Comparison

Molekule vs PEPPER

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

Head to head
About

Molekule

This app connects to advanced air purifiers and humidifiers, offering real-time air quality monitoring and control. It allows users to track filter status, schedule operation, and utilize features like dark mode for a healthier home environment.

Highlights
  • PECO technology air purification
  • Real-time air quality sensing
  • Filter status tracking
  • Dark mode scheduler
  • Reliable cloud connection
  • Control multiple devices
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

PEPPER

Enhance your workouts with an EMS suit and app. Access a library of tailored exercises for strength, cardio, and recovery, or integrate it with your existing routines. Customize intensity for each muscle group for a personalized fitness experience.

Highlights
  • EMS-tailored workout library
  • Strength, cardio, and recovery programs
  • Integrate with own workouts
  • Adjustable impulse intensity per muscle region
  • Tutorial and expert onboarding
Features
Read full description

Intensify your training with your Electronic Muscle Stimulation suit and app by Pepper. Choose from a constantly evolving library of EMS-tailored workouts for strength, and cardio, and relax, developed with leading EMS experts. Alternatively, intensify your own workout routines and use the app to control your suit. The best fitness experience for beginners and experts alike. Adjust the EMS impulse intensity for every major muscle region individually to fit your needs and fitness level. You will complete a tutorial workout in the app showing you all the components necessary to get the best out of your EMS experience. If you need further assistance, schedule a live onboarding session with one of our experts (via info@peppermove.com) who will explain to you how Pepper works in detail. How to get started with Pepper? · Download the app · Order your Pepper suit at peppermove.com · And start training! Indications for use: The Pepper EMS Training System is an Over-The-Counter device intended to stimulate healthy muscles to improve or facilitate muscle performance. It is to be used by healthy adults only. The Pepper EMS Training System is not intended to be used in conjunction with therapy or treatment of medical diseases or medical conditions of any kind. None of the training programs or operational parameters are designed to target injured or ailing muscles and its use on such muscles is contraindicated. The Pepper EMS Training System’s electrical impulses allow the triggering of action potentials on the motoneurons of motor nerves (excitations). These excitations of motoneurons are transmitted to the muscle fibers via the motor endplate where they generate mechanical muscle fiber responses that correspond to muscle work. Depending on the parameters of the electrical impulses (pulse frequency, duration of contraction, duration of rest, total session duration), different types of muscle work can be imposed on the stimulated muscles. Environment of use: Athletic and Sports Training Environments

Screenshots

Molekule4 screens
PEPPER4 screens

Verdict

The call

Molekule and PEPPER both sit at 4.4 stars, but that hides the real split: 83% of PEPPER's written reviews are positive against 17% of Molekule's. PEPPER also leads on update cadence (fortnightly vs every 2 months). Molekule's advantage is in-app purchases (none vs 2) and ratings volume (12K vs 22). On price, rating, 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. PEPPER sells 2 in-app purchases, starting at $24.90 per month. Molekule asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.4 for Molekule against 4.3 for PEPPER. That said, the two scores are not equally well evidenced: Molekule has 12K ratings behind it against 22, so its average is the more settled of the two. Written reviews are what separate them: 17% of Molekule's written reviews are positive against 83% of PEPPER's.

UpkeepUpdate frequency

Molekule ships an update every 2 months, PEPPER fortnightly. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

Scorecard5 real differences · 5 level
Molekule versus PEPPER: the parameters behind the verdict, then further details
ParameterMolekulePEPPER
PriceFreeFree
Rating4.4 (12K ratings) — better4.3 (22 ratings)
Positive reviews17.5% of reviews83.3% of reviews — better
Number of ratings12K — better22
Update frequencyEvery 2 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.5 — better15.6
Further details — not scored
Size155 MB128 MB
Age rating4+17+
DeveloperMOLEKULE GROUP, INC.Pepper Interactive GmbH

Customer experience

Molekule

All ratings11,705 ratings
Positive83.7%
Neutral3.0%
Negative13.2%
Written reviews338 reviews
Positive17.5%
Neutral7.7%
Negative74.9%

PEPPER

All ratings22 ratings
Positive81.8%
Neutral4.5%
Negative13.6%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

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

PEPPER

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Molekule

No in-app purchases

2 purchases

PEPPER

Subscriptions2
  • PEPPER+ EMS video subscription$24.901 Month
  • PEPPER+ EMS video subscription3 Months trial$199.001 Year

Questions

Is Molekule free?
Molekule is free to download, with no in-app purchases.
Is PEPPER free?
PEPPER is free to download, with in-app purchases available.
Which has better reviews, Molekule or PEPPER?
Molekule is rated higher. Molekule averages 4.4 out of 5 from 12K ratings, while PEPPER averages 4.3 from 22 ratings.
Do Molekule or PEPPER have ads?
Neither Molekule nor PEPPER shows ads.
Which is updated more often, Molekule or PEPPER?
Molekule ships an update every 2 months, and PEPPER fortnightly. Most recently, Molekule was updated on November 1, 2026 and PEPPER on October 25, 2026.

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