Lucent Downloads & RevenueLucent: Reading Light Check · App Store
Lucent - 阅读光线检测与用眼休息
Not in any tracked top chart right now.
Updated 11 Nov 2026 · rankings refresh through the day
Developer志杰 张
CategoryUtilities
Price1.00 CNY
Released
Rating★ 0.0 (0)
Version1.2
Age rating4+
First seen by us
3 Oct 2026
3 Oct 2026Lucent: Reading Light Check update history & changes
Last change · 4 events since 25 Aug 2026Full timeline ↓📈Dropped out of every chart we track🆕First spotted by AppInsider📦Version 1.2🆕Released on the App Store
Full timeline · 4 events
- 📈Lucent: Reading Light Check dropped out of every chart we trackLast seen 7 Oct
- 🆕Lucent: Reading Light Check first spotted by AppInsider#27 in Top Paid · Utilities · China
- 📦Lucent: Reading Light Check version 1.2Bug fixes and performance improvements.
- 🆕Lucent: Reading Light Check released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
0.0 ★
0 ratings
Measured
Lucent: Reading Light Check on the App Store
App details
App ID
6800970800
Publisher
志杰 张
On the store since
Aug 2026
Under a year
Minimum OS
iOS 26.2+
iPhone 11 and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
2
EN ZH
Size
2 MB
Also listed in
Lifestyle
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
0.0 ★
0 ratings
Measured
Ratings
0
Measured
About Lucent: Reading Light Check
Lucent helps you check the light where you read. Using your iPhone camera, it estimates ambient light and gives you a clear reading-light assessment. It also adjusts suggested break intervals as the light changes.
CHECK YOUR READING LIGHT
Point your iPhone toward your reading area. Lucent shows an estimated light level and tells you whether the conditions are suitable for reading.
BREAKS THAT RESPOND TO LIGHT
Light conditions shape Lucent’s suggested break interval. Start with a 20-minute baseline, then adjust it from 10 to 30 minutes in Settings. The schedule is Lucent’s own model, inspired by 20-20-20 and adjusted for ambient light. It is not a medical standard or medical advice.
KEEP A LOCAL RECORD
Review light samples over time and add notes for your desk, bedside, window, classroom, or outdoor reading. Gaps mean no measurement was taken; Lucent does not fill them in.
CAMERA, WITHOUT PHOTOS
Lucent processes camera data on your device while the app is open. It does not take or save photos or video. Your readings and notes stay on your device. Lucent has no account, ads, analytics, or network connection.
WHEN A LIGHT READING IS UNAVAILABLE
The timer still works from a fixed baseline if camera access is unavailable or your device cannot provide a light estimate. Lucent never guesses a reading.
Lucent estimates light; it is not a calibrated light meter. Its break suggestions are not a substitute for advice from an eye-care professional.
CHECK YOUR READING LIGHT
Point your iPhone toward your reading area. Lucent shows an estimated light level and tells you whether the conditions are suitable for reading.
BREAKS THAT RESPOND TO LIGHT
Light conditions shape Lucent’s suggested break interval. Start with a 20-minute baseline, then adjust it from 10 to 30 minutes in Settings. The schedule is Lucent’s own model, inspired by 20-20-20 and adjusted for ambient light. It is not a medical standard or medical advice.
KEEP A LOCAL RECORD
Review light samples over time and add notes for your desk, bedside, window, classroom, or outdoor reading. Gaps mean no measurement was taken; Lucent does not fill them in.
CAMERA, WITHOUT PHOTOS
Lucent processes camera data on your device while the app is open. It does not take or save photos or video. Your readings and notes stay on your device. Lucent has no account, ads, analytics, or network connection.
WHEN A LIGHT READING IS UNAVAILABLE
The timer still works from a fixed baseline if camera access is unavailable or your device cannot provide a light estimate. Lucent never guesses a reading.
Lucent estimates light; it is not a calibrated light meter. Its break suggestions are not a substitute for advice from an eye-care professional.
Latest updates
1.2
Bug fixes and performance improvements.
