# Rhythm LightScore — Light Health Tracker

> Daily light exposure tracker and score for improved well-being. (iPhone/iPad app by Rhythm Innovations, Inc..)

- Source: https://appshunter.io/ios/app/rhythm-lightscore/id6799837500 (this page in markdown: same URL + `.md`)
- Developer: [Rhythm Innovations, Inc.](https://appshunter.io/developer/6799837502)
- Category: Health & Fitness, Lifestyle
- Price: Free
- Rating: 5.00/5 from 5 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.0 · 26 MB
- Languages: American English
- Released: 2026-09-29
- Data updated: 2026-10-24
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/rhythm-lightscore/id6799837500/reviews.md

## What is Rhythm LightScore?

Your LightScore is one number for the light you actually got today: how much daylight, how early it reached you, and how steady your days are. Rhythm measures it for you, scores the day against the sun rather than the clock, and names the one thing worth doing about it.

YOUR LIGHTSCORE
Each day gets a LightScore out of 100, built from three parts. Light Time is how much daylight you get, and when. Consistency is how steady your daylight is day to day. Dark Time, if you connect Screen Time, is based on phone use in the hour before bed. Tap any part of the ring to see its history by week, month, six months or year.

MEASURED, NOT LOGGED
If you wear an Apple Watch, Rhythm reads its Time in Daylight from the Health app. Nothing to remember, nothing to tap. If you don't, your phone's front camera becomes a light meter: hold it facing you, and the minutes you measure count toward your LightScore.

MEET SOL
Sol, a hand-drawn sunflower, lives in your daylight ring and keeps pace with your day: stretching at sunrise, standing tall when you reach your goal, asking for light when you fall behind. Tap Sol and see what happens.

THE LIGHT METER
A live lux readout that tells you what a room is actually worth. An overcast window is a hundred times brighter than a well-lit office, and it takes a meter to believe it. The app itself is painted by the light you're in, so the screen changes as you walk to the window.

SUNSET LOG
Catch the sunset and keep the sky. Rhythm suggests the photos you took around sunset, and turns your week of skies into one image to share.

PHONE USE BEFORE BED
Connect Screen Time to see your phone use in the hour before bed, and how it shapes your Dark Time. The report stays on your phone.

FOR THE RHYTHM LIGHT
Rhythm makes a 100,000-lux sunlight generator for indoor days. With one at home, the app turns it on and off, sets its brightness, runs routines that follow sunrise and sunset on the days you choose, and can ring a wake alarm after your light comes on. Everything else works without it.

ON APPLE WATCH
Today's daylight and Sol on your wrist, read straight from Health.

HONEST ABOUT WHAT IT KNOWS
Coverage sits next to every finding ("15m in the light today, measured across 3 check-ins"), so a sampled day never passes as a watched one. The camera reading is an estimate, good to a band rather than to the lux, and the app says so plainly.

PRIVACY
As a light meter, the camera reads exposure settings, not pixels: no photo or video is captured, and it runs only while the app is open. Sunset photos stay on your phone unless you share them. Rhythm never writes to Health; it reads Time in Daylight and your sleep schedule, nothing else. Your readings are stored with your account so your history survives a new phone, and Delete Account removes all of it, from inside the app.

Rhythm is a wellness app. It does not diagnose, treat, cure or prevent any condition, and it is not a substitute for medical advice.

## Key features

- Daily LightScore out of 100
- Measures Light Time, Consistency, and Dark Time
- Integrates with Apple Watch Health data
- Uses phone camera as a light meter
- Visualizes daily progress with Sol character
- Sunset photo capture and sharing

## Is Rhythm LightScore safe?

Not enough ratings yet to assess Rhythm LightScore.

## Is Rhythm LightScore legit?

Rhythm LightScore has limited verification signals. The AppsHunter Legitimacy Score for Rhythm LightScore is 58 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/rhythm-lightscore/id6799837500/reviews.md

### 5/5 — Cool App☀️☀️☀️☀️

*2026-10-09*

It was wild seeing how dim my home actually is? I need to go outside 😂

### 5/5 — Best health app ever

*2026-10-05*

Helped me change my behavior and was amazing!

## Frequently asked questions about Rhythm LightScore

### What is Rhythm LightScore?

Rhythm LightScore is a wellness app that provides a daily "LightScore" out of 100. This score is calculated based on the amount of daylight you get, how consistent your light exposure is, and your phone usage in the hour before bed.

