Kelvy – White Balance Meter
Kelvin, Tint & Camera Settings
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Your light meter in your pocket. Measure Kelvin and tint, get white balance settings for your camera, and save 5 captures free every week.
Match light to your camera before you roll.
Kelvy turns your iPhone or iPad into a practical white balance meter for filmmaking, photography, lighting setups, and location scouting. Measure Kelvin and green/magenta tint, identify likely light sources, and get settings tailored to your camera—not just a generic number.
CAMERA-READY GUIDANCE
Choose a profile for ARRI, Blackmagic Design, Canon, DJI, Fujifilm, GoPro, Nikon, OM System, Panasonic, RED, Sony, or Generic. Kelvy rounds each reading to the Kelvin and tint increments your camera supports, helping you move from measurement to setup quickly.
WHAT KELVY SHOWS
• Estimated Kelvin color temperature
• Green/magenta tint shift
• Camera-specific white balance and tint settings
• Likely light-source category
• CTO/CTB gel suggestions for balancing mixed lighting
• A live color-temperature graph
BUILT FOR THE WAY YOU WORK
• Capture and save readings with thumbnails and location details
• Export branded photos with measurement overlays
• Copy Kelvin values with one tap
• Apply an offset to match a trusted meter or camera body
• Choose to open Kelvy directly to the Light Meter
FREE TO USE
Kelvy includes 5 captures every week at no cost. Kelvy Pro unlocks unlimited captures.
Measurements are camera-based estimates and may vary by device, reference surface, exposure, and mixed lighting. For best results, aim at a neutral white or gray reference under the light you want to measure. For critical color work, compare with a calibrated meter.
SUBSCRIPTION INFO
Kelvy Pro is available as an auto-renewable subscription. Payment will be charged to your Apple ID account at confirmation of purchase. Your subscription automatically renews unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings.
Privacy Policy: https://kelvyapp.com/privacy
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
UI improvements and bug fixes.
The developer, Michael Cerdeiros, 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 Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Michael Cerdeiros
- Size
- 18.3 MB
- Category
- Photo & Video
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Monthly $2.99
- Yearly $29.99
- Copyright
- © 2026 Michael Cerdeiros