AR Ruler vs Convertal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AR Ruler
Measure objects and spaces using your phone's camera. Create 3D floor plans, check if surfaces are level, and save your measurements with dimensions. Supports multiple units for domestic and international use.
- Measure length, height, and width
- Generate 3D floor plans
- Digital bubble level
- Save and share measurements
- Supports cm, inches, and meters
- Automatic history storage
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Have you ever encountered such a situation? I want to measure if the table can hold the newly purchased desk lamp, but the tape measure is missing. I want to know if this wall painting will be crooked, but I don't have a spirit level at hand. I want to plan the layout of the room, but I have no idea about the size. The AR portable ruler is designed for these moments. No need for a physical ruler, simply open the camera to measure. What can it do for you? Measure things Aim at the object, click on it, and the length, height, and width will be displayed. Tables, cabinets, boxes, packages, everything has energy. There is no problem with vertical surfaces, just scan the walls, floors, and door frames with a camera. Painting Room Scan the entire room and automatically generate a 3D floor plan. It's easy to see where the door is, where the window is, and what the size is. Measure before moving, compare before buying furniture, to avoid finding that you can't fit it when you come back. leveling Hanging paintings, installing shelves, setting up projectors, placing your phone up, the digital bubble level will tell you if it's crooked. Accurate to 0.1 °, much more reliable than the naked eye. Write it down The measurement results can be photographed and saved, labeled with dimensions, and sent to family members or designers with just one click. All records are automatically stored in the history list and can be viewed at any time without being lost. Cut units Use whichever you want, centimeters, inches, meters. It can be used both domestically and internationally. The measurement results are for reference only and may have errors. Please do not use them for precision engineering or professional measurements. Subscription instructions: Weekly subscription: $3.99/week Annual subscription: $39.99/year Auto Renewal: The fee will be automatically deducted within 24 hours before expiration. Please manage it in iOS Settings>Apple ID>Subscription. The payment will be automatically deducted 24 hours before the end of the probation period. Privacy Policy: https://www.kdocs.cn/l/cmHuyhzHP2tf User Agreement: https://www.kdocs.cn/l/cid1rO8c0AKd
Convertal
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Convertal is a fast, clean unit converter — for everyday conversions and the obscure ones too. Type in either box and the result updates live, then swap units with a tap. No sign-up, no clutter, and it works offline (except live currency and crypto rates). Free • Length, weight and temperature conversions • Hundreds of units, with metric / US / UK defaults detected for your region • Live dual-box conversion, swap, copy, and save with a note • Light and dark themes, adjustable decimal precision and scientific notation Convertal Pro — monthly, yearly or lifetime — unlocks everything: • 20+ categories: area, volume, speed, data storage, data rate, energy, power, pressure, frequency, angle, force, torque, fuel economy, density, flow rate, cooking, number bases, currency and cryptocurrency, and more • Removes ads Live currency and crypto rates are cached for offline use. Everything else works with no connection at all. Convert anything, instantly. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://convertal.co.uk/privacy.html
Screenshots
Verdict
The clearest difference is ads: AR Ruler at none against Convertal's shown. Convertal's advantage is update cadence (every 2 weeks vs every 2 months) and device support (4 vs 2). On price, in-app purchases and iOS requirement 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. AR Ruler sells 2 in-app purchases, starting at $3.99 per 7 days and Convertal sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
AR Ruler ships an update every 2 months, Convertal every 2 weeks. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.
| Parameter | AR Ruler | Convertal |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Subscription | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 16.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 29 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | 洋洋 常 | ASIL SOFTWARE LIMITED |
In-app purchases
AR Ruler
- Weekly Member3 Days trial$3.997 Days
- Annual subscription$39.991 Year
Convertal
- Convertal Pro$0.991 Month
- Convertal Pro$5.991 Year
- Convertal Pro$12.99









