Ruler® vs Ruler 2.0
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ruler®
This app provides a versatile toolkit for all your measurement needs. It includes a classic ruler, a tape measure, and a camera ruler for precise measurements. Easily switch between units and document your findings by adding measurements directly to photos.
- Classic ruler and tape measure
- Camera ruler mode
- Photo measures mode
- Dual unit support (inches/cm)
- Precision sliders for small objects
- Elegant and user-friendly interface
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Your Comprehensive Ruler Solution for Your Phone! Experience the ultimate ruler toolkit on your phone, featuring a classic ruler, a tape measure, and a camera ruler. Key Features: - Elegant Design: Enjoy a stylish and user-friendly interface for all your measurement needs. - Dual Units: Easily switch between inches and centimeters for versatile measuring. - Precision Sliders: Accurately measure small objects with intuitive sliders. - Camera Ruler Mode: Utilize your phone's camera to measure objects seamlessly. - Photo Measures Mode: Add measurement data directly to your photos for organized documentation. Make every measurement a breeze with our complete ruler solution! Download now for a sleek and efficient measuring experience. Terms Of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ruler 2.0
This app provides a precise on-screen measuring tool for your iPhone or iPad. Easily measure length and width in centimeters, millimeters, or inches, with options to save measurements as photos and customize the ruler's appearance. It's designed for accurate, user-friendly measurements.
- On-screen ruler
- Measure length and width
- Centimeters, millimeters, inches
- Save measurements as photos
- 3 ruler color options
- Manual measurement adjustment
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Ruler 2.0 - ruler app for high measurement accuracy on the iPhone and iPad. Accurate, exact, precise, precision, correct, true, easy to use and free - these are the words that can describe this ruler app the best way. - Save the measurement as a photo - 3 colors of the ruler for your comfort - Centimeters, millimeters or inches - Measure the length only or width and length at the same time Tap on the measurement result to change it manually. Pan with two fingers anywhere on the screen for even higher accuracy. Measure every length and width with precision on-screen Ruler 2.0. Choose your preferred units of measurement - inches (inch), centimeters (cm) or millimeters (mm). Metric and Imperial systems are supported. Use on-screen ruler as you wish. Tap "Save" button to save the result to the Camera Roll of your device.
Screenshots
Verdict
The clearest difference is in-app purchases: Ruler 2.0 at none against Ruler®'s 2. Ruler 2.0 also leads on iOS requirement (12.0 vs 15.0). Ruler®'s advantage is rating (4.3 vs 3.9) and ratings volume (35K vs 205). On price, review sentiment, 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. Ruler® sells 2 in-app purchases, starting at $1.99 per 7 days. Ruler 2.0 asks for nothing beyond the download.
Ruler® holds the better App Store score, 4.3 against 3.9. That said, the two scores are not equally well evidenced: Ruler® has 35K ratings behind it against 205, so its average is the more settled of the two. Written reviews complicate that: 22% of Ruler®'s written reviews are positive against 30% of Ruler 2.0's, so the app with the better star average is not the one people write more warmly about.
Ruler® ships an update every 2 months, Ruler 2.0 every 5 months. The most recent releases landed on October 21, 2026 and October 20, 2026 respectively.
| Parameter | Ruler® | Ruler 2.0 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (35K ratings) — better | 3.9 (205 ratings) |
| Positive reviews | 21.9% of reviews | 29.6% of reviews — better |
| Number of ratings | 35K — better | 205 |
| Update frequency | Every 2 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 22 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Tue Nguyen Minh | Oleg Osipov |
Customer experience
Ruler®
Ruler 2.0
User reviews
Ruler®
From 35K App Store ratingsWhat we love
- 🚀 Accurate measurements
- 👍 Easy to use
- 🔍 Convenient for small items
- 📏 Useful ruler tool
Room to improve
- 💰 Paywall for basic features
- ⏱️ Limited free usage time
- 🔍 Inaccurate for larger objects
- 🙅♀️ Aggressive monetization tactics
Ruler 2.0
From 205 App Store ratingsWhat we love
- 👍 Simple and easy to use
- 💡 Precise measurements (when working)
- ✨ Free with no ads
- ✅ Lightweight and small size
- 🎯 Good for small item measurements
Room to improve
- 🐛 Frequent crashes
- 📏 Inaccurate measurements on newer phones
- 📱 Not optimized for high DPI screens
- 📉 Scale is off by ~50% on newer models
- ⚠️ Support link is shady
Bugs and requests
Ruler®
Reported bugs
2 issues- Inconsistent measurements
- Compatibility issues with newer devices
Requested features
3 requests- Ability to switch between metric and imperial units without paying
- Improved accuracy for larger measurements
- Removal of time limits on free usage
Ruler 2.0
Reported bugs
8 issues- Crashes after a few seconds
- Keeps crashing
- Wrong scale/dimension measurement on newer iPhones (13, 14, 15 series, SE 2022)
- Inches are too small (e.g., 1cm shows as smaller than 4mm)
- Measurements are off by about half
Show 3 moreShow fewer
- Screen scale wrong (1cm showing smaller than 4mm)
- Grid is shrunk on newer iPhones
- App frequently corrects '20' to '2.0'
Requested features
7 requests- Update for newer iPhone displays (high DPI)
- Manual adjustment for screen size/resolution
- Add option to manually enter dimensions
- Add inch fractions as measurement option
- Allow adjustable text font size when saving
Show 2 moreShow fewer
- Implement lighter background option (plain white)
- Make the measuring line not reset based on finger position
In-app purchases
Ruler®
- Ruler Pro (Weekly)3 Days trial$1.997 Days
- Pro Features$1.99
Ruler 2.0
No in-app purchases
