LUX - Illuminance Meter
LUX Pro
What you get with Pro
- No ads — Removes banner and interstitial ads.
- PPFD display — Shows Photosynthetic Photon Flux Density (µmol/m²/s) for plant growing and photography. Switch between light source types (sunlight / LED / fluorescent / incandescent) for conversion.
- Measurement history — Save measurements with notes and review them later in a list.
- CSV export — Export your saved history as a CSV file to share or transfer.
Pricing
| LUX Pro Monthly (auto-renewing) | ¥300 / month in Japan |
|---|---|
| LUX Pro Annual (auto-renewing) | ¥2,000 / year in Japan (about ¥167 / month) |
| LUX Pro Lifetime (no auto-renewal) | ¥2,980 one-time in Japan |
* The prices above are for Japan. The actual price is the price shown on the App Store and varies by storefront.
* Eligible new subscribers can receive a 7-day free trial on the monthly or annual plan. Only one introductory trial is available within the subscription group.
* The lifetime plan has no free trial and does not auto-renew.
Auto-renewal terms
- If you are not eligible for a free trial, the subscription is billed to your Apple ID at the time of purchase.
- Subscription auto-renews at the same price unless turned off at least 24 hours before the end of the current period.
- Renewal is charged within 24 hours before the end of the current period.
- When a promotional offer is used, the subscription renews at the standard price shown with the offer after the offer period ends.
How to cancel
Go to iPhone Settings > Apple ID > Subscriptions, then select LUX to cancel. Please turn off auto-renewal at least 24 hours before the end of the current period.
Restore purchase
After changing devices or reinstalling the app, use the "Restore Purchase" button in Settings to restore subscriptions and lifetime purchases. You must be signed in with the same Apple ID.