Easily add animated, word-by-word captions and AI-generated narration to your videos. This app processes everything on your device, ensuring privacy and offline functionality. Edit clips, add music, and export in professional formats without recurring fees.
2.1.11
September 12, 2026
Reliability update. - Fixed a crash that could hit the Russian narrator on the very first Russian word after an interrupted voice download. - A script containing an emoji, or a line in another alphabet, no longer switches the narrator off. - The export screen no longer presents a video rendered before your latest edit as the finished result. - Removing a voiceover now removes the captions generated from it as well. - Cancelling an export or a transcription now stops it right away. - Fixed a transcript that could be cut short after a music or sound annotation.
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Subly Pro
Remove the watermark, export unlimited.
No, Subly does not contain advertisements. The app is free to download and use, with a one-time purchase to unlock full features and remove watermarks.
Subly is free to download. A one-time purchase is available to remove watermarks and unlock unlimited, full-quality export. There are no monthly fees or subscription costs.
Subly is currently supported on iPhone devices. It is designed to work offline, even in airplane mode.
The latest version of Subly is 2.1.3, and it was last updated on June 27, 2026. Updates are released by the developer, Nikolai Tsyrenov.
Subly processes all video and audio on your device, meaning your footage never leaves your iPhone. It does not require an account or use cloud servers, ensuring maximum privacy.
Yes, Subly is built for on-device processing, allowing you to caption, edit, and narrate videos even when you don't have an internet connection, including in airplane mode.
Subly uses on-device Whisper transcription, which is English-first but supports over 90 languages for generating captions and AI narration.
Subly allows you to export your videos with professional subtitle files, including SRT and VTT formats, in addition to the video itself.