### How does Rhythm LightScore measure light?

If you have an Apple Watch, it reads "Time in Daylight" from the Health app. If not, the app uses your phone's front camera as a light meter to measure ambient light levels.

### Can Rhythm LightScore track my phone use before bed?

Yes, by connecting to Screen Time, Rhythm LightScore can show your phone usage in the hour before bed and how it impacts your "Dark Time" score. This report is kept private on your phone.

### Is Rhythm LightScore accurate?

The app is transparent about its measurements, noting when data is sampled rather than continuously monitored. Camera readings are estimates, and the app clearly states their accuracy band.

### What devices does Rhythm LightScore support?

Rhythm LightScore is available for iPhone and Apple Watch. It leverages Health app data from your Apple Watch for seamless tracking.

### How often is Rhythm LightScore updated?

The latest version is 1.4, and the app was last updated on October 16, 2026. This indicates a consistent update schedule from the developer.

### Is Rhythm LightScore free to use?

Yes, Rhythm LightScore is available for free. There are no in-app purchases or advertisements mentioned, making it a completely free experience.

### Does Rhythm LightScore collect personal health data?

Rhythm LightScore reads "Time in Daylight" and your sleep schedule from the Health app but does not write any data to it. Sunset photos are stored locally unless you choose to share them, and account data can be deleted from within the app.

## Version history (last 5 releases)

### 1.5 — 2026-10-22

Notifications, rewritten:
• A good-morning note when your day starts.
• A nudge when your morning light is running behind, and an afternoon break when the day needs more light.
• A note the moment you reach your daily goal.
• A reminder to wind down before bed.
No streak pressure, and tapping one takes you to the right place.

Your LightScore, clearer:
• Tap the number in the ring for your LightScore's history by week, month, six months and year.
• The breakdown under the ring now adds up to the score.
• Consistency counts only days with readings, so a new phone or a day on the charger no longer counts against you.
• Today stays out of the averages until it's over, the hourly chart shows every lit hour, and the report turns to the new day at midnight.

Also new: the weekly sunset recap shows only the skies you logged, the Apple Watch app uses the iPhone's typeface, and phone sign-in is more reliable.

### 1.4 — 2026-10-16

We're now Rhythm LightScore. Same app, new name.

Routines for your Rhythm Light, redesigned:
• See each routine laid out along your day, from midnight to midnight.
• Drag the sun and moon handles to set when your light turns on and off.
• Turn on at sunrise and off at sunset, or pick exact times.
• Set brightness on a simple ring, with fade up and fade down sliders.
• Your wake alarm sits on the timeline: drag the bell to choose when it rings.

Fixes and polish throughout.

### 1.3 — 2026-10-14

Routines for your Rhythm Light, redrawn:
• Drag the ends of a routine's ring to set its times, or flick through them.
• Turn on at sunrise and off at sunset, or pick exact times.
• See the fade up, the fade down and your wake alarm drawn right on the page.
• Smoother controls throughout, with a gentle tick as you turn the brightness.

Also:
• Your LightScore switches between days and weeks instantly, even with Screen Time on.
• Fixes and polish.

### 1.2 — 2026-10-13

• Sol, the sunflower in your daylight ring, is newly hand-drawn and animated, and reacts when you tap it.
• Wake alarm: have an alarm ring a set time after your Rhythm light comes on.
• Routines can repeat on the days you choose, with simpler fade controls.
• Tap any part of your Light Score ring to see its history.
• Sunset suggestions now show only photos that look like sunsets.
• Screen Time stays connected until you turn it off.
• A new app icon.
• Your Light Report moves between weeks and days faster.
• Daylight syncs in the background, so reminders know how your day is going.
• Easier light setup, Light Control that's readable at night, and many smaller fixes.

### 1.1 — 2026-10-09

Sol has come to Apple Watch.

• Sol, our sunflower, now stands in your Watch's daylight arc. Tap Sol on your iPhone or Watch to say hi.
• Each launch opens with a sunrise.
• Dark Time shows your night-by-night history, next to Light Time and Consistency.
• Screen Time reports load without flickering.
• Your Light Report is ready as soon as you open it.
• Send feedback or contact support from Account.
• Off your light's Wi-Fi? Control waits and reconnects by itself.
• Shorter, clearer text throughout, plus fixes and polish.

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*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 2026-10-24.*