How-to

How to Face Swap a Video on iPhone

Video face swap, start to finish, on your phone.

Video face-swap used to mean a desktop GPU and an afternoon of rendering. On a modern iPhone it's the same two-tap flow as a photo — pick a face, pick a clip, generate — the only difference is that the swap runs frame-by-frame so it takes a little longer and costs a few more credits.

The thing that makes a video swap read as real is temporal consistency: the swapped face has to sit identically across every frame so it doesn't flicker or 'breathe.' Good mobile apps handle this for you by tracking the face through the clip rather than swapping each frame blind. You don't tune anything — you just need a clip where the face stays reasonably front-facing and lit.

Clip length matters for both cost and quality. Short clips (under ~30 seconds) are the sweet spot: the face stays on-model, the credit cost stays low, and the result renders in under a minute. Long clips with lots of head-turning and cuts are where any face-swap app starts to show seams.

AnyFace charges per clip length in credits, so a 5-second reaction clip is cheap and a 30-second monologue costs more. HD is included — you're not paying extra to remove a watermark, because there isn't one.

Step by step

  1. Open AnyFace and choose Video. From the home screen, pick the video swap flow instead of photo.
  2. Pick your source face. Select a clean, front-facing selfie — this is the face that will appear in the clip.
  3. Pick the target clip. Choose a video from your camera roll or a template. Keep it under ~30s for the cleanest result.
  4. Map the face if needed. If the clip has more than one person, tap the face you want replaced.
  5. Choose quality and confirm credits. Normal or HD; the app shows the credit cost before you commit.
  6. Generate and save. Wait for the render, review it, and save or share directly to your camera roll.

Tips for a clean result

  • A clip where the subject faces the camera the whole time swaps far cleaner than one with profile turns.
  • Even, soft lighting beats hard shadow — the model blends light it can see.
  • If the first result flickers, try a shorter cut of the same clip.

FAQ

Q1How long can the video be?

Short clips work best — under about 30 seconds. Longer clips cost more credits and are more likely to show seams during fast head movement.

Q2Does it work with someone talking?

Yes. Lip movement is preserved from the target clip; the swapped face inherits the mouth motion of the original speaker.

Q3Is the output watermarked?

No. Every AnyFace result — photo or video, normal or HD — is watermark-free.

Related

Published 2026-07-22.