Comparison

EaterIQ vs Rhythm LightScore

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

EaterIQ

Instantly understand your food with this intelligent assistant. Scan products, decode nutrition labels, and make healthier choices by transforming complex food information into clear, actionable insights for grocery shopping and daily tracking.

Highlights
  • Scan food products instantly
  • Decode nutrition labels
  • Make healthier choices
  • Understand hidden ingredients
  • Actionable food insights
Features
Read full description

EaterIQ helps you understand what you eat instantly. Scan food products, decode nutrition labels, and make healthier choices with confidence. Whether you’re shopping for groceries, tracking your daily nutrition, or trying to avoid hidden ingredients, EaterIQ turns complex food labels into clear, actionable insights. Privacy Policy: https://www.eateriq.com/privacy Terms of Use: https://www.eateriq.com/terms

About

Rhythm LightScore

This app provides a daily "LightScore" based on your exposure to daylight, its consistency, and your pre-bedtime phone use. It offers insights into your light habits and suggests improvements for better well-being.

Highlights
  • 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
Features
Read full description

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.

Screenshots

EaterIQ4 screens
Rhythm LightScore4 screens

Verdict

The call

The clearest difference is in-app purchases: Rhythm LightScore at none against EaterIQ's 2. Rhythm LightScore also leads on update cadence (every 4 days vs every 4 weeks). EaterIQ's advantage is iOS requirement (15.6 vs 18.0). On price, review sentiment, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. EaterIQ sells 2 in-app purchases, starting at $2.99 per month. Rhythm LightScore asks for nothing beyond the download.

UpkeepUpdate frequency

EaterIQ ships an update every 4 weeks, Rhythm LightScore every 4 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
EaterIQ versus Rhythm LightScore: the parameters behind the verdict, then further details
ParameterEaterIQRhythm LightScore
PriceFreeFree
Rating—5.0 (5 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings—5 — better
Update frequencyEvery 4 weeksEvery 4 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPodiPhone, Apple Watch
Requires iOS15.6 — better18.0
Further details — not scored
Size42 MB26 MB
Age rating4+4+
DeveloperRidham AvaiyaRhythm Innovations, Inc.

Customer experience

EaterIQ

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Rhythm LightScore

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

EaterIQ

Subscriptions2
  • EaterIQ Pro Monthly$2.991 Month
  • Pro Yearly$14.991 Year
None

Rhythm LightScore

No in-app purchases

Questions

Is EaterIQ free?
EaterIQ is free to download, with in-app purchases available.
Is Rhythm LightScore free?
Rhythm LightScore is free to download, with no in-app purchases.
Do EaterIQ or Rhythm LightScore have ads?
Neither EaterIQ nor Rhythm LightScore shows ads.
Which is updated more often, EaterIQ or Rhythm LightScore?
EaterIQ ships an update every 4 weeks, and Rhythm LightScore every 4 days. Most recently, EaterIQ was updated on October 28, 2026 and Rhythm LightScore on October 25, 2026.

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