SEKONIC LD vs Off
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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 (⊿uv), 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/
Off
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Do you have an off-peak / peak electricity tariff but keep forgetting to run your washing machine or dishwasher at the right time? Off-Peak Hours is the app for you. See your off-peak hours at a glance Set your time slots once according to your contract, and the app tells you which rate is running right now. Never miss an off-peak period Get a push notification the moment your off-peak hours start. Run your appliances at the optimal time, effortlessly. A countdown always within reach How long until the next off-peak period? The app tells you to the second with a live countdown timer. Right on your home screen Add the iOS widget to your home screen and check your current rate without even opening the app. Set up in seconds An intuitive 24-hour grid. Tap to mark your off-peak and peak hours. Editable at any time from settings. Works with any fixed schedule: standard two-rate tariffs, custom time-of-use plans. You enter the hours from your own contract. Start saving tonight. Privacy policy: https://heures-creuses.web.app/?v=privacy Terms of use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Off at every 2 months against SEKONIC LD's every 9 months. On price, ads, in-app purchases 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. SEKONIC LD sells 2 in-app purchases, starting at $49.99 per 3 months and Off sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
SEKONIC LD ships an update every 9 months, Off every 2 months. The most recent releases landed on October 3, 2026 and October 31, 2026 respectively.
| Parameter | SEKONIC LD | Off |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 33 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Sekonic | Twopoint |
In-app purchases
SEKONIC LD
- 3 months subscription14 Days trial$49.993 Months
- 12 months subscription14 Days trial$119.991 Year
Off
- Fonctionnalités Premium1 Month trial$1.991 Month









