# LAPLACE Persona Tracker — Face capture for VTubing

> Face capture for VTubing (iPhone/iPad app by LAPLACE Live!.)

- Source: https://appshunter.io/ios/app/laplace-persona-tracker/id6808596504 (this page in markdown: same URL + `.md`)
- Developer: [LAPLACE Live!](https://appshunter.io/developer/6815738811)
- Category: Entertainment, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 7 MB
- Languages: American English, Japanese, Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2026-09-22
- Data updated: 2026-10-13
- User reviews in markdown: https://appshunter.io/ios/app/laplace-persona-tracker/id6808596504/reviews.md

## What is LAPLACE Persona Tracker?

LAPLACE Persona Tracker turns your iPhone or iPad into a face-tracking camera for LAPLACE Persona, the VTubing app for Mac, Windows and Linux. Point the front camera at yourself and your Live2D or VRM avatar on the desktop follows your expressions, head movement and eyes in real time.

HOW IT WORKS
• ARKit tracks all 52 facial expression shapes plus head rotation and position, up to 60 times a second.
• Tracking streams over your local Wi-Fi network straight to the desktop. No cloud, no account, no internet connection required.
• Tap Connect and the app finds LAPLACE Persona on your network. If your network blocks discovery, type the address shown in the desktop's tracking panel instead.
• Sit the way you stream and tap Calibrate to make that pose neutral. The app remembers your desktop and your calibration the next time it opens.

PRIVACY FIRST
• Camera video never leaves the device. Only tracking values are sent, and only to the computer you chose.
• The preview draws a wireframe mesh of your face, not the camera feed, so nothing from your room is on screen.
• Normalized Face Mesh, on by default, draws your expressions on a generic face instead of your own, for when the phone itself is on camera.
• No analytics or advertising. Face tracking runs on your devices.

BUILT FOR LONG STREAMS
• Save Energy dims the screen and pauses the preview a few seconds after your last touch, while tracking keeps streaming. Tap to wake.
• Works in portrait and landscape, on iPhone and iPad.

TWO STREAMERS, TWO PHONES
The desktop can pin each tracking source to a specific phone, so two people can drive two avatars on one computer.

REQUIREMENTS
• LAPLACE Persona for Mac, Windows or Linux, available at laplace.live/persona, with a tracking source of type LAPLACE Persona Tracker turned on.
• The phone and the computer on the same local network. The app asks for Local Network permission the first time it connects.
• iOS 17 or later. Face tracking needs Face ID or an A12 Bionic chip or newer; every iPhone that runs iOS 17 qualifies.


## Version history (last 5 releases)

### 1.2.4 — 2026-10-09

• A maintenance update. Nothing changes in how the app works.

### 1.2.3 — 2026-10-06

• The app now uses port 19700 and connects on more Windows PCs. Update LAPLACE Persona on your computer to the latest version as well.
• New in Settings: Port. If you change the port of the LAPLACE Persona Tracker source on your computer, set the same port on your iPhone or iPad.
• In Save Energy, Dimming is now Brightness: choose how bright the dimmed screen stays, from fully black up to 50%. Your current setting carries over.

### 1.2.2 — 2026-10-03

• Save Energy has a new Dimming setting: choose how dark the screen goes, from 50% to fully black.
• The Reset Calibration button has been removed. To start over, sit the way you stream and tap Calibrate again.

### 1.2.1 — 2026-10-01

• When your iPhone or iPad gets too hot to track at 60 fps, a red thermometer now appears beside the face icon.
• The latest LAPLACE Persona also notifies you on your computer when your device needs to cool down.

### 1.2.0 — 2026-09-29

- New languages support

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## More apps by LAPLACE Live!

- [LAPLACE Cycles](https://appshunter.io/ios/app/laplace-cycles/id6816242661)

All apps by LAPLACE Live!: https://appshunter.io/developer/6815738811

## Related topics

[laplace persona tracker](https://appshunter.io/ios/topics/laplace-persona-tracker) · [ifacialmocaptr](https://appshunter.io/ios/topics/ifacialmocaptr) · [live2dviewerex motion tracker](https://appshunter.io/ios/topics/live2dviewerex-motion-tracker) · [face tracking mount by belkin](https://appshunter.io/ios/topics/face-tracking-mount-by-belkin)

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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 2026-10-13.*