Comparison

SEKONIC LD vs LuxLog

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

Head to head
About

SEKONIC LD

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With SEKONIC LD, you can use the full functionality of the spectrometer C-4000. You can remotely control the C-4000 via Bluetooth and view graphs of measurement data in various way. It displays illuminance (lux or foot-candle), deviation (โŠฟuv), color temperature (K), color rendering index (CRI/TM-30), and CIE1931 chromaticity coordinates (x,y). and imports stored data from the C-4000. SEKONIC LD offers upgrade option with in-app purchases (3-month subscription, 12-month subscription), including a 2-week free trial. With the upgrade, you can import drawings such as lighting layouts or site photos, and link measured values directly on them. Even if you stop the measurement midway, you can add notes to the saved data, making it convenient for multiple measurements. You can also attach smartphone images and notes to each measurement data. Location information of sites can also be attached with GPS data. Compile project data into simple reports, output as PDFs, or export as CSVs for further processing. License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

LuxLog

Features
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Keep track of every detail of your lighting setup. Includes inputs for Illuminant color, brightness, DMX, modifiers, and positions, as well as camera settings, attachments and more!

Screenshots

SEKONIC LD4 screens
LuxLog3 screens

Verdict

The call

The clearest difference is price: SEKONIC LD at Free against LuxLog's $9.99. LuxLog's advantage is in-app purchases (none vs 2) and update cadence (every 2 weeks vs every 9 months). On ads, device support and iOS requirement there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

SEKONIC LD is free to download; LuxLog costs $9.99 up front. SEKONIC LD sells 2 in-app purchases, starting at $49.99 per 3 months. LuxLog asks for nothing beyond the download.

UpkeepUpdate frequency

SEKONIC LD ships an update every 9 months, LuxLog every 2 weeks. The most recent releases landed on October 3, 2026 and October 25, 2026 respectively.

Scorecard3 real differences ยท 3 level
SEKONIC LD versus LuxLog: the parameters behind the verdict, then further details
ParameterSEKONIC LDLuxLog
PriceFree โ€” better$9.99
Update frequencyEvery 9 monthsEvery 2 weeks โ€” better
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 โ€” better17.0
Further details โ€” not scored
Size33 MB109 MB
Age rating4+4+
DeveloperSekonicCanary Yellow Applications, LLC

In-app purchases

2 purchases

SEKONIC LD

Subscriptions2
  • 3 months subscription14 Days trial$49.993 Months
  • 12 months subscription14 Days trial$119.991 Year
None

LuxLog

No in-app purchases

Questions

Is SEKONIC LD free?
SEKONIC LD is free to download, with in-app purchases available.
Is LuxLog free?
LuxLog costs $9.99, with no in-app purchases.
Do SEKONIC LD or LuxLog have ads?
Neither SEKONIC LD nor LuxLog shows ads.
Which is updated more often, SEKONIC LD or LuxLog?
SEKONIC LD ships an update every 9 months, and LuxLog every 2 weeks. Most recently, SEKONIC LD was updated on October 3, 2026 and LuxLog on October 25, 2026.

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