# Lux Therapy — Measure Light Exposure > Measures light exposure in lux-minutes for well-being and Vitamin D estimation. (iPhone/iPad app by Daniel Iannicelli.) - Source: https://appshunter.io/ios/app/lux-therapy/id6747880435 (this page in markdown: same URL + `.md`) - Developer: [Daniel Iannicelli](https://appshunter.io/developer/418806912) - Category: Health & Fitness, Lifestyle - Price: Free - Rating: 3.50/5 from 2 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 16.6 · 10 MB - Languages: English - Released: 2025-07-18 - Data updated: 2026-06-01 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/lux-therapy/id6747880435/reviews.md ## What is Lux Therapy? Lux Therapy App is a simple light measurement app designed to help optimize your exposure to natural and artificial light for enhanced well-being. The app measures ambient light levels in lux-minutes for potential mood enhancement, circadian rhythm regulation, and overall health. Additionally, Lux Therapy estimates your potential Vitamin D synthesis based on light exposure in your current environment.  This app is designed as a simple light calculator to estimate the amount of light exposure you are getting in your current environment as that environment changes throughout the day. Manually set to full sun, daylight, dim room, cloudy day, office, late night, etc. Helpful to pinpoint and estimate light exposure goals. The app empowers users to harness the power of light for improved energy, focus, and wellness. Key Features: Lux (Light Exposure) Measurement: Accurately measures ambient light intensity in real-time using your device's light sensor. Lux (Light Exposure) Calculator: Measures the amount of light you are receiving throughout the day in different environments. Lux (Light Exposure) Goals: Set a customizable light exposure goal and use the light exposure tabs to estimate if you are getting enough light in your environment daily. Notifications to remind you to hit your customizable light exposure goal. Vitamin D Estimation: Calculates potential Vitamin D production based on light exposure, skin type, current location, and cloud cover. User-Friendly Interface: Intuitive design with customizable settings for all users. Ideal For: Individuals seeking to improve mood, regulate sleep, or boost Vitamin D levels through optimized light exposure. ## Key features - Measures ambient light in lux-minutes - Estimates Vitamin D synthesis - Customizable light exposure goals - Reminders for light exposure goals - User-friendly interface ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/lux-therapy/id6747880435/reviews.md ### 2/5 — Not functional *2026-02-07* Disappointed that there is not a way to enter time under a therapeutic lamp I always do an hour under a Carex Theraputic lamp which can be entered as daylight and time frame total minutes. However I want the app to measure my sunlight throughout the day via my Apple Watch but the tracking exposure does not co to us to run if you leave the app to go about your day. Plus you have to listen to the level of sunlight va it automatically sensing via watch. Not very practical other than tracking your Theraputic light sessions I guess. The Lux measure via camera is good but other than the camera luc measure & tracking your light lamp sessions not practical otherwise. ## Frequently asked questions about Lux Therapy ### What is Lux Therapy? Lux Therapy is a health and fitness app that measures ambient light levels in lux-minutes. It helps users optimize their light exposure for potential mood enhancement, circadian rhythm regulation, and estimates Vitamin D synthesis. ### How does Lux Therapy estimate Vitamin D synthesis? The app calculates potential Vitamin D production by considering your light exposure, skin type, current location, and cloud cover. This feature helps users understand their exposure in different environments. ### Can I set goals with Lux Therapy? Yes, Lux Therapy allows you to set customizable light exposure goals. The app provides notifications to remind you to hit your daily goals, helping you manage your light intake effectively. ### What devices does Lux Therapy support? Lux Therapy is currently supported on iPhone devices. The app utilizes the device's light sensor for accurate measurements. ### How accurate is Lux Therapy's light measurement? Lux Therapy measures ambient light intensity in real-time using your device's built-in light sensor. The app is designed as a simple light calculator for estimating exposure in various environments. ### Does Lux Therapy have ads? No, Lux Therapy does not contain advertisements. The app is free to download and use without any ad interruptions. ### What is the user sentiment for Lux Therapy? Based on available data, Lux Therapy has a rating of 3.5 stars from 2 ratings. This suggests a mixed reception from its current user base. ### How often is Lux Therapy updated? Lux Therapy was last updated on July 18, 2025, with version 1.0. The app was also released on the same date, indicating it is a new application. ## Version history (last 1 release) ### 1.0 — 2025-07-18 No release notes. ## More apps by Daniel Iannicelli - [Ice Cube Pong](https://appshunter.io/ios/app/ice-cube-pong/id807498214) - [Spin Spin Spin](https://appshunter.io/ios/app/spin-spin-spin/id820346964) - [Count the Coins 2](https://appshunter.io/ios/app/count-the-coins-2/id966573715) - [Zen Vibes - Calming Visuals](https://appshunter.io/ios/app/zen-vibes-calming-visuals/id1554358912) - [Neck Posture Fitness](https://appshunter.io/ios/app/neck-posture-fitness/id1643717371) All apps by Daniel Iannicelli: https://appshunter.io/developer/418806912 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*