ColourTemp
Colour/Flicker Meter for Video
Only for iPhone
Free · In-App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Now includes lifetime access option!
ColourTemp is a colour temperature and flicker detection tool built for working videographers, DPs, cinematographers and gaffers.
Point the camera at any light source for an instant Kelvin reading. Switch to flicker mode to detect mains-frequency flicker before it becomes a post problem.
COLOUR TEMPERATURE
Measure light from 2500K candlelight to 9900K open sky. White balance is locked to a fixed 5600K reference for consistent, repeatable readings across a shoot. Readings are close approximations — a fast, practical guide for the set, not a replacement for a calibrated colorimeter.
FLICKER DETECTION
Uses 240fps camera sampling and FFT analysis to detect 50Hz and 60Hz mains flicker and harmonics. Also flags PWM dimming on LED fixtures that conventional measurement misses.
BANDING RISK CALCULATOR
Set your project frame rate and shutter speed. ColourTemp calculates instantly whether your current combination will produce banding — and can snap to a safe setting automatically.
FREEZE & COMPARE
Pause a reading to lock a reference. Adjust frame rate and shutter speed while the measurement stays frozen — ideal for comparing multiple fixtures or matching practical lamps.
CALIBRATION
Point at a known 5600K reference and take a five-second calibrated reading. The app stores a custom offset for your device and shooting conditions, improving consistency across a whole production.
Built by a working DP — because practical fixtures don't ask permission, and bad light costs money in post.
No account. No data collected. Everything runs on your device.
Available as an annual subscription. Pricing and terms are shown at first launch.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Adds in app purchase for lifetime access.
The developer, High Water Films Limited, 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
- Provider
- High Water Films Limited
- Size
- 1.7 MB
- Category
- Photo & Video
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Lifetime access USD 19.99
- ColourTemp Annual USD 9.99
- Copyright
- © 2026 High Water Films Limited