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.
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.
- 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
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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.
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.
- 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
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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
Verdict
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
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.
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.
Both ship on a similar rhythm, roughly every 2 months. Both last shipped on November 7, 2026.
| Parameter | White Balance Meter AI | Focus Puller |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.5 (263 ratings) — better | 2.9 (15 ratings) |
| Positive reviews | 76.7% of reviews — better | 50.0% of reviews |
| Number of ratings | 263 — better | 15 |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Best chart rank | #55 — better | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 17.1.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 8 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Satnam Singh | Robert Meakin |
Customer experience
White Balance Meter AI
Focus Puller
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
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- 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 moreShow fewer
- 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
White Balance Meter AI
No in-app purchases
Focus Puller
- Unlock Camera Recording$12.99
Questions
Is White Balance Meter AI free?
Is Focus Puller free?
Which has better reviews, White Balance Meter AI or Focus Puller?
Do White Balance Meter AI or Focus Puller have ads?
Which is updated more often, White Balance Meter AI or Focus Puller?
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