RadixRoll vs Plain MEMO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RadixRoll
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.
- 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
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RadixRoll is a neat pedagogic radix converter developed by ApplicVision. The application is available on both iPhone and iPad and lets you easily shift between decimal, hexadecimal, binary and roman numbers. Number Ranges: Decimal: 99999999 Hexadecimal: FFFFFFF (268435455) Binary: 1111111111111111 (65535) Roman: MMMCMXCIX (3999) On iPad you can change all four radix scrolls at the same time, and on iPhone there's a slider to set which two number bases you want to display and convert between.
Plain MEMO
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Plain MEMO is an intuitive application designed to help you effortlessly capture and manage your memos. With Plain MEMO, you can quickly jot down notes, ideas, and reminders, keeping everything organized in one place. The app's user-friendly interface ensures you can easily create, edit, and categorize your memos for efficient management. Whether it's a quick thought, a shopping list, or a detailed plan, Plain MEMO makes it simple to keep track of all your important information. Stay organized and on top of your notes with the simplicity and convenience of Plain MEMO.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | RadixRoll | Plain MEMO |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (5 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 44 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 9 MB | 100 MB |
| Age rating | 4+ | 4+ |
| Developer | ApplicVision | Hyobeom Han |
In-app purchases
RadixRoll
No in-app purchases
Plain MEMO
No in-app purchases
Questions
Is RadixRoll free?
Is Plain MEMO free?
Do RadixRoll or Plain MEMO have ads?
Which is updated more often, RadixRoll or Plain MEMO?
Other comparisons
