Aire Subtitle Support

iOS 26 or later on an iPhone 15 Pro or newer, or an iPad with an M1 chip or later, with Apple Intelligence switched on. Transcription runs on Apple's on-device models, which only those devices have.

Either the device can't run Apple's on-device speech models, or Apple Intelligence is turned off. To turn it on: Settings › Apple Intelligence & Siri › Apple Intelligence. iOS then downloads its models over Wi-Fi in the background, which can take a while; come back to the app once it has finished.

1. Tap Add… and choose a video or audio file from Files or Photos. You can also AirDrop a file to the app, or use Share › Aire Subtitle from Photos, Files or Safari.
2. Under Task, choose Transcribe, Translate, or Transcribe + translate.
3. Set Video language, or leave it on Auto detect.
4. Tap Generate. Keep the app open until it finishes.

No. Transcription, translation and burning in all happen on your device. There is no account and no server. See the Privacy Policy.

Whichever ones Apple's on-device speech models cover on your device – the Video language list shows exactly those. The Translate into list shows the language pairs your device can translate.

iOS downloads Apple's model for that language the first time it's used, once. After that it's on the device and runs offline.

Auto detect listens to a sample using the languages already on your device. For a language you haven't used before, choose it by name in Video language.

MP4, MOV, M4V, MP3, M4A, WAV, AAC, AIFF and CAF. MKV, AVI and WebM can't be read by iOS – convert them to MP4 first.

On the result screen, tap the export button and choose SubRip (.srt), WebVTT (.vtt) or plain text. Save it to Files, or share it anywhere the share sheet offers.

Speech recognition can mishear names, jargon and similar-sounding words. Tap Edit on the result to correct any line's text and timing, break or join lines, or add a line that was missed.

Turn on Burn subtitles into the video… under Output before tapping Generate, or open it from a finished result. You can choose the font, size, colour and position separately for the transcription and the translation.

• Excellent Quality, Smaller File Size – best for sharing and for watching on a phone.
• High Quality, Medium File Size – a good all-round choice.
• Indistinguishable Quality, Large File Size – for a big screen or further editing. Needs the most free space.

iOS doesn't let apps keep encoding video in the background. Keep Aire Subtitle on screen until it finishes. With Keep the screen awake on (the default), the phone won't lock itself partway through.

Working files – copies of recordings, extracted audio and burned videos – can be large. Open Files in the app to see what's held and clear it, or browse On My iPhone › Aire Subtitle in the Files app and delete anything you don't need.