Comparison

Noise Generator vs Molecule Simulator

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

Head to head
About

Noise Generator

Generate a variety of custom color noises, including brown, pink, white, blue, and violet. Fine-tune your audio experience with low and high cut filters. This app offers a simple interface that remembers your settings for quick, personalized sound generation.

Highlights
  • Generate brown, pink, white, blue, and violet noise
  • Low and high cut filters for customization
  • Simple interface remembers settings
  • Advanced mathematical formulas for audio generation
  • AirPlay support for external devices
Features
Read full description

Generate custom color noises including brown, pink, white, blue, and violet. Customize noise further by using low and high cut filters. Simple modern interface remembers all settings for quick generation and utilizes advanced mathematical formulas to generate all audio waves. There are no audio files included in the application binary which keeps app size to a minimum and app performance to a maximum. What are benefits of listening to white noise? - Helps you sleep by blocking distractions - Pacifies fussy and crying babies - Relaxes and reduces stress - Increases focus while enhancing privacy - Soothes headaches and migraines - Masks tinnitus (ringing of the ears) What are the different sound colors? - White noise sounds similar to static of an analog TV or radio station that has stopped broadcasting. White noise has equal energy across all sound frequencies. - Brown noise sounds like a powerful waterfall. It has more energy at the lower frequencies and if you have a good speaker system with a subwoofer you should be able to really feel it. - Pink noise's upper sound frequencies don't fall off as fast as they do with brown noise, so you'll get a little more punch. The most interesting thing about pink noise is it's found in almost all electronic devices (known as flicker noise) and even in biological systems. - Blue and violet noise are the opposites of pink and brown noise, respectively, and sound like spraying water from a garden hose. It has more energy at the higher frequencies which means more treble and less bass. - Curious to learn more about color noises? Check out this article for all the details: http://www.tmsoft.com/white-noise-player/ Directions: Drag the Sound Color slider to select brown, pink, white, blue, violet, or somewhere in-between. Next, drag the low and high cut filters to further customize to your liking. Adjust device volume using the on-screen volume slider to a comfortable level. You can also specify to play audio to any AirPlay supported device. Toggle audio playback using the Play/Pause button. Created by the audio experts at TMSOFT that brought you the famous White Noise app. Check out all our apps and sounds at http://www.tmsoft.com/

About

Molecule Simulator

Visualize the 3D structures of molecules using data from PubChem and Protein Data Bank. Explore molecules in various viewing modes and download an extensive library of compounds.

Highlights
  • 3D molecular visualization
  • Space filling mode
  • Ball-and-stick mode
  • Data from PubChem
  • Data from Protein Data Bank
  • Downloadable molecule library
Features
Read full description

This app is a molecular viewer. With the data on PubChem and Protein Data Bank, it can show us 3D structure of molecules. Both space filling mode and ball-and-stick mode. --------------------------------------------- Contains some pre-installed modes. And you can download all kinds of molecules from PubChem or Protein Data Bank.

Screenshots

Noise Generator4 screens
Molecule Simulator4 screens

Verdict

The call

The clearest difference is ads: Molecule Simulator at none against Noise Generator's shown. Molecule Simulator also leads on review sentiment (100% vs 75%) and monetization model (free vs free with in-app purchases). Noise Generator's advantage is update cadence (fortnightly vs every 4 months) and ratings volume (2K vs 26). On price, in-app purchases, device support and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Noise Generator holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: Noise Generator has 2K ratings behind it against 26, so its average is the more settled of the two. Written reviews complicate that: 75% of Noise Generator's written reviews are positive against 100% of Molecule Simulator's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Noise Generator ships an update fortnightly, Molecule Simulator every 4 months. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

Scorecard6 real differences · 4 level
Noise Generator versus Molecule Simulator: the parameters behind the verdict, then further details
ParameterNoise GeneratorMolecule Simulator
PriceFreeFree
Rating4.7 (2K ratings) — better4.4 (26 ratings)
Positive reviews74.7% of reviews100.0% of reviews — better
Number of ratings2K — better26
Update frequencyFortnightly — betterEvery 4 months
AdsYesNo — better
In-app purchasesNoNo
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size38 MB8 MB
Age rating4+4+
DeveloperTMSOFT仕清 刘

Customer experience

Noise Generator

All ratings1,961 ratings
Positive93.4%
Neutral3.2%
Negative3.4%
Written reviews158 reviews
Positive74.7%
Neutral8.9%
Negative16.5%

Molecule Simulator

All ratings22 ratings
Positive86.4%
Neutral0.0%
Negative13.6%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Noise Generator

Reported bugs

3 issues
  • Scrolling issues on iPhone 13 Pro
  • Beeping noise looping in background
  • Stops playing when app is in background

Requested features

5 requests
  • Add green noise option
  • Ability to save custom presets
  • Include a sleep timer
  • Landscape mode support
  • Equalizer/smoother frequency controls

Molecule Simulator

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Noise Generator

No in-app purchases

None

Molecule Simulator

No in-app purchases

Questions

Is Noise Generator free?
Noise Generator is free to download, with no in-app purchases.
Is Molecule Simulator free?
Molecule Simulator is free to download, with no in-app purchases.
Which has better reviews, Noise Generator or Molecule Simulator?
Noise Generator is rated higher. Noise Generator averages 4.7 out of 5 from 2K ratings, while Molecule Simulator averages 4.4 from 26 ratings.
Do Noise Generator or Molecule Simulator have ads?
Noise Generator shows ads; Molecule Simulator does not.
Which is updated more often, Noise Generator or Molecule Simulator?
Noise Generator ships an update fortnightly, and Molecule Simulator every 4 months. Most recently, Noise Generator was updated on October 21, 2026 and Molecule Simulator on October 24, 2026.

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