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Common questions answered below. Can't find what you need? Email us directly.
How do I blur the faces in a video?
Open Blurfold and choose a video. Every frame is checked, each face is found and followed through the clip, and the covers appear in the preview straight away. Adjust anything you want, then tap Export to Photos.
Can I leave one person unblurred?
Yes. Tap that person’s face in the video and they stop being covered; tap again to put the cover back. The choice follows them through the whole clip, because it is attached to the person Blurfold is already tracking rather than to a box you drew.
What does the coloured bar under the video mean?
It is a map of how each moment is covered. Green means a face was actually detected there. Amber means the detector briefly lost the face and the cover was bridged across the gap — usually correct, but worth a glance. Grey means there was nothing to cover. Tap anywhere on the bar to jump to that moment.
What is the screen that appears before exporting?
It lists the moments Blurfold is least sure about: any stretch where nothing is being covered, and any guess long enough to be worth your eyes. Each one shows a thumbnail of the real output, a button to jump to it, and a one-tap fix. It exists because we would rather show you the few percent we cannot promise than quietly round up to 100%.
Can it blur licence plates?
Yes — turn on Cover text. Blurfold finds a plate by the readable text on it, so the same setting also covers name badges, addresses, documents and phone screens. It is off by default because covering every sign in a street scene makes a video hard to watch, but if readable text is found and left uncovered the review screen tells you before you export.
Something was missed. Can I cover it myself?
Add your own cover and drag it into place. By default it stays on for the whole clip; if you only need it briefly, scrub to where it should start and tap Starts here, then to where it should end and tap Ends here.
Will my video come back larger or lower quality?
Neither. Blurfold encodes at your video’s own bitrate rather than a fixed preset, so the file comes back about the size you gave it instead of several times larger. Length, resolution, frame rate and audio are all preserved, and the audio is copied rather than re-encoded.
Where does my video go?
Nowhere. Everything happens on your iPhone — no account, no upload, no server, because the app contains no networking code at all. See our Privacy Policy for details.
It struggles when people walk in front of each other.
That is the honest weak spot. Crowd scenes, where people repeatedly cross, are where face tracking is hardest and where Blurfold is least reliable. The coverage bar and the pre-export review show you exactly where — please check them before publishing anything that matters.
Still need help?
Send us an email and we'll get back to you as soon as possible.
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