RadixRoll vs The Calculo
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.
The Calculo
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A very simple calculator with basic functions for your iPhone and iPad. Beautiful design, good usability. Hope this app will benefit the owner.
Screenshots
Verdict
The clearest difference is update cadence: The Calculo at every 2 months 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, The Calculo every 2 months. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.
| Parameter | RadixRoll | The Calculo |
|---|---|---|
| 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 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 9 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | ApplicVision | Anton Gorlov |
In-app purchases
RadixRoll
No in-app purchases
The Calculo
No in-app purchases
