D2 Player - Video & Music

A player for your own videos and music, with subtitles and a transcript. Tap a line in the transcript to jump to that scene, translate subtitles on your device, and on a foldable iPhone keep the video on top and the transcript below. D2 stands for Double Display.

FEATURES
• Plays your own videos and music (MP4, MOV, M4V, MP3, M4A, AAC, FLAC, WAV, and more)
• Subtitle files (SRT, SMI, VTT, ASS) and subtitles built into the video. Korean SMI encodings are detected automatically, and a subtitle file with the same name as the video is attached when you open it
• Subtitle timing adjustment in 0.1-second steps
• A transcript panel: tap a line to jump to that scene
• On-device subtitle translation with Apple Translation
• On a foldable iPhone, two screens: the video on top, the transcript below. On iPhone and iPad, the transcript button opens the same view
• Continue Watching, bookmarks, a sleep timer, and Listen Only
• Picture in Picture and AirPlay
• Import from Photos, the Files app, or another app's share sheet, and connect a Files folder

D2 PLAYER PRO (ONE-TIME PURCHASE, NOT A SUBSCRIPTION)
• No Ads
• NAS: connect over SMB or WebDAV and play videos and music on your NAS right away
• Repeat and Save Sentences
• Touch Lock and Large Controls

PRIVACY
No login. Start right away. Your videos, playback positions, bookmarks, and saved lines stay on your device and are never sent to our servers. The free version shows ads; buying Pro removes them.

SUPPORT
iPhone and iPad, iOS 26 or later. Korean, English, and Japanese.
Contact: ssn.dev.app.studio@gmail.com