Image Ruler vs Skipper
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.
Skipper
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Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula Learn Smarter, Not Harder — Powered by AI Whether you're studying languages, prepping for exams, or just curious, our AI-powered flashcard app helps you retain information faster and more effectively. 1. AI-Generated Flashcards with guidance on how to locate these features in Skipper: a. Document/Image Analysis: - Open any deck in the app - Tap the sparkles icon in the top-right toolbar - This opens "Add with Skipper" - our AI document analyzer - Upload a PDF document or image - The AI will analyze the content and generate flashcards automatically - Users can review and accept/decline each suggested flashcard b. Individual Word Enhancement: When adding or editing a flashcard, tap the sparkles icon in the toolbar after enter your word and the AI will generate definition, pronunciation, examples, notes, and hints accordingly This works in both "Add Card" and "Edit Card" views c. Content Generation: - In the deck list, long-press any deck and select "Let's Generate!", alternatively tap the sparkles icon to show the instruction for this feature - AI generates stories and news summaries using your flashcard vocabulary The AI features are prominently displayed throughout the app with the universal sparkles icon, making them easily discoverable for users. 2. Spaced Repetition Review Improve long-term retention with proven spaced repetition techniques. We'll handle the timing, so you can focus on what matters. 3. Track Your Progress Stay motivated with real-time stats on what you've learned, your strengths, and where to focus next. 4. Daily Learning Goals Build a consistent habit with gentle reminders and goal streaks tailored to your pace. 5. Offline Mode Keep learning anytime, anywhere — even without internet access.
Screenshots
Verdict
The clearest difference is ads: Skipper at none against Image Ruler's shown. Image Ruler's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.4). On price, update cadence and in-app purchases 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 Skipper sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Image Ruler ships an update every 3 weeks, Skipper monthly. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.
| Parameter | Image Ruler | Skipper |
|---|---|---|
| Price | Free | Free |
| Rating | 1.6 (45 ratings) — better | — |
| Positive reviews | 17.6% of reviews | — |
| Number of ratings | 45 — better | — |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 17.4 |
| Further details — not scored | ||
| Size | 47 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Martin Schurmann | Nguyen Cuong |
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
Skipper
- Skipper Plus$1.991 Month









