Face2FaceAI blends a face from a photo or selfie (the Original) with its mirror image (the Mirror), then places the blended face (the Fixed Face) back into its original photo. You move left to right in the app through three bottom tabs: Input → Blend → Output. All processing happens on your device — photos never leave your phone. Tip: first time through, long-press any control for an instant explanation, or look up controls by name at any time in the Help Glossary in Settings.
Tab 1 — Input
Load your Original — the face whose symmetry you want to fix. Tap the panel’s upload button → Gallery (or Camera).
A face is detected automatically — SingleFace Mode (the default) is intended for photos with one face. For more complex inputs, choose MultiFace Select Mode to select one Original face among several, or Manual Location Mode to reposition a face-detection BBox (Bounding Box).
Tab 2 — Blend
The three previews show your Mirror Face, Original Face, and Fixed Face. Set the sliders, then tap Run Blend (a few seconds to process). Before you run a blend with non-zero settings, Fixed Face just shows a copy of Original Face.
A recommended starting point for blend sliders is: Eye Expression 0.5, Other Features 0.5, Head Position 0.5, and Feather Radius 5.
If the eyes in Fixed Face end up looking the wrong way, but facial symmetry is otherwise improved, try changing Eye Expression to 0.0 and rerunning.
If the corrected face looks stiff or blank, try lowering all sliders by the same amount until it looks natural again — even a gentle correction visibly reduces asymmetry.
Take 2 causes the Original Face and Mirror Face to be blended using a different algorithm when given the same settings. You can retry the blend with Take 2 turned both on and off to see which version you like best.
Re-run as often as you like, adjusting settings in small steps for best results. For additional suggestions about possible fixes, check out Troubleshooting, also in Settings.
Tab 3 — Output
Select Reinsertion Mode — this places the Fixed Face back into your Original photo for the most natural-looking result.
Tap Finalize.
If hair or background looks blurry around the face, or there are hard edges where the face is reinserted, go back and increase Feather Radius (Tab 2) by 5. Also increase Original BBox Size (Tab 1) by 0.1 or 0.2 if you see a double-exposure artifact. Then re-blend and finalize again.