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SubFlow AI
SubFlow AI · Shanghai, China
What it is
SubFlow AI is a workspace for transcribing, translating, editing, and exporting video subtitles. It creates a synced bilingual draft using Whisper speech recognition and contextual translation, with support for more than 99 target languages. In the bilingual editor, users can revise wording, split or merge captions, and keep translations aligned with the original timing. Subtitles can be exported as SRT or VTT, or rendered into a video; paid plans support watermark-free Full HD exports. Upload formats listed include MP4, MOV, MKV, and WebM. Free accounts include 30 processing minutes each month and allow videos up to 15 minutes; processing pauses when the allowance runs out until it resets 30 days after it began. Basic costs $2.99 a month and allows 200 minutes and 60-minute videos. Pro costs $9.99 a month and includes 1,000 minutes, 180-minute videos, and AI voiceover dubbing. Projects are private to the account, and users can delete project media and account data from the product. SubFlow AI is available on Android and web.
For and against
For
- Supports more than 99 target languages.
- Editor can split, merge, and align translated captions.
- Exports SRT or VTT, or renders subtitles into video.
- Free plan includes 30 processing minutes per month.
- Projects and account data can be deleted by users.
Against
- Free accounts are limited to 30 processing minutes monthly.
- Free accounts support videos up to 15 minutes.
- Paid plans are needed for watermark-free Full HD export.
The verdict
SubFlow AI combines transcription, translation, caption editing, and subtitle export in one workspace. Its plan limits differ by processing time and maximum video length, with paid plans starting at $2.99 a month.
Who it suits
SubFlow AI suits people creating or editing subtitles for videos, including those who need bilingual text or subtitle files. Its free plan may suit lighter workloads, while higher monthly allowances are listed for paid plans.
Plans and prices
Free
30 processing minutes/month · 15-minute videos · 99+ languages · SRT and watermarked video
Read 11 Oct 2026 · speaksubtitle.com
Basic
200 processing minutes/month · 60-minute videos · No export watermark · Full HD video export
Read 11 Oct 2026 · speaksubtitle.com
Pro
1,000 processing minutes/month · 180-minute videos · AI voiceover dubbing · Priority processing + H.265
Read 11 Oct 2026 · speaksubtitle.com
On the record
- Burn-in captions
- Yesspeaksubtitle.com · read 22 Sep 2026
- Caption styling
- Yesspeaksubtitle.com · read 22 Sep 2026
- Data retention
- Website uploads and generated subtitles are retained until project or account deletion; mobile-app audio is deleted after successful processing, or kept up to 24 hours after a failure for retry.speaksubtitle.com · read 11 Oct 2026
- Dubbing
- The Pro plan includes AI voiceover dubbing, which the pricing page says covers about 85 languages, including Persian and Arabic.speaksubtitle.com · read 11 Oct 2026
- Editing
- The bilingual editor lets users edit wording, split or merge captions, and keep translations aligned with the original timing.speaksubtitle.com · read 11 Oct 2026
- Exports
- Users can export SRT or VTT subtitles, or render subtitles into a video; paid plans support watermark-free Full HD export.speaksubtitle.com · read 11 Oct 2026
- Integrations
- Google Drive, Dropbox, TikTok, and Instagram are covered by workflow guides; users download or save a media file and upload it to SubFlow.speaksubtitle.com · read 11 Oct 2026
- Languages
- The platform supports more than 99 target languages.speaksubtitle.com · read 11 Oct 2026
- Max video length
- 60speaksubtitle.com · read 22 Sep 2026
- Media formats
- The homepage lists MP4, MOV, MKV, and WebM as upload formats.speaksubtitle.com · read 11 Oct 2026
- Mobile app
- An Android app is available on Google Play, while the web workspace is designed for detailed editing on larger screens.speaksubtitle.com · read 11 Oct 2026
- Payments
- The privacy policy says subscription billing is handled by Google Play or PayPal and SubFlow AI does not store payment card or bank details.speaksubtitle.com · read 11 Oct 2026
- Privacy
- Projects are private to the account, and users can delete project media and account data from the product at any time.speaksubtitle.com · read 11 Oct 2026
- Security
- The privacy policy says data is encrypted in transit with TLS/SSL and at rest with AES-256, and that access is restricted to authorized personnel.speaksubtitle.com · read 11 Oct 2026
- Paid from
- 2.99speaksubtitle.com · read 22 Sep 2026
- Subtitle export
- other formatsspeaksubtitle.com · read 22 Sep 2026
- Support
- The site lists [email protected] as its support contact.speaksubtitle.com · read 11 Oct 2026
- Transcription and translation
- The service uses Whisper speech recognition and contextual translation to create a synced bilingual draft.speaksubtitle.com · read 11 Oct 2026
