3D Superimpose vs Image Compare+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
3D Superimpose
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Welcome to the AR World ! Using "3D Superimpose", you can get the AR (augmented reality) easily enough without using the marker. First, pick a photo from your gallery, and then load a 3D model data. You can superimpose the 3D model onto the photo and save the screenshot as JPEG format. Available formats are PLY, STL-binary and RTD. Remember that the PLY is limited to a format which is exported by "Sense 3D Scanner" and "Microsoft Kinect scanner". In advance, please import the 3D model data to the application folder using iTunes, Finder or Apple Configurator2. About RTD format RTD format is the original format which is composed vertices, color and normal vector. If you want to use RTD format, you need a data conversion software "TRansRTD". It can translate the Artec 3D model data (*.obj) or the Vectra-3D model data (*.obj) into RTD. Download: http://www7b.biglobe.ne.jp/~mobileapps/files/transrtd.htm (You need a Windows PC to use this software.) 【Function】 - 2D: rotation (unit of 90 degrees to clockwise or counterclockwise) reflection (horizontal) expansion / reduction, translation - 3D: expansion / reduction, translation, rotation(by XY-axes, X-axis, Y-axis, Z-axis) alpha blending perspective - save (JPEG format)
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. Optimized for quick visual analysis.
- Four comparison modes (Concurrent, Slide, Opacity, Difference)
- Image zooming for detail inspection
- Export comparison images
- Option to resize images to screen width
- Supports original image scale processing
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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.
Screenshots
Verdict
The clearest difference is price: Image Compare+ at $2.99 against 3D Superimpose's $9.99. Image Compare+ also leads on update cadence (every 3 weeks vs every 6 months). On ads, in-app purchases, 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
3D Superimpose costs $9.99 and Image Compare+ $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
3D Superimpose ships an update every 6 months, Image Compare+ every 3 weeks. The most recent releases landed on October 10, 2026 and October 15, 2026 respectively.
| Parameter | 3D Superimpose | Image Compare+ |
|---|---|---|
| Price | $9.99 | $2.99 — better |
| Rating | — | 4.2 (5 ratings) — better |
| Positive reviews | — | 33.3% of reviews |
| Number of ratings | — | 5 — better |
| Update frequency | Every 6 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 1 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Medic Engineering K.K. | Reiji Kobayashi |
In-app purchases
3D Superimpose
No in-app purchases
Image Compare+
No in-app purchases
Questions
Is 3D Superimpose free?
Is Image Compare+ free?
Do 3D Superimpose or Image Compare+ have ads?
Which is updated more often, 3D Superimpose or Image Compare+?
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