# KidsMask:Face Blur for Privacy — Blur Faces in Videos & Photos

> Blur Faces in Videos & Photos (iPhone/iPad app by kou works.)

- Source: https://appshunter.io/ios/app/kidsmaskface-blur-for-privacy/id6783262085 (this page in markdown: same URL + `.md`)
- Developer: [kou works](https://appshunter.io/developer/1871986162)
- Category: Photo & Video, Social Networking
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 34 MB
- Languages: American English, Japanese
- Released: 2026-07-27
- Data updated: 2026-09-01
- User reviews in markdown: https://appshunter.io/ios/app/kidsmaskface-blur-for-privacy/id6783262085/reviews.md

## What is KidsMask?

■ Share Without Worrying About Other Kids' Privacy

Want to post your child's birthday party or soccer game video on Instagram? Worried about other children's faces being recorded? KidsMask solves this with one tap.

KidsMask is an iPhone app that lets you keep YOUR child's face visible while blurring all other faces in videos and photos. Everything happens on your device. No cloud uploads. No face data stored.


■ What You Can Do

【Privacy-First Face Mosaic】
- Automatically detects and mosaics faces in videos and photos
- Tap to protect specific faces (keep them visible)
- Supports up to 4K video resolution
- Simple, intuitive operation

【Three Mosaic Styles】
- Pixel mosaic (Free)
- Gentle blur (Pro)
- Emoji stickers (Pro) — any standard emoji

【Manual Edit Mode】
Auto-detection isn't perfect. KidsMask includes a manual edit mode to catch faces that automatic processing missed — your last line of defense for privacy.

For videos, keyframe-based masks follow moving subjects with smooth interpolation between frames.

【Smart Video Tracking】
Camera pans, brief occlusions, people crossing in front — KidsMask's color-based tracking keeps your protected child identified throughout the video.


■ Privacy You Can Trust

KidsMask is built on a fundamental commitment to privacy:

- No face data is stored on your device
- Nothing is uploaded to any cloud service
- No tracking, no analytics, no ads
- All processing happens locally on your iPhone
- Even your protected child's face data is never persisted

We respect not only the privacy of the children in your videos, but also yours.


■ Free Features

- Process videos up to 1 minute long
- 3 photos per day
- Pixel mosaic style
- Basic manual editing

The core privacy protection — keeping your child visible while mosaicing others — works fully in the free version.


■ KidsMask Pro (One-Time Purchase)

- Unlimited video and photo processing
- Gentle blur mosaic style
- Emoji stickers (any standard emoji)
- Batch processing for multiple files
- Unlimited manual editing keyframes
- No watermark

Pro is a one-time purchase, not a subscription. Buy once, use forever.


■ Perfect For

- Parents sharing birthday party videos on social media
- Sports game recordings with multiple children
- School play and recital videos
- Family vacation photos at public places
- Anyone who wants to share kids' moments responsibly


■ Why On-Device Matters

Many face processing apps send your photos and videos to cloud servers. This means your private family moments — and other children's faces — exist on someone else's computer.

KidsMask never does this. Everything happens on your iPhone, using Apple's Core ML and Vision frameworks. Your data is yours, period.


■ Requirements

- iOS 17.0 or later
- iPhone (iPad not supported)


■ Support

Support site: https://hibinokou-spec.github.io/kidsmask-support/
Contact: contact@kou-works.jp


■ About the Developer

KidsMask is created by kouworks (Japan), an independent iOS developer focused on privacy-respecting tools for families.

Website: https://kou-works.jp/

Built using Apple's on-device machine learning and computer vision frameworks. No external services, no cloud dependencies.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| KidsMask Pro | $4.99 | one-time |



## Version history (last 4 releases)

### 1.3 — 2026-08-24

• Fixed exports failing if the screen locked or you switched to another app partway through. The screen now stays on while an export is running.
• When an export does fail, KidsMask now explains why. Your edits are kept, so you can pick up where you left off with "Try again".
• Fixed temporary files building up and using space on your iPhone. Files that are no longer needed are now cleaned up automatically.

### 1.2 — 2026-08-22

Fixed an issue where some menus and buttons still appeared in Japanese when the app was set to English

### 1.1 — 2026-08-21

• HDR videos shot with the iPhone camera now keep their original colours. Fixed blown-out highlights and washed-out contrast in the exported video.
• New: go straight to manual mode without waiting for face detection — handy for hiding signs, documents and anything that isn't a face.
• Added "Keep all" and "Mosaic all" to the face selection screen, so you no longer have to tap every face one by one.
• Added a Home button to every screen, making it quicker to switch to a different video.

### 1.0 — 2026-07-27

No release notes.

## More apps by kou works

- [展示会名刺](https://appshunter.io/ios/app/id6758286019)
- [劇画集中線!!!](https://appshunter.io/ios/app/id6758319039)
- [CatEye](https://appshunter.io/ios/app/cateye/id6759896469)
- [NetaGazo](https://appshunter.io/ios/app/netagazo/id6760393435)
- [TimeCam - Retro Photo Decades](https://appshunter.io/ios/app/timecam-retro-photo-decades/id6760904276)
- [縦読みメーカー](https://appshunter.io/ios/app/id6761042533)

All apps by kou works: https://appshunter.io/developer/1871986162

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-01.*