Comparison

x2y vs AV Flash Sync

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

x2y

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
Read full description

Sure, we all know how to cross-multiply. But if you do lots of resizing calculations every day, you can save yourself hours with this simple application. x2y is a beautifully simple aspect ratio calculator for the iPad, iPhone, or iPod touch. Built for designers and web developers who need to resize images and videos in code, x2y calculates dimensions and percentages for you automatically. Just choose the original aspect ratio or size, enter one of the new desired dimensions or a percentage, and the missing dimension(s) will be calculated instantly. • Choose from a list of common aspect ratios for even faster calculations. • Customize the list of common aspect ratios to include your own. • Swap the x and y coordinates as needed with a single tap • Double or triple the dimensions of your outputed images with a single tap. (Great for figuring out those @2x and @3x dimensions quickly.) • Half or one-third the dimensions of your outputed images with a single long tap. • Solve for either x or y dimension. • Solve for a particular percentage. • Solve for diagonal of both ratios • Round to the nearest pixel, or show up to three decimal places, for more precise results. • On iPad, choose left or right handed layouts, for better placement of commonly used interface controls. • Select from several different color themes, to suit your preference • Sync your custom aspects, selected theme, and more, between all your iOS devices over iCloud. x2y conforms to the size of your screen. It is fully compliant with Voice Over for the visually impaired. Use the in-app help guide to learn more about all the features of this app. If you have suggestions for additional common aspect ratios, or if you’d like to see other features added, feel free to contact me via the support link.

About

AV Flash Sync

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
Read full description

Quickly add a one second tone and red flash to your AV media recording and then use it to synchronize audio and video in post production.

Screenshots

x2y4 screens
AV Flash Sync4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard6 real differences · 4 level
x2y versus AV Flash Sync: the parameters behind the verdict, then further details
Parameterx2yAV Flash Sync
PriceFreeFree
Rating5.0 (8 ratings) — better1.0 (1 ratings)
Positive reviews87.5% of reviews — better0.0% of reviews
Number of ratings8 — better1
Update frequencyEvery 5 months — betterEvery 19 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.012.0 — better
Further details — not scored
Size2 MB1 MB
Age rating4+4+
DeveloperJoseph Cieplinskináhodný

Customer experience

x2y

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews8 reviews
Positive87.5%
Neutral12.5%
Negative0.0%

AV Flash Sync

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

1 purchases

x2y

One-time1
  • Premium$2.49
1 purchases

AV Flash Sync

One-time1
  • Flash Sync Pro$2.99

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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