# RadixRoll vs Plain MEMO

The clearest difference is update cadence: Plain MEMO at every 6 days against RadixRoll's every 44 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

RadixRoll ships an update every 44 months, Plain MEMO every 6 days. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | RadixRoll | Plain MEMO |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | Every 44 months | **Every 6 days** |
| Monetization | Free | — |
| Size | 9 MB | 100 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ApplicVision](https://appshunter.io/developer/528375637) | [Hyobeom Han](https://appshunter.io/developer/1739693153) |

## 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


### Plain MEMO

[App page](https://appshunter.io/ios/app/plain-memo/id6504782512)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RadixRoll free?

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

### Is Plain MEMO free?

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

### Do RadixRoll or Plain MEMO have ads?

Neither RadixRoll nor Plain MEMO shows ads.

### Which is updated more often, RadixRoll or Plain MEMO?

RadixRoll ships an update every 44 months, and Plain MEMO every 6 days. Most recently, RadixRoll was updated on October 7, 2026 and Plain MEMO on October 1, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*