Keep the moment. Cover the faces.
Kakusu detects faces in videos and covers them with a mosaic or solid fill. Choose a video, review the result, and save a new copy—all on your iPhone.
Automatic face masking
Select a video to start face detection and masking. Tracking helps bridge short gaps in detection. Adjust the mask style and extra coverage around faces.
Review at your own pace
Slow down to inspect details or speed up to review the whole video. Compare the original and edited versions. Preview speed does not change the speed of your saved video.
Add masks where you need them
Draw around an area to hide it. Use Start here and End here to set when it appears. Track a moving subject, adjust its position, and undo edits.
On-device processing
Your videos are not uploaded to our analysis servers. No account is required. Your original video stays unchanged.
Save and share
- Export up to 1080p
- Keep or mute audio
- Resume your saved project
- No watermarks
- Version 1.6 and later: free with ads, or ad-free with Pro
- Light and dark appearance
- Japanese and English (English support is included in version 1.2.0)
Free and pro
In version 1.6 and later, save videos without an app-imposed duration limit for free with ads.
Kakusu Pro removes ads with a one-time purchase and no subscription. Existing purchases remain valid. Use Restore purchases to recover an existing purchase. Version 1.5 and earlier limit free saving to 15 seconds, with Pro removing the duration limit.
Before you share
Automatic detection and tracking can miss faces or lose their position, especially with profiles, small faces, low light, or fast motion. Review the entire video and add or adjust masks as needed. Text, license plates, and voices are not hidden automatically.
Longer videos need more processing time and available storage. Some videos may not be processed depending on your device, video format, or resolution.