Guide
How to add captions to a product demo video on iPhone
Updated
To add captions to a product demo or small-business promo video on iPhone, open the clip in CaptionAddr, let it transcribe your English speech on the iPhone, correct your brand and product names in Edit Captions, choose a font, drag the captions clear of the product and export a captioned copy to Photos with no required watermark. Videos up to 2 minutes are free; CaptionAddr Pro covers up to 30 minutes.
Why caption a product video
Many people watch product and promo videos in a feed with the sound off. Captions make sure they still see what the product does and what you want them to do next. They also help viewers who are deaf or hard of hearing.
CaptionAddr burns the captions into the picture, so one exported copy works on your website, in social posts and in messages to customers.
Caption a product demo on iPhone
- Record the demo with speech. Explain what the product does as you show it. CaptionAddr captions spoken English, so a music-only promo has nothing to caption.
- Choose the video. Tap Select Video in CaptionAddr and pick the clip with Apple’s Photos picker. Vertical, square and landscape videos all work.
- Let the captions generate. Captions start as soon as the video opens; keep the app open; your English speech is transcribed on your iPhone, not on a server.
- Fix names and terms. In Edit Captions, correct your business name, product names, model numbers and any offer you mention. You can edit, delete and reorder words, with undo and redo.
- Style and place the captions. Pick the one of the 20 fonts that best suits your brand and a size that reads on a phone, turn on the tinted background over bright or busy shots, and drag the captions where they don’t cover the product.
- Export and share. Tap Export Video to save the captioned copy to Photos. The watermark is off unless you turn it on, so the copy carries only your own branding. Share it to your website, social accounts or customers.
Tips for product video captions
- Say the product name clearly. Unusual brand names are the words most likely to need correcting, so check each one in Edit Captions.
- Keep music quiet. Music under your voice can cause missed words; keep it low.
- Avoid text already in the video. Drag the captions away from labels, packaging text and any titles you added in another app.
- Make one version per shape. CaptionAddr doesn’t crop, so prepare a vertical and a landscape version first if you need both, then caption each.
- Keep your original. CaptionAddr exports a new copy and leaves the original in your library.
Limits
- English only. CaptionAddr transcribes English speech and doesn’t translate.
- Captions only. CaptionAddr adds captions of the spoken words. It doesn’t trim, crop, or add titles, logos or music.
- Style controls. You choose the font, size, tinted background and position. Captions are always white uppercase text with a dark outline; there are no brand-color controls.
- Length. Free covers videos up to 2 minutes; CaptionAddr Pro covers up to 30 minutes. The App Store shows the current Pro price in your currency.
- Burned-in captions only. There is no SRT, VTT or text export, and the app doesn’t post to social platforms or online stores.
Frequently asked questions
How do I add captions to a product demo video on iPhone?
Open the clip in CaptionAddr, generate captions on your iPhone, correct brand and product names in Edit Captions, choose a font and size, drag the captions into place and export a captioned copy to Photos.
Will there be a CaptionAddr watermark on my promo video?
No watermark is required. A small CaptionAddr watermark is optional and off unless you turn it on.
Can I use my brand colors for the captions?
No. Captions are always white uppercase text with a dark outline. You can choose from 20 fonts, change the size, add a tinted background and drag the captions into place.
Does it caption a promo that has background music?
It captions the English speech. Loud music under the voice can cause missed words, and a promo with music only has no speech to caption.
Is my unreleased product video uploaded?
No. Transcription runs on the device, and CaptionAddr doesn’t send your video, audio or captions to its servers for transcription.