Hare Dialer vs Image Ruler
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hare Dialer
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1. Quickly search the first letter, such as Liu Bei: LB, if there are many results, you can continue to enter: LBEI 2. Add notes to contacts and display them easily. 3. Set the default dial number 4. Custom Color
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 price: Image Ruler at Free against Hare Dialer's $2.99. Image Ruler also leads on update cadence (every 3 weeks vs every 2 months). Hare Dialer's advantage is in-app purchases (none vs 7). On 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
Image Ruler is free to download; Hare Dialer costs $2.99 up front. Image Ruler sells 5 one-off in-app purchases. Hare Dialer asks for nothing beyond the download.
Hare Dialer ships an update every 2 months, Image Ruler every 3 weeks. The most recent releases landed on September 10, 2026 and August 6, 2026 respectively.
| Parameter | Hare Dialer | Image Ruler |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | — | 1.5 (44 ratings) — better |
| Positive reviews | — | 17.6% of reviews |
| Number of ratings | — | 44 — better |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 3 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | 恩涛 杨 | Martin Schurmann |
In-app purchases
Hare Dialer
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









