TwinViewer vs Images Comparison
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TwinViewer
View and compare two photo albums side-by-side. This app allows you to pick the best shots, delete unwanted ones, create combined images, and access detailed EXIF data. It offers intuitive gestures for navigation and zooming.
- Dual-screen photo viewing
- Side-by-side photo comparison
- Create combined images
- View EXIF data
- Zoom and swipe navigation
- Sync/Async viewer modes
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TwinViewer is a dual-screen photo viewer application. You can view two different albums simultaneously, compare two photos side by side, pick a better shot, or leave one and delete another. This is more than just a viewer. You can also create side-by-side combined images, get the detailed EXIF data, etc. ----- HOW TO USE ----- - Swipe left/right to browse next/previous photo. - Pinch open/close with two fingers to zoom in/out. - Double tap either one to display in full-screen mode. - Sync/Async button to switch the sync mode between two viewers. - Swap button to switch two viewers. - Grid Lines button to show/hide grid liens. - EXIF Data button to show/hide data such as image size or shooting date. - Snapshot button to created and share side-by-side images. * Please note that this application can be downloaded for free, but in-app purchase is required to use all functions.
Images Comparison
Easily compare two images side-by-side. This app allows you to slide between images to highlight differences or similarities. Perfect for visual analysis and detailed review.
- Side-by-side image comparison
- Sliding width adjustment
- Highlighting visual differences
- Detailed image review
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Compares two images by sliding the width of the images.
Screenshots
Verdict
The clearest difference is rating: Images Comparison at 4.9 against TwinViewer's 4.0. Images Comparison also leads on review sentiment (100% vs 64%) and monetization model (free vs free with in-app purchases). TwinViewer's advantage is iOS requirement (16.0 vs 18.0). On price, ratings volume, update cadence and ads 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. TwinViewer sells 1 one-off in-app purchase and Images Comparison sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Images Comparison holds the better App Store score, 4.9 against 4.0. Both are backed by a comparable volume of ratings — 24 and 14 respectively. Written reviews point the same way: 64% of TwinViewer's written reviews are positive against 100% of Images Comparison's.
TwinViewer ships an update every 5 weeks, Images Comparison every 2 months. The most recent releases landed on September 17, 2026 and September 8, 2026 respectively.
| Parameter | TwinViewer | Images Comparison |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (24 ratings) | 4.9 (14 ratings) — better |
| Positive reviews | 64.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 24 — better | 14 |
| Update frequency | Every 5 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 1 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Masako Sakanashi | Jumpei Adachi |
Customer experience
TwinViewer
Images Comparison
In-app purchases
TwinViewer
- Full Version$4.99
Images Comparison
- 寄付A$0.99
- 寄付B$2.99
- Paid Version$2.99
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- 寄付C$5.99
Questions
Is TwinViewer free?
Is Images Comparison free?
Which has better reviews, TwinViewer or Images Comparison?
Do TwinViewer or Images Comparison have ads?
Which is updated more often, TwinViewer or Images Comparison?
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