Comparison

Red Light For Your Eyes vs Replex Gym Tracker & Planner

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

Head to head
About

Red Light For Your Eyes

This app uses a science-backed protocol to simulate deep red light exposure, aiming to combat age-related vision decline by boosting retinal mitochondria and improving color contrast. It offers a simple, distraction-free interface and integrates with Apple Health for wellness tracking.

Highlights
  • Simulates 670nm deep red light
  • Boosts retinal mitochondria
  • Improves color contrast
  • Integrates with Apple Health
  • Distraction-free Liquid Glass UI
  • Optimisation Guide for device settings
Features
Read full description

Take a 3-minute pause to unwind and return to your day with more focus. Build a simple wellness ritual with a red light display, a guided timer, and mindful session tracking. For anyone who wants a quiet break from a busy day. A MOMENT TO RESET Make space between tasks, slow down after a demanding day, or set aside a moment for yourself. Many users tell us these sessions help them de-stress. Keep your routine short, simple, and easy to repeat. FEATURES FOR YOUR DAILY PAUSE • Red light display: A pure red screen for a minimal, distraction-free session. • 3-minute timer: A preset session length that makes a short break easy to fit into your day. • Apple Health integration: Automatically record sessions as Mindful Minutes to track your routine alongside sleep and activity. • Display setup guide: Step-by-step Color Filters instructions to help you configure your screen. • Clean interface: A calm design that keeps attention on your session. • Privacy first: Your health data stays on your apple devices. No tracking. THE SCIENCE BEHIND RED LIGHT Retinal cells need energy to function. Their mitochondria produce ATP - the fuel that powers cellular activity - and mitochondrial function can decline with age. Research into red light therapy, including a 2021 UCL study published in Scientific Reports, has explored how controlled exposure to deep red light at 670 nm may support retinal energy processes and colour contrast sensitivity. A screen is not the same as the light source used in that research. Screens emit a broader spectrum, typically peaking around 620–640 nm, and cannot reproduce a precise 670 nm exposure. Display settings do not make them equivalent to research equipment. The study’s findings do not establish that this app improves vision or increases ATP. Use the app for a mindful pause and to learn about red light research - not as an eye treatment. It is for wellness and education, is not a medical device, and does not replace advice from an eye-care professional. Set aside three minutes. Pause, unwind, and make room to refocus. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.bullte.ch/terms/redlight-privacy-policy

About

Replex Gym Tracker & Planner

Log your gym and calisthenics routines with this comprehensive fitness planner. Track sets, reps, and weight, analyze your progress with detailed analytics, and sync seamlessly across devices. Achieve your fitness goals with intelligent workout management.

Highlights
  • Workout tracking from iPhone and Apple Watch
  • Comprehensive exercise library with muscle map
  • Customizable workout templates
  • Detailed analytics and progress visualization
  • Calendar integration for scheduling
  • iCloud sync across devices
Features
Read full description

