Comparison

Image Ruler vs Easy Reference Measure

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

Easy Reference Measure

Transform your phone into a measuring tool using photos. Include a reference object like a ruler or coin to accurately determine the real-world size of anything in your image. Ideal for DIY, research, and hobbies.

Highlights
  • Accurate length measurement from photos
  • Use reference objects for scale
  • Zoom, pan, and reset gestures
  • Save and share annotated images
  • Measure complex shapes
Features
Read full description

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

Image Ruler4 screens
Easy Reference Measure4 screens

Verdict

The call

The clearest difference is rating: Easy Reference Measure at 5.0 against Image Ruler's 1.6. Easy Reference Measure also leads on in-app purchases (none vs 7) and ads (none vs shown). Image Ruler's advantage is ratings volume (45 vs 1). On price, monetization model, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Image Ruler sells 5 one-off in-app purchases. Easy Reference Measure asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Easy Reference Measure holds the better App Store score, 5.0 against 1.6. That said, the two scores are not equally well evidenced: Image Ruler has 45 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Image Ruler ships an update every 3 weeks, Easy Reference Measure every 9 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
Image Ruler versus Easy Reference Measure: the parameters behind the verdict, then further details
ParameterImage RulerEasy Reference Measure
PriceFreeFree
Rating1.6 (45 ratings)5.0 (1 ratings) — better
Positive reviews17.6% of reviews—
Number of ratings45 — better1
Update frequencyEvery 3 weeksEvery 9 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better16.6
Further details — not scored
Size47 MB4 MB
Age rating4+4+
DeveloperMartin SchurmannHideo Nose

In-app purchases

5 purchases

Image Ruler

One-time5
  • imageRulerPro$0.99
  • Small Tip2 variants$0.99
  • Medium Tip2 variants$2.99
Show 2 more
  • Big Tip$4.99
  • Big tip$4.99
None

Easy Reference Measure

No in-app purchases

Questions

Is Image Ruler free?
Image Ruler is free to download, with in-app purchases available.
Is Easy Reference Measure free?
Easy Reference Measure is free to download, with no in-app purchases.
Which has better reviews, Image Ruler or Easy Reference Measure?
Easy Reference Measure is rated higher. Image Ruler averages 1.6 out of 5 from 45 ratings, while Easy Reference Measure averages 5.0 from 1 ratings.
Do Image Ruler or Easy Reference Measure have ads?
Image Ruler shows ads; Easy Reference Measure does not.
Which is updated more often, Image Ruler or Easy Reference Measure?
Image Ruler ships an update every 3 weeks, and Easy Reference Measure every 9 days. Most recently, Image Ruler was updated on November 3, 2026 and Easy Reference Measure on October 30, 2026.

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