Sub Storm
Master, align and review subtitles in any language, as a team. A professional subtitle studio for Mac.
Perpetual licence, no subscription. Coming soon.
Edit two languages at once, in your own
The signature of Sub Storm. Work on two subtitle tracks side by side, say Chinese and English, with both shown live in the operator's own language, so a reviewer can move confidently across scripts they do not read. Line cues up by hand on the waveform, snap to the dialogue and the cut, or let the AI align two language tracks to each other and flag the matches worth a second look.
Subtitles from scratch, on device
Drop in a video or audio file and Sub Storm transcribes the dialogue into a timed track using on-device Whisper. Private and offline, with nothing uploaded and nothing to install. Refine the timings in the waveform editor, then run the result through Netflix-aware quality checking before it goes out.
Team sign-off, built in
Send a supervisor a clean report they open in any browser. They mark up each cue, approve or reject changes, add notes and preferred wording, then send the whole thing straight back to you. No accounts, no uploads, no chasing versions through email.
Also in the box
- Meaning-aware AI translation with quality scoring
- Netflix-aware quality checking
- Delivery to both streaming and cinema DCP
- Reads and writes TTML, DFXP, XML and SRT
- Native Apple Silicon Mac app, so your footage never leaves your machine
Own it. No subscription.
Professional subtitle authoring for macOS. One perpetual licence — buy once, keep it, no recurring fees to keep working. Updates & support are included for the first year, then an optional service subscription keeps them coming.
SubtitlesComing soon
Sub Storm
Professional subtitle authoring for macOS — create, conform and QC subtitles for cinema and streaming, and package them straight into a DCP. Its own licence, with its own service subscription.
Service & updates · Sub Storm
Sub Storm is a perpetual licence and includes the first year of updates & support. After that, an optional service subscription keeps you on the latest builds — an annual, 12-month term with no monthly billing. Pricing to be announced. Let it lapse and the app keeps working exactly as it is; you just stop receiving new updates until you renew.