress 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.*