RadixRoll vs Wonder Ruler
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
Read full descriptionHide full description
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.
Wonder Ruler
Read full descriptionHide full description
Why carry a physical tape measure when you have the power of Wonder Ruler? Designed for everyone from DIY hobbyists and home improvers to professional architects and interior designers, Wonder Ruler bridges the gap between physical reality and digital precision. Whether you're hanging a picture frame, planning a room renovation, or documenting construction progress, our app delivers professional-grade measurements with the convenience of a tap. ## Key Features That Set Us Apart **Smart Photo Annotation (Mark & Measure)** Don't rely on memory. Simply snap a photo, draw lines directly on the image, and add labels or comments. It's the perfect way to visualize projects and communicate exact requirements to your team or family. Imagine this: you're standing in a client's living room, and they want to know if their sofa will fit along the far wall. Instead of scribbling numbers on the back of a receipt, you snap a photo, draw the dimensions right on the image, add a note—"sofa goes here, 2.4m clearance"—and send it off. They see exactly what you see. No confusion, no back-and-forth, no costly mistakes. Whether you're a contractor sending progress updates, a designer presenting a layout concept, or a homeowner explaining a renovation idea to your partner, annotated photos turn vague descriptions into crystal-clear communication. **Versatile Measurement Modes** Every task is different. That's why we offer multiple ways to measure: - Advanced AR (Augmented Reality): Instantly measure 3D distances and volumes in real-time. - Physical Reference Mode: For ultimate precision, use a physical object as a scale reference. - Point-to-Point Tracking: Manual, granular control for those hard-to-reach or tricky surfaces. **Measure Anything, Anywhere** Stop struggling with straight-line rulers. Wonder Ruler tracks curves, irregular shapes, and complex multi-segment paths, giving you the flexibility to measure anything from a curved tabletop to an entire room's perimeter. ## A Professional Toolkit in Your Pocket **Precision Height Meter** Get floor-to-ceiling heights in a heartbeat. **Digital Spirit Level** Achieve perfect horizontal and vertical alignment with high-sensitivity, real-time feedback. **Length & Width** Calculate dimensions instantly for flooring, wall paint, or furniture placement. **Professional PDF Reports** Stop taking scattered notes. With one tap, Wonder Ruler compiles your measurements, annotated photos, and project data into a clean, professional-looking PDF report. Easily email, print, or share them with clients, contractors, or suppliers. ## Why Choose Wonder Ruler? **Pro-Grade Algorithms** Built on the latest iOS ARKit technology, our app provides stable, reliable results even in challenging lighting conditions. **Intuitive & Streamlined** No steep learning curve. Our interface is clean, modern, and built for speed—get your measurement done in seconds. **The All-in-One Solution** Replace your physical tape, spirit level, and notebook. Wonder Ruler is the only tool you need to get the job done right, the first time. ## Subscription Service When you subscribe to the "VIP Subscription" service, you will enjoy the following benefits: 1. Unrestricted access to all features. 2. AI content recommendations based on usage habits. Payment for subscriptions is straightforward—the user's iTunes account is credited immediately after confirmation of purchase and payment. Please note that the Apple iTunes account will be automatically debited 24 hours prior to expiration. Upon successful deduction, the subscription term will be extended by one subscription cycle. User Agreement: https://www.wonderda.com/agreement.html Privacy Agreement: https://www.wonderda.com/privacy.html ## Ready to start your next project with confidence? Download Wonder Ruler today and experience the future of measurement. Your space, simplified.
Screenshots
Verdict
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.
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. 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.
| Parameter | RadixRoll | Wonder Ruler |
|---|---|---|
| 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 | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 9 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | ApplicVision | 小利 薛 |
In-app purchases
RadixRoll
No in-app purchases
Wonder Ruler
- VIP Subscription Service$1.991 Month









