TwinViewer vs AlphaFTP

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.

AlphaFTP is a simple FTP server for photographers who want Sony Alpha cameras to transfer photos directly to an iPhone, iPad, or Mac. Start the app, enter the username and password you want your camera to use, choose where uploads should go, and AlphaFTP listens on your local network. The app shows the Ethernet and Wi-Fi addresses your camera can connect to, along with the FTP port. AlphaFTP can save received photos to a folder, import them into your Photos library, and display photos full-screen as you take them! AlphaFTP is ideal for: - Casual shooters who want to quickly transfer photos to their iOS, iPadOS, or MacOS device wirelessly - Event photographers who want their photos backed up - as they take them - Portrait photographers who want clients to be able to review the photos as they are taken without being tethered to a cable. Features: - Direct Sony Alpha camera-to-iOS FTP transfers - Save photos to a folder - Import uploads into the iOS Photos library - Recent photo thumbnails on the main screen - Live connection and upload activity - View photos full-screen with EXIF data as they are received - RAW, JPEG, and HEIF session counts - Built-in Sony camera setup guide - Optional sounds for camera connection and photo receipt - No accounts, analytics, tracking, or external servers AlphaFTP uses standard FTP and is intended for trusted local networks. Camera transfers happen directly between your camera and your iPhone, iPad, or Mac. Supported cameras: - Sony α1 II (ILCE-1M2) - Sony α1 (ILCE-1) - Sony α9 III (ILCE-9M3) - Sony α9 II (ILCE-9M2) - Sony α9 (ILCE-9) - Requires camera firmware version 5.00 or later. - Sony α7R VI (ILCE-7RM6) - Sony α7R V (ILCE-7RM5) - Sony α7R IV A (ILCE-7RM4A) - Sony α7R IV (ILCE-7RM4) - Sony α7R III A (ILCE-7RM3A) - Sony α7R III (ILCE-7RM3) - Sony α7S III (ILCE-7SM3) - Sony α7 V (ILCE-7M5) - Sony α7 IV (ILCE-7M4) - Sony α7 III (ILCE-7M3) - Sony α7CR (ILCE-7CR) - Sony α7C II (ILCE-7CM2) - Sony α7C (ILCE-7C)