# SubStamp –Transcribe&Translate — Burn subtitles into any video

> Burn subtitles into any video (iPhone/iPad app by Lisen Huang.)

- Source: https://appshunter.io/ios/app/substamp-transcribe-and-translate/id6758647779 (this page in markdown: same URL + `.md`)
- Developer: [Lisen Huang](https://appshunter.io/developer/1237513723)
- Category: Photo & Video, Utilities
- Price: Free with in-app purchases
- Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.0 · 3 MB
- Languages: English, Japanese, Korean, Chinese
- Released: 2026-02-04
- Data updated: 2026-06-18
- User reviews in markdown: https://appshunter.io/ios/app/substamp-transcribe-and-translate/id6758647779/reviews.md

## What is SubStamp?

This app turns any video into a shareable version with clean, readable subtitles permanently burned in.

Select a video, choose the spoken audio language, and generate timed captions. Optionally add a second subtitle language to create bilingual subtitles, then export a new video that plays with subtitles everywhere—no special player required.

What you can do
• Speech-to-text transcription with timestamps
• AI-enhanced transcription option to improve punctuation, readability, and phrasing (when supported on your device)
• Translate subtitles to a second language when supported on your device
• Choose translation mode: Standard (faster) or AI (slower, usually more accurate and more natural)
• Burn one or two subtitle tracks directly into the video and export a new file
• Preview, edit, and fix captions before exporting
• Copy all subtitles in one tap (full transcript with timestamps) for notes, summaries, or re-use

Designed for a smooth, guided workflow
1. Choose the audio language for transcription.
2. Subtitle 1 (required) is the transcript in the audio language and is always enabled.
3. Subtitle 2 (optional) is a translated track. The app only shows translation options available for the selected audio language, and can fall back to translating via English when a direct pair isn’t available.
4. Generate subtitles, review them, and export.

Caption editing and readability
• Edit text, timing, line breaks, and segment boundaries so subtitles match your video
• Search within captions and jump to a time range to make fast fixes
• Adjust subtitle position (bottom, lower-third), safe-area margins, and font size
• Improve contrast with background box, shadow, or outline options
• Bilingual layout controls to keep two languages easy to read (stacked lines, spacing, alignment)
• Control maximum line length and wrapping behavior for cleaner captions
• Save style presets for consistent single-language or bilingual looks across projects

Export options
• Preserve the original audio
• Choose export quality and resolution where available
• Save the finished video to Photos or share it to other apps

Clear progress and reliability
Long jobs can take time depending on video length. The app shows progress for language readiness, transcription, translation (if enabled), rendering, and export, so you always know what’s happening. You may see reminders to keep the app active during export if your device requires it. For long videos, exporting while plugged in is recommended.

App language and appearance
• Switch the app’s display language: English, Chinese, Japanese, or Korean
• Choose appearance: follow system, light, or dark

Language support and availability
Speech recognition, AI features, and translation coverage vary by device and system support. Some languages or language pairs may require downloadable on-device assets. If something isn’t ready, the app will explain what’s missing and guide you to set it up before you start a long export. Translation doesn’t support every language combination, so the available Subtitle 2 choices depend on your selected audio language.

Tips for best results
• Pick the correct audio language for clearer transcription
• Use AI translation when you care about nuance; use standard translation when you want speed
• After generating captions, do a quick pass to fix names, places, and technical terms
• For bilingual subtitles, keep each line short and enable the background box for readability

Privacy
Your videos stay on your device. The app processes media locally and only requests permissions needed for features like saving to Photos. No account required.

Legal
Privacy Policy: https://lisenhuang.vercel.app/privacy-substamp.html
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Billed weekly | $1.99 | per 7 days |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime | $9.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/substamp-transcribe-and-translate/id6758647779/reviews.md

### 5/5 — Best app to add bilingual subtitles

*2026-03-03*

I just downloaded this app and it’s incredibly useful! It adds bilingual subtitles to any video quickly and accurately, and the whole process is smooth and easy. The interface is clean, processing is fast, and the results look professional. This saves me so much time compared to editing subtitles manually. Highly recommend for anyone creating multilingual content!

## Version history (last 5 releases)

### 1.8.3 — 2026-04-27

Added a contact option in Settings so you can reach support more easily.
Improved “Original Resolution & FPS” export. When exporting at original quality, SubStamp now keeps the source video’s frame rate.
Improved export wording to make the original-quality option clearer.

### 1.7.4 — 2026-03-30

Reworked Step 1 language selection to improve reliability. Audio language, Subtitle 1, and Subtitle 2 now use a more stable selection flow.
Fixed an issue where language and settings selections could open but not respond properly right away.
Improved the saved project flow. After saving a project, the Save Project button now shows a temporary saved confirmation directly on the button.
Improved project navigation so opening a saved project and going back from Preview & Export returns you to Projects more naturally.

### 1.7.2 — 2026-03-29

Improved Step 1 loading speed by caching audio and subtitle language options, so previously loaded selections appear much faster when you reopen the app or go back to setup.
Reduced the empty-state delay in subtitle language selection while the app refreshes language availability in the background.
Improved reliability of setup language loading and selection restoration.

### 1.7.1 — 2026-03-28

Improved subtitle readability by making burned-in and preview subtitles display in bold.
Improved pasted AI translation import by automatically repairing common JSON formatting issues such as smart quotes and malformed punctuation.

### 1.7.0 — 2026-03-26

Added subtitle file export in Step 3. You can now export and share subtitles in .srt format directly from Preview & Export.
Bilingual subtitle export is supported. When two subtitle tracks are enabled, both lines are included in the exported .srt.
Improved cue preview playback so switching to another cue no longer stops early because of the previous preview timing.

## More apps by Lisen Huang

- [Video Cache](https://appshunter.io/ios/app/video-cache/id1659258538)
- [生命数字](https://appshunter.io/ios/app/id6733247534)
- [StereoShift - 3D Photo/Video](https://appshunter.io/ios/app/stereoshift-3d-photovideo/id6759077023)
- [Touchdown Rush 2D](https://appshunter.io/ios/app/touchdown-rush-2d/id6760379004)
- [Bantera: Language Learning App](https://appshunter.io/ios/app/bantera-language-learning-app/id6761799720)

All apps by Lisen Huang: https://appshunter.io/developer/1237513723

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-18.*