Image Compare.
Image Compare. Summary
Image Compare. is a free, ad-supported iOS app in Photo And Video by Reiji Kobayashi. Released in Dec 2020 (5 years ago). It has 39 ratings with a 4.36★ (good) average. Based on AppGoblin estimates, it reaches roughly 28 monthly active users and generates around $<10K monthly revenue (0% IAP / 100% ads). Store last updated May 2, 2026
Image Compare. SDKs Summary
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4.36★
Ratings: 39
Screenshots
App Description
Compare two photos, instantly.
From photo edits and DIY projects to plant growth records — see exactly what changed, in four powerful modes.
# Four Comparison Modes
▼ Side by Side
View both images at once.
Perfect for 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.
# Features
・Pinch to zoom in Slide, 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.
# Privacy First
・Works completely offline. Your images never leave your device.
・Photo library access is only used when selecting images to compare.