# x2y vs Key

The clearest difference is review sentiment: x2y at 88% against Key's 0%. x2y also leads on price (Free vs $0.99) and rating (5.0 vs 1.0). Key's advantage is in-app purchases (none vs 1) and iOS requirement (15.6 vs 26.0). On ads and device support there is nothing between them.

x2y is free to download; Key costs $0.99 up front. x2y sells 1 one-off in-app purchase. Key asks for nothing beyond the download.

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 Key's.

## The numbers

| Metric | x2y | Key |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/x2y/id568723132/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/key-tone-decoder/id6738107351/reviews) |
| Number of ratings | **8** | 1 |
| Positive reviews | **87.5% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | — |
| Monetization | **Free** | Paid |
| Size | 2 MB | 1 MB |
| Requires iOS | 26.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Joseph Cieplinski](https://appshunter.io/developer/568723135) | [NANO ELECTRONICS RESEARCH MUHENDISLIK ARASTIRMA GELISTIRME LIMITED SIRKETI](https://appshunter.io/developer/1674573382) |

## 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 |


### Key

[App page](https://appshunter.io/ios/app/key-tone-decoder/id6738107351)

This application uses your device's microphone to capture and decode dual-tone multi-frequency (DTMF) signals in real-time. It displays the decoded numbers instantly on your screen, making it a useful tool for professionals and tech enthusiasts.

**Highlights:** Real-time DTMF signal decoding, Uses device microphone, Displays decoded numbers instantly, Suitable for professionals, Useful for tech enthusiasts

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is x2y free?

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

### Is Key free?

Key costs $0.99, with no in-app purchases.

### Which has better reviews, x2y or Key?

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

### Do x2y or Key have ads?

Neither x2y nor Key shows ads.

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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.*