Image Ruler vs ImageMeter
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.
ImageMeter
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ImageMeter puts measurements and notes directly into your photos. No more hand-drawn sketches that nobody understands: take a photo on site, draw the dimensions where they belong, add notes, detail images, or audio notes, and send a clear document to your clients and colleagues. ImageMeter is used by tradespeople, carpenters, kitchen and interior designers, property managers, sign makers, insurance assessors and many more. ENTER MEASUREMENTS YOUR WAY • Bluetooth laser meters: send measurements straight into the image. ImageMeter supports most laser distance meters with Bluetooth and, where the device allows it, triggers measurements remotely (https://imagemeter.com/manual/bluetooth/devices). • Measure in the image: set a reference, such as a known wall size, a sheet of paper or a known length, and ImageMeter calculates lengths and areas, even on surfaces seen in perspective. • Or simply type in the values from your tape measure. TOOLS FOR EVERY JOB • Lengths, areas, angles, circles and rectangles • Measurement strings and polylines • Counting tool • Text notes, freehand drawings and arrows • Audio notes and detail pictures inside the image • Line styles, colors, font sizes and arrowheads • Brightness, contrast and saturation for poorly lit photos PDF PLANS Import floor plans and drawings from PDF files. ImageMeter takes the scale of the drawing into account, so you can measure right on the plan. EXPORT AND SHARE • Images as JPEG or PNG, annotated PDF documents and PDF reports • Data tables for bills of materials or measurement logs, ready for your spreadsheet • Editable image files for other ImageMeter users YOUR CLOUD, YOUR DATA Sync your images with the cloud storage of your choice: OneDrive, Dropbox, Google Drive, your own Nextcloud/WebDAV server or SFTP. Continue working on your office computer with ImageMeter for macOS, Windows and Linux. FREE, PRO AND BUSINESS ImageMeter is free to download and try. The free version has a limited number of measurements per image, and exported images carry a watermark. Pro (one-time purchase) adds: unlimited measurements, no watermarks, PDF import and annotation, subfolders, unlimited range for Bluetooth laser meters, circles and rectangles, measurement strings, counting tool, perspective length measurement and audio notes. Business (monthly or yearly subscription) includes everything in Pro, plus image sync between your devices and backup to your own cloud storage, your company logo on images, data table export and layers. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. You can manage or cancel them in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.iubenda.com/privacy-policy/43586350
Screenshots
Verdict
The clearest difference is update cadence: ImageMeter at every 2 weeks against Image Ruler's every 3 weeks. On price, ads, in-app purchases 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 and ImageMeter sells 3 in-app purchases, starting at $4.49 per month. Whichever you choose, the download price is not the number that matters.
Image Ruler ships an update every 3 weeks, ImageMeter every 2 weeks. Both last shipped on October 4, 2026.
| Parameter | Image Ruler | ImageMeter |
|---|---|---|
| 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 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 47 MB | 73 MB |
| Age rating | 4+ | 4+ |
| Developer | Martin Schurmann | Dirk Farin |
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
ImageMeter
- Business (monthly)1 Month trial$4.491 Month
- Business (yearly)1 Month trial$42.991 Year
- Pro$18.99
Questions
Is Image Ruler free?
Is ImageMeter free?
Do Image Ruler or ImageMeter have ads?
Which is updated more often, Image Ruler or ImageMeter?
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