Comparison

Molekule vs Gym Lens

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

Head to head
About

Molekule

Monitor your indoor air quality in real-time, track pollutant levels, and control your Molekule air purifiers remotely. Get personalized air quality scores and filter change notifications to maintain optimal home air.

Highlights
  • Real-time air quality monitoring
  • Personalized Air Score
  • Remote purifier control
  • Pollutant tracking (PM2.5, VOCs, humidity)
  • Filter change notifications
  • Room-by-room air quality management
Features
Read full description

Introducing Air Score 2.0 and support for PECOAir and PECOAir+. See what's in your air and how to improve it. KNOW YOUR AIR SCORE One number for the air in your home, updated as conditions change, with a color band so you know at a glance whether things are good, moderate, or need attention. CONTROL ALL OF YOUR MOLEKULE DEVICES Adjust fan speed, switch modes, and manage all your Molekule devices from anywhere. Connects with new PECOAir and PECOAir+ purifiers, Glow Humidifier, and legacy Air, Air Mini, Air Mini+, and Air Pro purifiers. LOCATION MANAGEMENT Monitor your air quality by room or by property, wherever you are. If you’ve got a Molekule purifier there, you’ve got a reading. KNOW WHAT'S IN YOUR AIR Fast readings from PECOAir's sensor suite: fine particles (PM2.5 and PM10), VOCs, humidity, and temperature. Indoor readings alongside outdoor conditions, so you always have context. TRENDS THAT MEAN SOMETHING Get notified when pollutant levels rise, and see what triggered the spike. Look back by day, week, or month to see what's really shaping your air, from cooking and cleaning to pollen and wildfire smoke. NEVER MISS A FILTER CHANGE See how much life your filter has left and get notified when it's time for a replacement, so your purifier keeps performing at its best. Molekule products are designed for general wellness and improving indoor air quality. They are not medical devices and are not intended to diagnose, treat, cure, or prevent any disease. Questions or feedback? Reach our team at help@molekule.com or visit help.molekule.com.

About

Gym Lens

Effortlessly create a weekly workout plan by photographing gym equipment. The app identifies machines, suggests profiles, and helps you build routines with editable notes and history tracking. Enjoy live session tracking with rest timers and machine substitution options.

Highlights
  • AI-powered machine identification
  • Customizable workout plans
  • Live workout tracking
  • Rest timer and session logging
  • Saved machine library
  • Workout history
Features
Read full description

Gym Lens helps you turn gym equipment into a clear weekly workout plan. Choose a photo of a machine, review a suggested built-in equipment profile, and confirm what it trains before adding it to your routine. Save useful machines to your library, assign them to weekdays, edit notes like sets or seat position, and mark completed training days when you finish. The app is designed for practical gym use: quick machine lookup, reusable profiles, simple scheduling, live workout tracking, and a local workout history that helps you see what you trained. Features: - Machine photo assist using on-device Apple Vision signals - Built-in equipment profiles with target muscles, exercises, and setup cues - Weekly workout schedule organized by day - Live Gym Session Mode with set logging, rest timer, setup memory, and busy-machine substitutes - Editable notes for sets, reps, and setup reminders - Saved machine library - Completed workout history - Modern light, dark, and gym-inspired app themes - Tutorial tab with privacy notes and quick-start guidance Photo Assist is a suggestion tool. Always confirm the selected machine and follow the safety instructions posted on gym equipment. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Molekule4 screens
Gym Lens2 screens

Verdict

The call

The clearest difference is rating: Gym Lens at 5.0 against Molekule's 4.4. Gym Lens also leads on update cadence (daily vs every 2 months). Molekule's advantage is in-app purchases (none vs 1) and ratings volume (12K vs 1). On price, 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. Gym Lens sells 1 in-app purchase, starting at $4.99 per month. Molekule asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Gym Lens holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Molekule has 12K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Molekule ships an update every 2 months, Gym Lens daily. Both last shipped on November 6, 2026.

Scorecard6 real differences · 4 level
Molekule versus Gym Lens: the parameters behind the verdict, then further details
ParameterMolekuleGym Lens
PriceFreeFree
Rating4.4 (12K ratings)5.0 (1 ratings) — better
Positive reviews17.5% of reviews—
Number of ratings12K — better1
Update frequencyEvery 2 monthsDaily — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.5 — better17.0
Further details — not scored
Size174 MB3 MB
Age rating4+4+
DeveloperMOLEKULE GROUP, INC.DANIEL PIOTR CYWINSKI

Bugs and requests

Molekule

Reported bugs

4 issues
  • App crashes frequently
  • Inability to change app language
  • Devices randomly disconnecting from app
  • Inaccurate filter life reporting

Requested features

3 requests
  • Scheduling options for auto mode
  • Ability to order filters directly from app
  • Improved app stability and reliability

Gym Lens

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Molekule

No in-app purchases

1 purchases

Gym Lens

Subscriptions1
  • Gym Lens Premium1 Month trial$4.991 Month

Questions

Is Molekule free?
Molekule is free to download, with no in-app purchases.
Is Gym Lens free?
Gym Lens is free to download, with in-app purchases available.
Which has better reviews, Molekule or Gym Lens?
Gym Lens is rated higher. Molekule averages 4.4 out of 5 from 12K ratings, while Gym Lens averages 5.0 from 1 ratings.
Do Molekule or Gym Lens have ads?
Neither Molekule nor Gym Lens shows ads.
Which is updated more often, Molekule or Gym Lens?
Molekule ships an update every 2 months, and Gym Lens daily. Most recently, Molekule was updated on November 6, 2026 and Gym Lens on November 6, 2026.

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