Image Ruler vs Easy Reference Measure
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Image Ruler
This app allows you to measure objects directly on photos. Simply take a picture, mark a known object for reference, and then draw measurements on other items within the same image. It supports both metric and imperial units and offers intuitive editing tools.
- Measure objects on photos
- Use a known object as a reference
- Supports metric and imperial units
- Intuitive editing interface
- Organize photos easily
- Zoom for precision
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Measure anything in any photo. Take a photo or import one from your library, place a reference object you already know the size of, and instantly calculate real-world measurements — lengths, angles, and areas — directly on the image. How it works Set a reference line on a known object in your photo. From there, every measurement you draw is automatically calculated in real scale. What you can measure Ruler — measure distances and lengths Arrow — annotate with directional measurements Angle — measure the angle between any two lines Area — tap points to outline a surface and calculate its area Built for precision Works entirely offline — no internet required Metric and imperial units Pinch to zoom for precise point placement Undo and redo any change Hide or show your reference line at any time Tips for accurate results For best accuracy, make sure your reference object and the object you're measuring are in the same plane, and that the camera was parallel to both when the photo was taken. Perspective distortion affects results. Measurements are estimates based on the reference you provide.
Easy Reference Measure
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Measure real-world lengths directly from your photos—fast and simple! This app turns your smartphone into a powerful measuring tool. By including a reference object such as a ruler or a coin in your photo, you can instantly calculate the actual size of any object captured. Whether for research, DIY, or hobbies, this app makes measuring more accessible than ever. *Key Features Accurate length measurement from photos Use reference objects (rulers, coins, cards, etc.) to set the scale Zoom, pan, and reset gestures for precise control Double-tap to reset zoom and position Save and share annotated images with measurement results *How It Works Capture or Select a Photo Take a new photo with your camera or select one from your gallery. Make sure to include a reference object such as a ruler or a coin. Set Calibration Points Tap the start and end points of the reference object (e.g., the 0 cm and 10 cm marks of a ruler). Enter the real-world length between these two points to calibrate the scale. Measure the Object Tap the start and end points of the object you want to measure. The app instantly calculates and displays the actual length. Save and Share The measurement result is added as a clear annotation on the photo. Save the annotated image and share it via email, messaging apps, or social media. *Use Cases Check the size of pipes, screws, gaskets, etc. Measure materials and objects for DIY projects Document lengths for study and research Assist in laboratory, or experimental records Complex Shape Length Simple, intuitive, and reliable. With this app, your smartphone becomes a portable digital ruler—always ready when you need it.
Screenshots
Verdict
The clearest difference is in-app purchases: Easy Reference Measure at none against Image Ruler's 7. Easy Reference Measure also leads on update cadence (every 9 days vs every 3 weeks). On price, ads, device support 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. Image Ruler sells 5 one-off in-app purchases. Easy Reference Measure asks for nothing beyond the download.
Image Ruler ships an update every 3 weeks, Easy Reference Measure every 9 days. The most recent releases landed on October 4, 2026 and October 11, 2026 respectively.
| Parameter | Image Ruler | Easy Reference Measure |
|---|---|---|
| Price | Free | Free |
| Rating | 1.5 (44 ratings) — better | — |
| Positive reviews | 17.6% of reviews | — |
| Number of ratings | 44 — better | — |
| Update frequency | Every 3 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 16.6 |
| Further details — not scored | ||
| Size | 47 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Martin Schurmann | Hideo Nose |
In-app purchases
Image Ruler
- imageRulerPro$0.99
- Small Tip2 variants$0.99
- Medium Tip2 variants$2.99
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- Big Tip$4.99
- Big tip$4.99
Easy Reference Measure
No in-app purchases
Questions
Is Image Ruler free?
Is Easy Reference Measure free?
Do Image Ruler or Easy Reference Measure have ads?
Which is updated more often, Image Ruler or Easy Reference Measure?
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