# RadixRoll vs Wonder Ruler

The clearest difference is in-app purchases: RadixRoll at none against Wonder Ruler's 1. RadixRoll also leads on iOS requirement (12.0 vs 16.0). Wonder Ruler's advantage is update cadence (monthly vs every 44 months). On price, ads and device support there is nothing between them.

Both are free to download. Wonder Ruler sells 1 in-app purchase, starting at $1.99 per month. RadixRoll asks for nothing beyond the download.

RadixRoll ships an update every 44 months, Wonder Ruler monthly. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | RadixRoll | Wonder Ruler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (5 ratings)](https://appshunter.io/ios/app/radixroll/id946732716/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 44 months | **Monthly** |
| Monetization | Free | — |
| Size | 9 MB | 10 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ApplicVision](https://appshunter.io/developer/528375637) | [小利 薛](https://appshunter.io/developer/1675817893) |

## What reviewers say

### RadixRoll

[App page](https://appshunter.io/ios/app/radixroll/id946732716)

Easily convert numbers between decimal, hexadecimal, binary, and Roman numeral systems. Supports a wide range of values and offers synchronized scrolling on iPad for efficient conversion.

**Highlights:** Decimal to Hexadecimal conversion, Hexadecimal to Binary conversion, Binary to Roman numeral conversion, Roman numeral to Decimal conversion, Synchronized scrolling on iPad, Slider for two-base conversion on iPhone

**Features:** macOS Compatibility

**In-app purchases:** none


### Wonder Ruler

[App page](https://appshunter.io/ios/app/wonder-ruler-camera-ruler/id6758812423)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP Subscription Service | $1.99 | per month |


## Frequently asked questions

### Is RadixRoll free?

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

### Is Wonder Ruler free?

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

### Do RadixRoll or Wonder Ruler have ads?

Neither RadixRoll nor Wonder Ruler shows ads.

### Which is updated more often, RadixRoll or Wonder Ruler?

RadixRoll ships an update every 44 months, and Wonder Ruler monthly. Most recently, RadixRoll was updated on November 1, 2026 and Wonder Ruler on October 31, 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.*