KEV app turns your iPhone or iPad into a professional and easy-to-use light meter.
Minimalistic KEV analyses live preview of the scene and gives you accurate white balance data in Kelvin.

Trying to get the perfect White Balance on your DSLR can be annoying. KEV helps you by letting you know what the White Balance should be.
You can measure the color temperature of a light source in Kelvin without having to spend hundreds of dollars on professional devices.

The white balance is a correction of color rendition to make the picture from the camera sensor as similar to the perception by human eyes as possible.

Functions and Capabilities:
• Gets you color temperature in Kelvin in real-time.
• Ability to compensate and calculate the white balance readings.
• Capture a snapshot with color temperature reading and location.
• Ability to manually focus on the scene and objects.
• Minimal yet integral point and shoot capability.
• A go-to light meter for photographers and videographers, saves time in post-processing your photos.

Using KEV app is as easy as pie.
Override the Auto-White Balance and choose settings yourself.

If you'd like to contact, please ping us on IG @codetard or email at

What’s New

Version 5.3

Hey KEVers,
Thanks for using KEV White Balance Meter!

Here's what's new:
• Introducing Correlated Colour Temperature(CCT).
• New app icon, now better and cooler.
• Redesigned user interface, meter has now bigger and bolder font.

As always, any feedback, suggestions or advice can be sent directly to

Ratings and Reviews

4.6 out of 5
31 Ratings

31 Ratings

Prince_Dugri ,

Works like a charm

I work a lot with getting colours right. My ideal is natural colors of skin tones and everything else. Once I get the colours, I then decide to tweak them to warmer or colder. KEV has helped me achieve it, I don’t have to go to Lightroom to do it.

Developer Response ,

We are glad it saved you some time. 🙌

Uniserv USA ,

Not accurate in wide ranges

Long story short is not really accurate it wider ranges. If I come close to a source reflecting light it’s dead on but if I’m checking a scene, it’s off by like +2600 kelvins. Almost like the app is evaluative it on spot lol.

Developer suggestion: you should update with a simple option for us to calibrate the readings by adding a +/- kelvin box we can add +/- numbers. So if your app is reading 5000, Ican have a calibration number of -1500 so it shows me EXACT. I found its off in wider ranges here about 2600 and I compensate the calculation for my cameras white balance and it’s dead on after that.

Developer Response ,

Update: The new update is out with the requested feature. We hope you will come back to try the new updated app. ♥️

Zac Wolff ,

This app rocks

I’m a filmmaker and I use KEV sometimes on set to measure white balance. I never trust my camera’s auto white balance, this app is better.

Developer Response ,

All credit goes to you, you made it possible!

App Privacy

The developer, Satnam Singh, 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.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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