Image Compare. vs CameraOverlay
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Image Compare.
Easily compare two images using various modes like side-by-side, slider, opacity, or difference. Zoom in for detailed inspection and export comparison results.
- Concurrent side-by-side comparison
- Slider comparison
- Opacity comparison
- Difference comparison
- Zoom for detail
- Export difference images
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Compare two photos, instantly. Image Compare is an iOS app that puts two images side by side, under a slider, as an overlay, or as a pixel difference, so you can see exactly what changed. From photo edits and DIY projects to plant growth records and screenshot checks, spot the difference in seconds. # Four Comparison Modes ▼ Side by Side View both images at once. Perfect for before/after and progress photos. ▼ Slider Drag a slider across one image to reveal the other underneath. Smoothly check before/after photo edits. ▼ Opacity Overlay two images and adjust transparency. Great for spotting alignment shifts and subtle changes. ▼ Difference Subtract one image from the other to highlight only what's changed. Reveals details invisible to the naked eye. * You can save the difference image to your Photos. # Position Adjustment — Line Up Your Images When two photos were not taken from exactly the same spot, use Position Adjustment mode to align them before comparing. ・Drag to move one image over the other. ・Pinch to scale it. ・NEW: Rotate with two fingers to fix a tilted shot. Once aligned, the slider, opacity, and difference views show real changes instead of camera offset. # Features ・Pinch to zoom in Slider, Opacity, and Difference modes for detailed inspection. ・Two processing options for Difference mode: - Express: Resizes to screen width before processing (fast). - Original: Processes at full resolution (high accuracy, takes longer. Both images must be the same size). ・Export the difference image to Photos or share it directly. # Common Uses ・How to compare two photos on iPhone: pick two images from your library and switch between modes. ・Check a before/after photo edit or retouch. ・Find the difference between two screenshots or design mockups. ・Track progress: DIY, renovation, fitness, plants, cleaning, and more. ・Verify that two images are identical or detect subtle changes. # Privacy First ・Works completely offline. Your images never leave your device. ・Photo library access is only used when selecting images to compare.
CameraOverlay
Easily align and compare images by overlaying them. Perfect for creating before-and-after visuals, aiding in photography, design projects, and tracking progress over time.
- Image overlay for alignment
- Before/after comparisons
- Photography assistance
- Design aid
- Progress tracking
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CameraOverlay lets you overlay images to align shots perfectly. Ideal for before/after comparisons, photography, design, and progress tracking.
Screenshots
Verdict
The clearest difference is ads: CameraOverlay at none against Image Compare.'s shown. CameraOverlay also leads on rating (4.6 vs 4.2) and update cadence (every 2 days vs every 3 months). Image Compare.'s advantage is ratings volume (39 vs 5) and device support (3 vs 1). On price 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. Neither carries in-app purchases, so what you see is what you pay.
CameraOverlay holds the better App Store score, 4.6 against 4.2. That said, the two scores are not equally well evidenced: Image Compare. has 39 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 90% of Image Compare.'s written reviews are positive against 100% of CameraOverlay's.
Image Compare. ships an update every 3 months, CameraOverlay every 2 days. Both last shipped on October 24, 2026.
| Parameter | Image Compare. | CameraOverlay |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (39 ratings) | 4.6 (5 ratings) — better |
| Positive reviews | 90.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 39 — better | 5 |
| Update frequency | Every 3 months | Every 2 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 12 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Reiji Kobayashi | Adne Nystuen |
Customer experience
Image Compare.
CameraOverlay
In-app purchases
Image Compare.
No in-app purchases
CameraOverlay
No in-app purchases
Questions
Is Image Compare. free?
Is CameraOverlay free?
Which has better reviews, Image Compare. or CameraOverlay?
Do Image Compare. or CameraOverlay have ads?
Which is updated more often, Image Compare. or CameraOverlay?
Other comparisons
