ByEye vs ColourTemp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ByEye
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Flat screen displays are much more stable and reliable than the old displays. However, we may still look at our display and wonder whether it is accurate. Does your laptop display white at home match the white at work? Is the balance between the highlights and the shadows right? ByEye let you capture and record the appearance of colours by matching them on the phone display, with the help of the camera.
ColourTemp
This tool measures light sources in Kelvin and detects mains-frequency flicker, helping videographers ensure consistent color temperature and avoid post-production issues. It also calculates banding risk and allows for freezing readings to compare fixtures.
- Color temperature measurement (2500K-9900K)
- Mains frequency flicker detection (50Hz/60Hz)
- PWM dimming detection
- Banding risk calculator
- Freeze and compare readings
- Device calibration for consistency
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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 or one-off lifetime purchase. Pricing and terms are shown at first launch. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: ByEye at none against ColourTemp's 2. ByEye also leads on iOS requirement (16.0 vs 26.0). On price, ads and device support 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
Both are free to download. ColourTemp sells 2 in-app purchases, starting at $9.99 per year. ByEye asks for nothing beyond the download.
| Parameter | ByEye | ColourTemp |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (4 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | — | Every 10 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Subscription |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 2 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | FilmLight Ltd | High Water Films Limited |
In-app purchases
ByEye
No in-app purchases
ColourTemp
- ColourTemp Annual$9.991 Year
- Lifetime access$19.99
