Measure Tools vs Image Ruler
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Measure Tools
Capture photos or import from your gallery to annotate measurements, angles, and text notes. Save and share your annotated images easily. An essential tool for professionals and general users alike.
- Annotate measurements on images
- Add angle and text notes
- Support for multiple units (meters, feet, etc.)
- Zoom for precision
- Organize images in folders
- Export and share images via email
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Measure Tools Linea is an application which allows the user to take photographs or import from the gallery and take note of different measures. In addition to saving this information, the user can also share these pictures directly on their iPhone or iPad. An essential tool for architects, engineers, real estate agents and civil construction technicians. General users will also find this tool very useful. Linea Measure Tools application also presents the innovative ultra-thin laminated stoneware from range LINEA by Margres. With only 3mm thickness and available in large dimensions which can go up to 3mx1m. Linea laminated stoneware offers new architectural solutions. How it works: Take a photo of the object you need to mark and save the measurements. Next, in an intuitive and user friendly manner, you can include your notes using arrows, angles and text. The picture can then be saved and shared. Features: - take note and save dimensions of an object in an image; - take note and save angle amplitudes in an image; - take note and save text notes in an image; - registers several measure units: meter, centimeter, foot, yard; - zoom in and out when you need more precision; - export or send a final image via email; - organize pictures in folders; - view the LINEA catalogue.
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.
Screenshots
Verdict
The clearest difference is rating: Measure Tools at 2.4 against Image Ruler's 1.5. Measure Tools also leads on in-app purchases (none vs 7) and review sentiment (30% vs 18%). Image Ruler's advantage is update cadence (every 3 weeks vs every 2 months) and ratings volume (44 vs 5). On price, ads, 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. Image Ruler sells 5 one-off in-app purchases. Measure Tools asks for nothing beyond the download.
Measure Tools holds the better App Store score, 2.4 against 1.5. That said, the two scores are not equally well evidenced: Image Ruler has 44 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 30% of Measure Tools's written reviews are positive against 18% of Image Ruler's.
Measure Tools ships an update every 2 months, Image Ruler every 3 weeks. The most recent releases landed on June 5, 2026 and August 6, 2026 respectively.
| Parameter | Measure Tools | Image Ruler |
|---|---|---|
| Price | Free | Free |
| Rating | 2.4 (5 ratings) — better | 1.5 (44 ratings) |
| Positive reviews | 30.0% of reviews — better | 17.6% of reviews |
| Number of ratings | 5 | 44 — better |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 6.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 46 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | Critec, Lda | Martin Schurmann |
Customer experience
Measure Tools
Image Ruler
In-app purchases
Measure Tools
No 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








