Comparison

White Balance Meter AI vs Focus Puller

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

White Balance Meter AI

This app transforms your device into a professional light meter, using AI to analyze live camera previews and provide accurate color temperature readings in Kelvin. It helps photographers and videographers achieve perfect white balance without expensive equipment.

Highlights
  • Real-time color temperature in Kelvin
  • White balance compensation and calculation
  • Snapshot capture with color temperature and location
  • Manual focus control
  • Spectrometer for various camera types
  • Save time in post-processing
  • Apple Watch app integration
Features
Read full description

KEV is the #1 White Balance app. KEV app turns your iPhone or iPad into a professional and easy-to-use light meter. Using KEV app is as easy as pie, no sensor required, the in-built camera already got you covered. Minimalist KEV uses AI to analyze live previews and provide accurate white balance data in Kelvin, making it a valuable tool for photographers and videographers. 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 colour temperature of a light source in Kelvin without having to spend hundreds of dollars on professional devices. We calibrated KEV using Sekonic C-700R-U SpectroMaster Colour Meter, and we guarantee from fair to almost 100% accuracy. Just open the KEV app and point the camera on surface or scene. 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 spectrometer for photographers, videographers, cinematographers, gaffers, drones and action cameras. • Save time in post-processing. • Mount your iPhone using hot-shoe over the camera or on a tripod stand and get colour temperature data on the KEV Watch app. • Zoom in to get colour temperature data of a close-range. • Balance Color Temperature of the Ambient Light and Your Light Source. Override the Auto-White Balance and choose settings yourself. Check out these videos shared by KEV users: Karl Weinreich - https://youtu.be/sT78ajMQ4Iw rileyphotos - https://youtu.be/C4oihcY7Dh4 We care about your privacy: https://kevwb.app/privacy/ If you'd like to contact, please send us an email at 29satnam@gmail.com.

About

Focus Puller

This app provides two focus control solutions for Blackmagic cameras with Bluetooth connectivity. It offers manual focus control with extended focus throw and haptic feedback, as well as LiDAR-based focus control for compatible iOS devices. Both methods allow for remote operation separate from the camera operator.

Highlights
  • Manual focus control with extended throw
  • Optional haptic feedback for focus points
  • LiDAR focus control for compatible devices
  • Remote operation from camera operator
  • Focus markers for precision
Read full description

Control focus on your Blackmagic camera over Bluetooth using LiDAR (for auto-focus) or use a manual control. All of the features can be tested for free for an unlimited time. LiDAR FOCUS CONTROL LiDAR Focus Control is available for iOS devices that have a LiDAR scanner. Simply tap a subject on the iPhone screen, or draw a box around something, and the app will follow it and keep it in focus. REMOTE CONTROL Control LiDAR subject tracking using a second device such as an iPad and see a live video stream and the iOS focus device. Tap to track. MANUAL MODE  Manual Mode will work with any iOS device and solves a common problem when using stills lenses to shoot moving pictures: a limited focus throw. Using this app, the focus throw can be extended, allowing precise control to match that of a lens designed for a movie camera. Markers and optional haptic feedback allow the focus puller to feel when the focus reaches a set point without having to look at the image, making the experience closer to a traditional focus puller. Both of these solutions mean the focus puller can stand and operate separate to the camera operator.

Screenshots

White Balance Meter AI4 screens
Focus Puller4 screens

Verdict

The call

The clearest difference is price: Focus Puller at Free against White Balance Meter AI's $2.99. White Balance Meter AI's advantage is rating (4.5 vs 2.9) and in-app purchases (none vs 1). On update cadence, ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Focus Puller is free to download; White Balance Meter AI costs $2.99 up front. Focus Puller sells 1 one-off in-app purchase. White Balance Meter AI asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

White Balance Meter AI holds the better App Store score, 4.5 against 2.9. That said, the two scores are not equally well evidenced: White Balance Meter AI has 263 ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 77% of White Balance Meter AI's written reviews are positive against 50% of Focus Puller's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on November 7, 2026.

Scorecard7 real differences · 4 level
White Balance Meter AI versus Focus Puller: the parameters behind the verdict, then further details
ParameterWhite Balance Meter AIFocus Puller
Price$2.99Free — better
Rating4.5 (263 ratings) — better2.9 (15 ratings)
Positive reviews76.7% of reviews — better50.0% of reviews
Number of ratings263 — better15
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank#55 — better—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS17.1.0 — better18.6
Further details — not scored
Size8 MB5 MB
Age rating4+4+
DeveloperSatnam SinghRobert Meakin

Customer experience

White Balance Meter AI

All ratings260 ratings
Positive88.8%
Neutral1.5%
Negative9.6%
Written reviews60 reviews
Positive76.7%
Neutral5.0%
Negative18.3%

Focus Puller

All ratings15 ratings
Positive40.0%
Neutral13.3%
Negative46.7%
Written reviews24 reviews
Positive50.0%
Neutral12.5%
Negative37.5%

Bugs and requests

White Balance Meter AI

Reported bugs

12 issues
  • App writes over photos
  • Black screen on new phone
  • Cannot save records
  • Save and photo function doesn't work
  • App doesn't have a library
Show 7 more
  • Images not saved to camera roll
  • AirDrop and message don't work
  • App crashes below 2700 Kelvin
  • Inconsistent color temperature readings
  • Odd results between front and back camera
  • Not accurate in wide ranges
  • Changes not immediately visible in Kelvin adjustment

Requested features

9 requests
  • How to set Chinese language
  • Add green/magenta reading
  • Add option for setting languages
  • Add professional features
  • Ability to select specific spot for measurement
Show 4 more
  • Add +/- Kelvin calibration option
  • Allow manual zoom and wide-angle
  • Add stylistic simulation suggestions based on WB
  • Add dark mode

Focus Puller

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

White Balance Meter AI

No in-app purchases

1 purchases

Focus Puller

One-time1
  • Unlock Camera Recording$12.99

Questions

Is White Balance Meter AI free?
White Balance Meter AI costs $2.99, with no in-app purchases.
Is Focus Puller free?
Focus Puller is free to download, with in-app purchases available.
Which has better reviews, White Balance Meter AI or Focus Puller?
White Balance Meter AI is rated higher. White Balance Meter AI averages 4.5 out of 5 from 263 ratings, while Focus Puller averages 2.9 from 15 ratings.
Do White Balance Meter AI or Focus Puller have ads?
Neither White Balance Meter AI nor Focus Puller shows ads.
Which is updated more often, White Balance Meter AI or Focus Puller?
White Balance Meter AI ships an update every 2 months, and Focus Puller every 2 months. Most recently, White Balance Meter AI was updated on November 7, 2026 and Focus Puller on November 7, 2026.

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