Ruler® vs Screen Ruler
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/
Screen Ruler
Turn your iPhone or iPad into a precise measuring tool. Easily measure lengths in centimeters or inches with features like magnifier mode and haptic feedback. Ideal for daily tasks, office use, DIY projects, and on-the-go measurements.
- Dual units (cm/inches)
- Precision calibration
- Magnifier mode
- Haptic feedback
- Clean interface
- Save and label measurements
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Turn your iPhone or iPad into a calibratable digital ruler for measuring small objects directly on the screen. Screen Ruler supports centimeters and inches, magnifier-assisted alignment, and haptic feedback. Measure Small Objects on Your Screen Use Screen Ruler for stationery, frames, craft materials, and other small objects that fit along your device screen. Place the object directly on the screen, move the measurement marks to its edges, and read the length. Core Features • Calibratable ruler: Match the scale to an object of known length and save calibration for your device. • CM and inch scales: Switch between centimeters and inches for everyday measurements. • Magnifier assist: Align measurement marks with object edges more confidently. • Haptic feedback: Feel subtle feedback while adjusting the marks. How to Get More Reliable Results For best results, place the object directly on the screen and check the scale against a known length. Calibrate the ruler if you notice an offset. Accuracy and Limitations Screen Ruler is designed for short, everyday measurements. Accuracy depends on device calibration, screen placement, and how precisely the marks are aligned. It does not use the camera or AR and is not intended for measuring rooms or large objects. Feedback: ankek1er@gmail.com
Screenshots
Verdict
The clearest difference is rating: Ruler® at 4.3 against Screen Ruler's 3.7. Ruler® also leads on ads (none vs shown) and ratings volume (35K vs 24). Screen Ruler's advantage is review sentiment (55% vs 22%) and iOS requirement (13.0 vs 15.0). On price, in-app purchases, monetization model 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 and Screen Ruler sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Ruler® holds the better App Store score, 4.3 against 3.7. That said, the two scores are not equally well evidenced: Ruler® has 35K ratings behind it against 24, so its average is the more settled of the two. Written reviews complicate that: 22% of Ruler®'s written reviews are positive against 55% of Screen Ruler's, so the app with the better star average is not the one people write more warmly about.
Ruler® ships an update every 6 weeks, Screen Ruler every 3 months. The most recent releases landed on September 24, 2026 and September 20, 2026 respectively.
| Parameter | Ruler® | Screen Ruler |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (35K ratings) — better | 3.7 (24 ratings) |
| Positive reviews | 21.9% of reviews | 54.8% of reviews — better |
| Number of ratings | 35K — better | 24 |
| Update frequency | Every 6 weeks — better | Every 3 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 25 MB | 19 MB |
| Age rating | 4+ | +4 |
| Developer | Tue Nguyen Minh | 向阳 杨 |
Customer experience
Ruler®
Screen Ruler
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
Screen Ruler
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Ruler®
- Ruler Pro (Weekly)3 Days trial$1.997 Days
- Pro Features$1.99
Screen Ruler
- Ads-free experience$1.99
- Support for a cup of coffee$2.99
Questions
Is Ruler® free?
Is Screen Ruler free?
Which has better reviews, Ruler® or Screen Ruler?
Do Ruler® or Screen Ruler have ads?
Which is updated more often, Ruler® or Screen Ruler?
Other comparisons
