TwinViewer vs Kirinuki
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.
Kirinuki
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スクショの黒帯、毎回手で消していませんか? Kirinukiは、メルカリやヤフオクの商品写真をスクショしたときに付く上下の黒帯(ステータスバー・タイトル・ページ送り)を自動で検出し、中央の商品部分だけをきれいに切り抜くアプリです。 ■ こんな方に ・フリマアプリの写真を再利用して出品する方 ・スクショの余白を毎回トリミングするのが面倒な方 ■ 特長 ・黒帯をワンタップで自動カット。黒い服や家電など暗い商品もきれいに判定 ・切り抜き方を数パターンから選べる ・複数選択でまとめて処理(Pro) ・アプリ内ライブラリで整理してからアルバムに書き出し ・書き出し後に元の写真を削除するオプション ・すべて端末内で処理。写真を外部に送信せず、データも一切収集しません 切り抜きはオンデバイスで完結。プライバシーも安心です。
Screenshots
Verdict
TwinViewer and Kirinuki are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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 Kirinuki sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | TwinViewer | Kirinuki |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (24 ratings) — better | — |
| Positive reviews | 64.0% of reviews | — |
| Number of ratings | 24 — better | — |
| Update frequency | Every 5 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 1 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Masako Sakanashi | QIAN WANPENG |
In-app purchases
TwinViewer
- Full Version$4.99
Kirinuki
- Pro (one-time)$4.99









