Reason I bought new iPad
Tried many iOS apps and Windows apps on a Surface pro. This single app is the reason I bought my new iPad. Nothing came close to the ease of use, speed, features, intuitive UI, support, etc.
Had over 10,000 photos I needed to cull quickly and this app fit the task perfectly. 1 very cool feature is the ability to flash full screen images back-and-forth to compare very minor detail. I had 1,000’s of whale photos with very minor differences in details and focus which made this feature alone well worth the price.
Had over 10,000 photos I needed to cull quickly and this app fit the task perfectly. 1 very cool feature is the ability to flash full screen images back-and-forth to compare very minor detail. I had 1,000’s of whale photos with very minor differences in details and focus which made this feature alone well worth the price.
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アップデーしてダメになった
今回のアップデートで使いずらくなり 前のバージョンに戻して欲しい
Can’t view any images…single or twin
The app is saying there are no images to view
探してたアプリ
理想のアプリです。
操作性も良く、直感で操作できました。
操作性も良く、直感で操作できました。
アップデート
アップデートしてから全然動かなくなり使えないです
さらにアップデートしてもらいまた使いやすくなりました。
ありがとうございます。
さらにアップデートしてもらいまた使いやすくなりました。
ありがとうございます。
Response from developer
この度のアップデートでご不便をおかけし申し訳ありません。膨大な数の画像をお持ちの場合、アルバムリストの取得に時間がかかることがございます。最新版(ver.12.1)ではアプリ内設定の「フォトライブラリのスキャン」を「簡易スキャン」に設定されますとすばやくロードされるようになります。お試しいただければ幸いです。
BEST APP for side by side comparison photos
I’ve tried so many apps for side by side before and after photo comparisons and this is definitely the best and easiest to use. Development team is also SUPER responsive!
Response from developer
Thank you for your feedback. In the latest version, the Photo Library Scan setting (Quick Scan) is enabled again. Please use the ver12.1 or later.
Having problems
App worked great for years but within the last few months I’ve been getting a “photos aren’t available locally” error every other time I try to open an image. I checked my Privacy settings as was suggested in a previous reply and Twinviewer was already set to All Photos. Reinstalling didn’t help, only temporary fix I’ve found is that sometimes resetting the devices works.
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great app no subscription fee
This is a perfect app to combine multiple photos for a side-by-side comparison etc. The best part is I don’t have to pay a weekly or monthly subscription for something that I only use like once or twice a year which is why I never had kept an app to do this before, past the trial period.
I didn’t know this until after I bought this app but there’s also a different version which is more expensive and does quad photo comparisons. Had I known before,I might’ve purchased that one instead just to give me a more options for the future.
I didn’t know this until after I bought this app but there’s also a different version which is more expensive and does quad photo comparisons. Had I known before,I might’ve purchased that one instead just to give me a more options for the future.
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Need more instructions. I purchased it and nothing happens
Used this app once and it worked once. Today nothing would work, so I upgraded and still nothing happens. No choices to choose from. Cannot open my photos to choose anything. Think there might be special instruction somewhere, but where? What is wrong? Would like it to work. Tell me what needs to be done to make it work? If it is broken then please refund my my money. Thank you
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Best Before and After app
I am a aesthetician and I use this app for my Before and After pictures!
Still using it today
It pairs nicely with Procreate when referencing images.
重宝してる
レンズの比較に重宝しています。一方の写真を拡大するともう一方も同じく拡大される。
Excellent
I’ve been using the full version now for a few years and have found it excellent especially for comparing visual and / or metadata details on almost identical images, prior to Twin Viewer I tried several other similar apps but for me this one was the best, I haven’t felt the need to look any further.
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The perfect app that connects no data about you!
I am going to buy this, not because I need the extra features but it’s everything indeed and the dev actually doesn’t collect your life story (ie personal data)
Response from developer
Thank you so much for giving me a 5-star review!
An excellent tool
This is an excellent app. Allows me to compare and zoom two photos - and the zoom can be locked or unlocked to zoom together or an individual image. Make sure you allow access to all your photos at the start. Easy to use, a great find! It is easy to select which photos you want and you have access to choose photos from your Recents or any other album on your phone. Love it, thank you!
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レンズの比較に便利
レンズのテストは絞りを変えて同じ風景を撮影するのですが、拡大してスクロールすると2つの画像が連動して動くので画質の比較に便利です。
Great Viewer
I was looking for an app to open my video game app to play on my card board viewer. *box app allows viewing on my iOS devices now, but no way to split . I tested this app with a screen shot and applied it to both screens , placing my phone in my VR device and it worked perfectly once my eyes adjusted. This is the closest thing I found. If I could open the app instead of a photo and mirror the other side it would allow me to view whatever I want on a portable viewing system anywhere anytime, sitting laying or standing. Without spending $600 on a proprietary VR and AR devices. If the developers can make that I would purchase it. This app does what it says , but can be so much more. Thanks.
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シンプルでいい
顔だけを認識してアップに出来ると文句なしです。
（顔のビフォーアフターをアップで出したい）
ビフォーアフター撮影時に写真の大きさに誤差があっても、顔のアップでビフォーアフターの大きさを揃えて貰えると非常に助かります。
課金してでも欲しい機能です。ご検討お願いします！
（顔のビフォーアフターをアップで出したい）
ビフォーアフター撮影時に写真の大きさに誤差があっても、顔のアップでビフォーアフターの大きさを揃えて貰えると非常に助かります。
課金してでも欲しい機能です。ご検討お願いします！
アルバムが読み込めなくなりました
突如、アルバムを読み込めなくなりました。
iPad Pro11、OS最新です。
再起動、再ダウンロードしても復帰しません。
とても便利に使わせてもらっているので困りました。
iPad Pro11、OS最新です。
再起動、再ダウンロードしても復帰しません。
とても便利に使わせてもらっているので困りました。
Response from developer
写真を取り込めない現象につきましては、アプリに対するプライバシー設定がオフになっている可能性があります。設定アプリを開き、プライバシー > 写真 > TwinViewer > "すべての写真" が選択されているかご確認ください。 上記にて解決しない場合は、sakanapps@gmail.com まで詳細をお知らせいただけると助かります。よろしくお願いいたします。
Minor issues
Would be great if Recently Deleted were an available folder on the menu, seeing as more and more apps have managed to implement this option.
Otherwise, best tool for comparing images that I've used; more convenient and quicker than using the layer method in the typical photo editor.
Update: the below is now fixed, thanks!
I noticed (I believe within the last few versions) that the iOS status bar at the top (containing network info, time, battery and other indicators) no longer disappears when attempting to view an image full-screen in the app. This makes image comparisons more difficult or less convenient in some situations (e.g. screenshots taken in the app of zoomed-in portions of an image pair). It would be appreciated if this issue could be fixed by either hiding the status bar and ensuring the image is truly full-screen, or at least giving the option to completely hide it.
Otherwise, best tool for comparing images that I've used; more convenient and quicker than using the layer method in the typical photo editor.
Update: the below is now fixed, thanks!
I noticed (I believe within the last few versions) that the iOS status bar at the top (containing network info, time, battery and other indicators) no longer disappears when attempting to view an image full-screen in the app. This makes image comparisons more difficult or less convenient in some situations (e.g. screenshots taken in the app of zoomed-in portions of an image pair). It would be appreciated if this issue could be fixed by either hiding the status bar and ensuring the image is truly full-screen, or at least giving the option to completely hide it.
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Response from developer
Thank you for your encouraging comments and I'm sorry I could not meet all your requests.
