Post Green
On-set chroma-key & tracking
Free · In‑App Purchases
Turn any screen into an instant chroma-key & tracking reference — no gear, no setup. Built for film sets.
Post Green turns any iPhone, iPad, or Mac into an instant on-camera reference for chroma-key and motion-tracking shots — no green screen fabric, no printed markers, just your device on set.
FEATURES
• Solid-color backdrop in any color, not just green
• Configurable tracking marker grid (rows, columns, size, color, shape, offsets)
• Five save slots to instantly recall your favorite setups
• Full Screen or Window mode on Mac, with a custom window title
• Clean, distraction-free interface built for fast setup between takes
Whether you're calibrating a tracking rig, framing a quick pickup shot, or need a reliable color reference on the fly, Post Green is ready in one tap.
Post Green works fully before and after purchase — the one-time Full Version unlock simply supports ongoing development. No subscriptions, no ads, no accounts, no data collection.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Minor improvements and bug fixes.
The developer, POST sp. z o.o., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- POST SP Z O O
- Size
- 3.1 MB
- Category
- Photo & Video
- Compatibility
Requires iOS 18.2 or later.
- iPhone
Requires iOS 18.2 or later. - iPad
Requires iPadOS 18.2 or later. - Mac
Requires macOS 15.2 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Full Version $2.99
- Copyright
- © 2026 POST sp. z o.o.