Comparison

Photo Measures vs Image Ruler

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

Head to head
About

Photo Measures

Easily measure and annotate dimensions directly onto your photos. Perfect for home improvement, real estate, or any project requiring precise measurements. Save, organize, and share your annotated images with ease.

Highlights
  • Draw measures directly on photos
  • Zoom for precision
  • Add text comments
  • Support for angles
  • Imperial or metric units
  • Organize photos by category
  • Export as PDF or JPG
Features
Currently charting
Read full description

Photo Measures is the most elegant and the easiest way to save measures on your own photos on iPhone and iPad! Architectural Digest - "Very useful when shopping or meeting with contractors" Tuaw.com - "It's perfect for your own work around the house, and handy for creating plans to bring to a contractor" AppSafari - "So incredibly convenient" Featured on the front page of the AppStore under New & Noteworthy and Staff Favorites in more than 70 countries, including the US, France, Germany and Canada. Recommended by many reference magazines, websites and blogs all around the world: Architectural Digest, Tuaw.com, This Old House, AppOfTheDay.com, AppSafari.com, etc... ◆◆◆◆◆ Constructing a house? Engineering a new project? Moving to a new place? Take some photos and note down the dimensions on the photos to remember the exact layout, and to make sure that everything will fit easily. Need to keep in mind the exact dimensions of an object? Just take a photo and quickly write them on it. Are you decorating? Want to buy a new frame or a new furniture but not sure it will fit? No problem since you can have all your house dimensions always with you! ◆◆◆◆◆ You are a real estate agent? A contractor? An engineer? A designer? Working in the construction industry? Someone who wants to keep his house's measure easily accessible? Whenever you need to save dimensions, sizes, angles or write down a detail you need to remember, Photo Measures will help you to be more efficient and more accurate. ◆◆◆◆◆ Photo Measures helps you to: . Take a photo and directly draw measures on it . Zoom into and out of your photo when you need more precision . Edit your measures with a very intuitive interface . Quickly add text as comments when measures are not enough . Native support for angles . Save your measures in imperial or metric units . Easily organize your photos by category . Export your dimensions in high resolution by email or to the photo library . Export as PDF or JPG . Import photos of any size and aspect ratio . Support Retina display Keep posted, a lot of new features are planned for the next versions!

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.

Screenshots

Photo Measures4 screens
Image Ruler4 screens

Verdict

The call

The clearest difference is review sentiment: Photo Measures at 89% against Image Ruler's 18%. Photo Measures also leads on rating (4.6 vs 1.6) and in-app purchases (none vs 7). Image Ruler's advantage is price (Free vs $6.99) and update cadence (every 3 weeks vs every 3 months). On 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

CostPrice · In-app purchases · Ads · Monetization

Image Ruler is free to download; Photo Measures costs $6.99 up front. Image Ruler sells 5 one-off in-app purchases. Photo Measures asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Photo Measures holds the better App Store score, 4.6 against 1.6. That said, the two scores are not equally well evidenced: Photo Measures has 530 ratings behind it against 45, so its average is the more settled of the two. Written reviews point the same way: 89% of Photo Measures's written reviews are positive against 18% of Image Ruler's.

UpkeepUpdate frequency

Photo Measures ships an update every 3 months, Image Ruler every 3 weeks. The most recent releases landed on November 10, 2026 and November 6, 2026 respectively.

Scorecard10 real differences · 1 level
Photo Measures versus Image Ruler: the parameters behind the verdict, then further details
ParameterPhoto MeasuresImage Ruler
Price$6.99Free — better
Rating4.6 (530 ratings) — better1.6 (45 ratings)
Positive reviews88.8% of reviews — better17.6% of reviews
Number of ratings530 — better45
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidFree — better
Best chart rank#46 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.1
Further details — not scored
Size25 MB47 MB
Age rating4+4+
DeveloperCubentMartin Schurmann

Customer experience

Photo Measures

All ratings524 ratings
Positive91.0%
Neutral2.3%
Negative6.7%
Written reviews803 reviews
Positive88.8%
Neutral4.9%
Negative6.4%

Image Ruler

All ratings45 ratings
Positive15.6%
Neutral0.0%
Negative84.4%
Written reviews17 reviews
Positive17.6%
Neutral0.0%
Negative82.4%

Bugs and requests

Photo Measures

Reported bugs

3 issues
  • Measurements not aligning properly with photos
  • App crashing or freezing
  • Inability to edit or delete measurements

Requested features

5 requests
  • Sync across devices (iCloud, Google Drive, etc.)
  • Ability to import/export PDFs
  • Integration with laser measuring tools
  • More advanced drawing/annotation tools
  • Improved photo organization and management

Image Ruler

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Photo Measures

No 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

Questions

Is Photo Measures free?
Photo Measures costs $6.99, with no in-app purchases.
Is Image Ruler free?
Image Ruler is free to download, with in-app purchases available.
Which has better reviews, Photo Measures or Image Ruler?
Photo Measures is rated higher. Photo Measures averages 4.6 out of 5 from 530 ratings, while Image Ruler averages 1.6 from 45 ratings.
Do Photo Measures or Image Ruler have ads?
Image Ruler shows ads; Photo Measures does not.
Which is updated more often, Photo Measures or Image Ruler?
Photo Measures ships an update every 3 months, and Image Ruler every 3 weeks. Most recently, Photo Measures was updated on November 10, 2026 and Image Ruler on November 6, 2026.

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