LEHMANN Config vs SEKONIC LD
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
LEHMANN Config
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With the LEHMANN Config App, M410 pro, M420 pro and M610 pro furniture locks with fingerprint module or keypad as well as the GIRO TA rotary handle lock and VERTO ZERO NFC can be configured quickly and easily. The iPhone and lock are connected via NFC. Individual configuration profiles can be created and saved in the app or individual parameter changes can be transferred to the lock using manual configuration. To transfer a configuration, programming mode must be activated in the lock. The iPhone must then be held up to the lock's NFC interface to transfer the configuration.
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 (โฟuv), 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/
Screenshots
Verdict
The clearest difference is in-app purchases: LEHMANN Config at none against SEKONIC LD's 2. SEKONIC LD's advantage is update cadence (every 9 months vs every 30 months) and iOS requirement (16.0 vs 18.6). On price, ads and device support 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
Both are free to download. SEKONIC LD sells 2 in-app purchases, starting at $49.99 per 3 months. LEHMANN Config asks for nothing beyond the download.
LEHMANN Config ships an update every 30 months, SEKONIC LD every 9 months. The most recent releases landed on October 27, 2026 and October 3, 2026 respectively.
| Parameter | LEHMANN Config | SEKONIC LD |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 30 months | Every 9 months โ better |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone | iPhone, iPad โ better |
| Requires iOS | 18.6 | 16.0 โ better |
| Further details โ not scored | ||
| Size | 4 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Lehmann Vertriebsges. mbH & Co. KG | Sekonic |
In-app purchases
LEHMANN Config
No in-app purchases
SEKONIC LD
- 3 months subscription14 Days trial$49.993 Months
- 12 months subscription14 Days trial$119.991 Year









