# PicDiff — Deep Insight with Overlays

> Overlay and compare two photos with pixel-level accuracy. (iPhone/iPad app by Aceca Corp..)

- Source: https://appshunter.io/ios/app/picdiff/id1266238855 (this page in markdown: same URL + `.md`)
- Developer: [Aceca Corp.](https://appshunter.io/developer/983165401)
- Category: Utilities, Photo & Video
- Price: Free with in-app purchases
- Rating: 4.50/5 from 2 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 23 MB
- Languages: Korean, German (Germany), Russian, European Spanish, American English, Italian, Japanese, Chinese (Simplified, China), Chinese (Traditional, Taiwan), French (France)
- Released: 2017-09-04
- Data updated: 2026-08-26
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/picdiff/id1266238855/reviews.md

## What is PicDiff?

Introducing PicDiff: Your Go-To iOS App for In-depth Photo Comparisons!

With PicDiff, delve deep into the essence of your images by overlaying two photos for a thorough comparison. Whether you're a professional photographer, a designer looking for subtle variations, or just curious about the changes between two moments captured, PicDiff is designed just for you.

Key Features:
- Overlay Comparisons: Effortlessly layer two images for an in-depth juxtaposition.
- Pixel-level Precision: Analyze differences with unmatched accuracy down to the pixel.
- User-friendly Experience: Navigating and comparing has never been more straightforward with our intuitive design.

Dive into the world of detailed photo analysis. Experience the unmatched capability of PicDiff now!

[Privacy Policy]
https://aceca.co.jp/privacy/privacy-photocomp.html

[Terms of Use]
https://aceca.co.jp/terms/terms-photocomp.html

This application includes Apache License, Version 2.0 work.

Icons by Icons8
https://icons8.com/

Note : Please use this application at your own risk. We can not be held liable or responsible for any damages caused by using this application.

## Key features

- Overlay comparisons
- Pixel-level precision
- User-friendly interface
- In-depth photo analysis
- Subtle variation detection

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Upgrade | $17.99 | one-time |


## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/picdiff/id1266238855/reviews.md

### 4/5 — Looking for a photo compare tool. This actually has a slider/transparency compare tool!

*2024-12-30*

Looking everywhere for a photo compare app. Tried dozens. This is the only one I have found where I can overlay images, use a transparency feature then size and shape up both images for perfect overlay. Then change the transparency to see. 
So thanks guys. 
Bit buggyand would be great if could export a gif of the transparency going back and forth!

### 2/5 — Ну так себе...

*2019-10-15*

RAW не видит, без Интернета не работает, из произвольной папки фотографии не открывает.

### 4/5 — 사진 디테일 비교용

*2019-05-22*

사진을 넘겨봐서는 알 수 없는 미세한 차이를 확인하기 좋습니다.

## Frequently asked questions about PicDiff

### What is PicDiff used for?

PicDiff allows you to overlay two photos to perform in-depth comparisons. It's designed for analyzing subtle differences between images, making it useful for professionals and hobbyists.

### Does PicDiff have ads?

Yes, PicDiff contains advertisements. As it is a free application with in-app purchases, advertisements are included to support its development and maintenance.

### What devices does PicDiff support?

PicDiff is available for iPhone, iPad, and iPod. It is designed to run on Apple's mobile operating system.

### How accurate is PicDiff's comparison?

PicDiff offers pixel-level precision, allowing users to analyze differences down to the smallest detail. This ensures a thorough and accurate comparison of your images.

### Is PicDiff easy to use?

Yes, PicDiff features a user-friendly experience with an intuitive design. Navigating and comparing images is straightforward, even for those new to photo analysis tools.

### What is the age rating for PicDiff?

PicDiff has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content.

### How often is PicDiff updated?

The latest version of PicDiff is 2.4.2, last updated on September 28, 2024. This suggests regular updates to improve functionality and address any issues.

### What license does PicDiff use?

PicDiff includes Apache License, Version 2.0 work. This is a permissive open-source license that allows for broad use and distribution.

## Version history (last 5 releases)

### 2.4.2 — 2024-09-28

- Fixed an issue where banner ads were displayed after purchase.

### 2.4.1 — 2024-09-24

- Fix the issue where users are prompted to sign in.

### 2.4.0 — 2024-09-22

- Added buttons for "Move Up/Down/Left/Right" and "Rotate Left/Right" to enable image rotation and position adjustment.
Bug Fixes
- Fixed various issues.

### 2.3.1 — 2024-04-04

- Modify the Slider Bar to make it even shorter for the iPad.

### 2.3.0 — 2024-04-02

- Adjusted the slider to display shorter in landscape orientation.
- Layout adjusted to avoid overlap with the control area.
- Added a toggle menu for full screen display.

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## More apps by Aceca Corp.

- [OCR Clip Scan](https://appshunter.io/ios/app/ocr-clip-scan/id1036292088)
- [VR Photo Viewer](https://appshunter.io/ios/app/vr-photo-viewer/id1117799176)
- [VR Video Viewer - 360Player](https://appshunter.io/ios/app/vr-video-viewer-360player/id1198565088)
- [Action Sequence Shot](https://appshunter.io/ios/app/action-sequence-shot/id1223441158)
- [OCR KANJI](https://appshunter.io/ios/app/ocr-kanji/id1315414397)

All apps by Aceca Corp.: https://appshunter.io/developer/983165401

## Related topics

[picture comparison apps](https://appshunter.io/ios/topics/picture-comparison-apps)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*