Replex is the strength training tracker for iPhone and Apple Watch. Log every set in seconds, see every record, and let an AI coach plan your week — so you get stronger every week and can see it. FREE TO START Logging, the rest timer, Live Activities, Apple Health import, 5 bodyweight plans, records and progress for your recent sessions, and 5 workouts from Apple Watch are free. Replex Pro unlocks everything else. LOG FASTER THAN YOU LIFT • A plate loader shows exactly what goes on each side of the bar • Every set starts from what you did last time, so you just confirm or add weight • “This would be a PR” lights up before you lift • The rest timer starts on its own — a set time, or until your heart rate recovers • Your set, rest and heart rate on the Lock Screen and in the Dynamic Island • Bodyweight and timed exercises built in: “BW + 25 lb”, planks, holds • Kilograms, pounds or stones • Start a workout with Siri APPLE WATCH • Turn the Digital Crown to set weight and reps, tap LOG • Rest countdown on your wrist, with a tap when it’s time to lift • Heart rate, zones and calories, saved to Apple Health • Start on either device — the iPhone and Watch stay in sync in real time SEE YOUR PROGRESS • Weekly volume, sessions and a weekly goal • Records for every exercise, like your heaviest weight and most reps • A chart for every lift, from your first session to today • Runs, walks and rides from Apple Health with route maps, pace and heart-rate zones • Shareable story cards and weekly and monthly recaps PLANS AND EXERCISES • 44 ready-made plans: push, pull, legs, upper/lower, full body and more • 160 exercises with muscle maps, many with illustrations • Build your own templates and put them on your calendar AI COACH (PRO) • Ask for a week (“3 strength days and 2 runs at 6:30 AM”) and get it on your calendar • Multi-week programs that repeat weekly, starting on the date you choose • Builds and edits templates from the exercise library, spaced for recovery • Moves or replaces sessions and checks your calendar for clashes • Answers questions about any workout or run from your own numbers • Nothing changes until you confirm it MADE FOR YOU • Light, Dark or System appearance, and three accents — Volt, Blue and Pink — with matching app icons • iCloud sync across your devices • 54 languages REPLEX PRO • AI Coach, all 44 plans, your own templates and calendar scheduling • Full history with weekly, yearly and all-time views • Unlimited Apple Watch workouts and every share card theme Pro is available as a monthly or yearly subscription, or a one-time lifetime purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the period; manage them in your Apple Account settings. Privacy Policy: https://alexriakhin.com/Replex/privacy.html Terms of Service: https://alexriakhin.com/Replex/terms.html

Screenshots

Red Light For Your Eyes4 screens
Replex Gym Tracker & Planner4 screens

Verdict

The call

The clearest difference is monetization model: Replex Gym Tracker & Planner at freemium against Red Light For Your Eyes's paid. Red Light For Your Eyes's advantage is device support (4 vs 2) and iOS requirement (17.0 vs 26.0). On price, review sentiment, update cadence and ads 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. Red Light For Your Eyes sells 3 one-off in-app purchases and Replex Gym Tracker & Planner sells 5 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 26, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 7 level
Red Light For Your Eyes versus Replex Gym Tracker & Planner: the parameters behind the verdict, then further details
ParameterRed Light For Your EyesReplex Gym Tracker & Planner
PriceFreeFree
Rating4.6 (42 ratings) — better—
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings42 — better—
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationPaidFreemium — better
DevicesiPhone, iPad, Mac, Vision Pro — betteriPhone, Apple Watch
Requires iOS17.0 — better26.0
Further details — not scored
Size45 MB114 MB
Age rating12+4+
DeveloperBulltechAlexander Ryakhin

Customer experience

Red Light For Your Eyes

All ratings42 ratings
Positive95.2%
Neutral0.0%
Negative4.8%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Replex Gym Tracker & Planner

Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Red Light For Your Eyes

One-time3
  • Cellular Supporter$3.00
  • Mitochondria Mate$5.00
  • ATP Architect$10.00
5 purchases

Replex Gym Tracker & Planner

Subscriptions4
  • Weekly Subscription3 Days trial$3.997 Days
  • Monthly Subscription7 Days trial$5.991 Month
  • Annual Subscription$29.991 Year
Show 1 more
  • Annual Subscription7 Days trial$39.991 Year
One-time1
  • Lifetime Access$79.99

Questions

Is Red Light For Your Eyes free?
Red Light For Your Eyes is free to download, with in-app purchases available.
Is Replex Gym Tracker & Planner free?
Replex Gym Tracker & Planner is free to download, with in-app purchases available.
Do Red Light For Your Eyes or Replex Gym Tracker & Planner have ads?
Neither Red Light For Your Eyes nor Replex Gym Tracker & Planner shows ads.
Which is updated more often, Red Light For Your Eyes or Replex Gym Tracker & Planner?
Red Light For Your Eyes ships an update every 3 weeks, and Replex Gym Tracker & Planner every 3 weeks. Most recently, Red Light For Your Eyes was updated on October 26, 2026 and Replex Gym Tracker & Planner on October 12, 2026.

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