# x2y vs AV Flash Sync

The clearest difference is review sentiment: x2y at 88% against AV Flash Sync's 0%. x2y also leads on rating (5.0 vs 1.0) and monetization model (free vs free with in-app purchases). AV Flash Sync's advantage is iOS requirement (12.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. x2y sells 1 one-off in-app purchase and AV Flash Sync sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

x2y holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: x2y has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 88% of x2y's written reviews are positive against 0% of AV Flash Sync's.

x2y ships an update every 5 months, AV Flash Sync every 19 months. The most recent releases landed on October 1, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | x2y | AV Flash Sync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/x2y/id568723132/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/av-flash-sync/id1207980707/reviews) |
| Number of ratings | **8** | 1 |
| Positive reviews | **87.5% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 19 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 1 MB |
| Requires iOS | 26.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Joseph Cieplinski](https://appshunter.io/developer/568723135) | [náhodný](https://appshunter.io/developer/431797361) |

## What reviewers say

### x2y

[App page](https://appshunter.io/ios/app/x2y/id568723132)

This app simplifies aspect ratio calculations for designers and web developers. It quickly computes missing dimensions or percentages for images and videos, offering custom aspect ratios and quick scaling options.

**Highlights:** Automatic dimension and percentage calculation, Customizable common aspect ratios, Quick scaling (double, triple, half, one-third), Solve for x, y, or percentage, Solve for diagonal, Pixel rounding or decimal precision, Left/right-handed layout options on iPad

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $2.49 | one-time |


### 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 |


## Frequently asked questions

### Is x2y free?

x2y is free to download, with in-app purchases available.

### Is AV Flash Sync free?

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

### Which has better reviews, x2y or AV Flash Sync?

x2y is rated higher. x2y averages 5.0 out of 5 from 8 ratings, while AV Flash Sync averages 1.0 from 1 ratings.

### Do x2y or AV Flash Sync have ads?

Neither x2y nor AV Flash Sync shows ads.

### Which is updated more often, x2y or AV Flash Sync?

x2y ships an update every 5 months, and AV Flash Sync every 19 months. Most recently, x2y was updated on October 1, 2026 and AV Flash Sync on October 17, 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.*