CaptionAddrGet the app

CaptionAddr for iPhone & iPad

Your words.
On your video.

Turn English speech into word-by-word captions, right on your iPhone or iPad. Choose a video, refine the words, and make it yours.

Download on the App Store See how it works

On-device transcription of English speech. No required watermark.

The CaptionAddr studio on iPhone: a mountain video with the word WORTH captioned in bold white letters, a timeline, and caption font choices below.
The studio: preview, timeline and caption style on one screen.
Caption fonts20with adjustable size and placement
Free2 minper video, no required watermark
Pro30 minper video with CaptionAddr Pro

How it works

Choose. Caption. Share.

One video. A simple workflow.

  1. Choose your video

    Use Apple’s Photos picker to select one clip. Your original stays in your library; CaptionAddr works with a local copy.

  2. Make the words yours

    Generate single-word captions locally. Review the transcript, edit or delete words, reorder them, and choose your style.

  3. Save the finished video

    Export a movie with captions built into the picture. Save it to Photos, then use Share Video to send it wherever you choose.

CaptionAddr creating captions on iPhone, with a progress ring at 61.4 percent and the label Transcribing.

Local where it matters

Made on your iPhone.

The English speech model is included in the app. CaptionAddr doesn’t send your video, audio or captions to our servers for transcription.

The app uses online services for purchases, diagnostics, security and aggregate workflow counts. Videos stored in iCloud may also need internet access to open. Saving or sharing uses the services you choose.

Understand your privacy
Editing captions in CaptionAddr: the word espresso is selected in a row of word chips beneath the video preview.

Edit

Fix any word in a tap.

Every caption is one word, timed to the speech. Tap a word to correct it, delete what you don’t need, and move words into the right order, with undo and redo along the way.

Timing is generated automatically and aligned to a frame-rate grid. CaptionAddr does not currently provide individual start/end-time controls. Always review the words and their timing before sharing.

Make every word count

Caption Style

Try a few looks. The app has 20 fonts.

Style

20 fonts. Your style.

20 font choices, adjustable size and an optional tinted background, with white uppercase captions and a dark outline. Drag captions into position and check the result in the video preview.

All caption styles are available within both plans’ video-length limits. A small CaptionAddr watermark is optional.

A finished video in CaptionAddr with a Saved to Photos confirmation and a Share Video button above a captioned coastline clip.

Export

Ready to post.

Export a new movie with the captions burned into the picture and save it straight to Photos. Then share it to TikTok, Reels, Shorts or anywhere else you post.

Exports are a new copy; your original video stays as it was. No required watermark on either plan.

iPad

Room to work on iPad.

The same studio, with the video beside your caption style and word list.

CaptionAddr on iPad: the video preview on the left, Caption Style and Edit Captions panels on the right.

Plans

Start free.
Go long with Pro.

Free

A place to start

2 minutes per video

  • Local English transcription
  • Word editing and all caption styles
  • Captioned movie export and Photos saving
  • No required watermark
Get started on the App Store

CaptionAddr Pro

Pro

30 minutes per video

  • Everything in Free
  • A longer video limit
  • Monthly or annual subscription through Apple, with a free trial for eligible new subscribers

The app and Apple’s purchase sheet show the current price in your currency, billing period and any eligible introductory offer before you buy.

About subscriptions

Pro renews automatically unless canceled. If you accept a free or discounted trial, cancel at least 24 hours before it ends to avoid renewal. Deleting the app does not cancel a subscription. Manage your subscription with Apple.

Before you begin

Good to know.

Visit support
Will CaptionAddr work on my device?

You need iOS or iPadOS 17.0 or later and A12-class or newer Apple silicon. Examples include iPhone XS/XR or later, iPhone SE (2nd generation) or later, iPad (8th generation) or later, iPad mini (5th generation) or later, iPad Air (3rd generation) or later, iPad Pro 11-inch (1st generation) or later, and iPad Pro 12.9-inch (3rd generation) or later. Check the App Store’s compatibility list for your device.

Long clips need enough free storage and processing time. Older supported devices can be slower.

A Mac version for macOS 14 or later is being prepared for release. Check the App Store listing for availability before purchasing Pro for use on a Mac. Read about the Mac workflow.

Does it work offline?

Transcription runs on your device with the bundled model. Internet may be needed to download an iCloud video, buy or restore Pro, or verify subscription access. “Local transcription” does not mean every app feature is offline.

Does it support other languages or subtitle files?

The current model is designed for English speech. Other languages and translation are not supported. Exports have captions burned into the video; there is no standalone SRT or VTT export.

What does the exported video look like?

A new movie with the captions burned into the picture, in the same shape as your video, at up to 4K and up to 60 frames per second. Videos smaller than 1080p are scaled up to 1080p.

Exports are standard dynamic range. An HDR or Dolby Vision original will look brighter and more vivid than its captioned copy on an HDR screen.

Are captions always accurate?

No speech model is perfect. Noise, overlapping voices, accents and silence can cause errors or missing words. Review the entire video before exporting. Output timing, resolution and color can differ from the source; export is not a lossless copy or a guarantee of accessibility compliance.

Guides

Captioning, step by step.

Practical guides for the videos you’re making.

All caption guides

Say it. Caption it. Share it.

Your next video starts here.

Get CaptionAddr Get help