TwinPolarCam

Discover Dual-Camera Recording Without Compromise

Tired of choosing between yourself and the scene? TwinPolarCam is a dual-camera video recorder for creators. Using Apple Multi-Cam technology, it records front and rear cameras at the same time, composes a main view with customizable picture-in-picture, and saves to Photos.

No registration. No account. No cloud upload. All videos stay on your device until you export or share.

Three Scenarios

Scenario 1: Travel and Cycling Vlogs
Front camera captures your reactions. Rear camera captures the road and scenery.

Scenario 2: Tutorials and How-To Content
Front camera shows your expression. Rear camera shows hands and details.

Scenario 3: Family and Daily Moments
Front camera catches a smile. Rear camera captures the full scene.

Dual-Camera Recording
- Simultaneous front and back capture in one multi-track file
- Swap main and PiP roles anytime
- Independent main and PiP settings
- Up to 4K, 24 or 30 fps, HDR, stabilization, and night mode
- Stereo audio with quality, format, and channel options

Picture-in-Picture
- Drag to move, pinch to resize
- Border width, color, corner radius, opacity, and size
- Live preview before recording

Recording Controls
- Start, stop, and pause with one hand
- Screenshot main plus PiP to Photos while recording
- Flashlight Off, On, or Auto
- Pinch-to-zoom on main preview
- Pause preview to save battery
- Landscape-first interface with haptic feedback

Export and Pending Library
- Auto compose after stop, or export manually from Pending
- Preview, share, delete, and batch export
- List or grid layout with adjustable columns
- Export queue, oldest first, with progress and remaining time
- Cancel one or all exports
- Optional auto-delete of originals after export
- Auto or manual export in Settings
- Clear errors for permission, storage, and file issues

Reliable Recording
- Auto pause and resume after calls, Siri, and backgrounding
- Emergency auto-save when backgrounded too long
- Crash recovery restores valid segments on next launch
- Timer freeze during pause
- Control Center without leaving app does not pause recording
- Does not interrupt music until you record

Live Activity
- Lock Screen and Dynamic Island status on supported devices
- Background safety countdown with quick return
- Can be disabled in Settings

Guides and Settings
- First-launch onboarding and built-in guides
- About page with feature and privacy overview
- Grouped settings for main camera, PiP, audio, general, with reset
- Light, Dark, Match System, keep screen awake, portrait lock
- English, Simplified Chinese, and Traditional Chinese
- Email feedback, in-app rating, optional developer tip

Privacy and Local Data
- No login, no account, no server-side user data
- On-device recording and composition
- Original cache excluded from iCloud Backup
- Photos Add Only permission when saving

Why TwinPolarCam
- Dual perspectives in one take
- Easy for beginners, deep settings for advanced users
- Work