Easy Subtraction vs Picpair
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Easy Subtraction
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Easily compare images. Obtain difference images in as few as two taps. Use both captured and library images. Operate offline after installation. How to Use: 1. Tap the camera button to take a mask image. 2. Tap the camera button to take a capture image. 3. Once the images are taken, the app will automatically calculate and display the difference image. 4. If the two images are misaligned, adjust the mask image by moving, rotating, and resizing it while checking the resulting difference image. The resulting difference image will highlight the differences between the two images in white (or black if the image is inverted). You can save the resulting image to your iphone library. if you want to know an answer spot-the-difference puzzles right now, be sure to try this app!
Picpair
Easily compare two photos side-by-side, vertically, with a swipe, overlay, or slider. Save and share your combined image instantly. Designed for privacy with no accounts or tracking.
- Multiple comparison layouts
- Side-by-side comparison
- Swipe and overlay views
- Adjustable transparency
- Save and share combined images
- Native iOS interface
- Light and dark mode support
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Picpair is the fastest way to compare two photos. Trying to choose between two nearly identical shots? Comparing a before and after? Lining up two options for a friend to vote on? Picpair makes it effortless. Add two photos, compare them in the layout that works for you, and save the combined result as a single image you can share anywhere. COMPARE YOUR WAY Switch instantly between five layouts to see your photos exactly how you want: - Side by Side: both photos next to each other for a direct, edge-to-edge comparison. - Vertical: one photo stacked above the other, great for tall shots and phone screens. - Swipe: full-screen photos you can swipe between to spot the tiny differences. - Overlay: both photos visible at once with adjustable transparency. - Slider: reveal the bottom photo by dragging a slider across the screen. ADD PHOTOS IN SECONDS Send two photos straight from the Photos app using the share sheet, or add them right inside Picpair with the built-in picker. SAVE AND SHARE Save the combined image to your photo library with a single tap and share it anywhere. DESIGNED FOR iOS Picpair was designed with a clean, native interface and features beautiful light and dark mode support. PRIVATE BY DESIGN No accounts. No sign-ups. No tracking. Free. Your photos stay on your device and are never uploaded anywhere.
Screenshots
Verdict
The clearest difference is iOS requirement: Easy Subtraction at 16.4 against Picpair's 18.0. 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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Easy Subtraction | Picpair |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | — | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.4 — better | 18.0 |
| Further details — not scored | ||
| Size | 1 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Hideo Nose | William Krakow |
In-app purchases
Easy Subtraction
No in-app purchases
Picpair
No in-app purchases









