Fluids & Particle Simulation vs Internal Waves
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fluids & Particle Simulation
Create mesmerizing, psychedelic fluid art with your fingertips. This app offers a calming and creative outlet to reduce stress and channel negative emotions into beautiful, flowing patterns. Enjoy a unique ASMR experience with sound-reactive visuals and customizable parameters.
- Interactive fluid art simulation
- Sound-reactive fluids
- Dozens of customizable parameters
- Autopilot mode
- Gyrosensor and haptic feedback integration
- Real-time sound synthesis
- Video recording and screenshot functionality
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Are you stressed and agitated? Do you want to channel your negative energies into something soulful and creatively free till you feel calm? The Fluids and Sounds app can help you - create satisfying, trippy and psychedelic art with your fingertips. This app helps you to reduce stress and calm down. Now you can touch on your screen to simulate colorful and luminescent fluids that flow with your touch movements. Create extraordinary patterns with single touch or multiple touches on the screen and delve deeper into a world of creative fascination and magical freedom till you feel the connection to our universe. --- Features of Fluids and Sounds --- - Wonderful and easy fluid art simulation - Sound reactive fluids (synchronize to your favorite music) - Dozens of parameters to play around with (color, bloom, sunrays, resolution, force and more) - Autopilot included. Let the fluids flow without interacting with the app. You also could stream this to a bigger screen using AirPlay. Please note: Autopilot is not generating sounds. - Gyrosensor, haptic feedback and force touch are integrated (if you want to use them) - Realtime sound synthesis for meditating music - Take screenshots and share them with anyone you like - Record videos of your fluids (please note: Videos are not including the fluid sounds, only the background music, also video recording excludes the UI, so you'll only record what matters - your art) - Save and load your favorite settings using presets --- Feel Free, Calm and Relaxed --- Art is a form of expression and expression helps in catharsis of inexplicable things we feel every day. If you think you suck at art or expression, this app offers you a safe, easy and creative outlet to channel your thoughts into wonderful art impressions that disappear intermittently. Allow yourself to come down and play around with Fluids & Shapes for some minutes to make beautiful expressions on your device’s screen. --- Seek Awareness and Peace --- You feel like the world is too overwhelming and you need to get a bit of awareness? Protect your peace from getting drowned in a pool of negative emotions such as stress, anxiety, agitation, depression etc. Seek awareness and peace the minute you open this app and make the most of your free time with this free, amazing app. --- Create Wonderful Fluid Art Impressions --- Use your fingertips to create wonderful forms and shapes on your device. While you do so, you can listen to relaxing music which is generated in realtime, depending on your input. Get in tune with the relaxing art and music as you make beautiful patterns on your screen. Customize the intensity, color dispersion, vortex index, music effects, waves and other items from the menu to enjoy a more personalized fluid art meditation and relaxation. Are you ready to feel the satisfaction of creative freedom and its impact on your mental wellbeing? The new fluid art meditation and stimulation app is here for you. Enjoy breathtaking art patterns and soulful music till you feel calm and relaxed. Download and use Fluids and Sounds today! Hope you'll enjoy, because we believe you deserve to feel calm and relaxed! Do you have ideas for new features or improvements? You are not satisfied with this app? Feel free to send me a message at info@mkgames.org Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Internal Waves
Create interactive particle art that responds to touch and music. This mindfulness experience offers a calming way to express yourself with light and motion, perfect for relaxation or creative exploration. Features AR mode for painting in your real-world space.
- Interactive particle art creation
- Music-reactive visuals
- Augmented Reality (AR) mode
- Multi-touch drawing
- Customizable particle effects
- Mindfulness and relaxation focus
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Discover calm, creativity, and connection through interactive particle art. Internal Waves – Particle Flow is a mindfulness experience that lets you draw, play, and express yourself with light and motion. Whether you're relaxing before bed or just need a moment to reset, touch the screen and watch beautiful, fluid particles respond to your fingers — or to your music. Features: Draw with your fingers using flowing, glowing particle trails Visuals that react to music — yours or built-in tracks AR mode (on supported devices) to paint with light in your real-world space Supports up to 10-finger multi-touch drawing Add motion drift, color variation, and more to customize your vibe No goals. No pressure. Just motion, sound, and light — designed to help you breathe, explore, and reset. Great For: Mindfulness and meditation Visual stimulation and relaxation Music lovers and visual artists Late-night winding down Just vibing out when you need a break Tap in and feel the flow. Internal Waves – Particle Flow is more than an app — it's a state of mind. App Store Connect and the Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: Fluids & Particle Simulation at 90% against Internal Waves's 0%. Fluids & Particle Simulation also leads on ads (none vs shown). Internal Waves's advantage is update cadence (every 10 days vs monthly). On price, in-app purchases, monetization model 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
Both are free to download. Fluids & Particle Simulation sells 8 in-app purchases, starting at $2.99 per 7 days and Internal Waves sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
Fluids & Particle Simulation ships an update monthly, Internal Waves every 10 days. The most recent releases landed on August 16, 2026 and June 11, 2026 respectively.
| Parameter | Fluids & Particle Simulation | Internal Waves |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (770 ratings) — better | — |
| Positive reviews | 89.6% of reviews — better | 0.0% of reviews |
| Number of ratings | 770 — better | — |
| Update frequency | Monthly | Every 10 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 189 MB | 133 MB |
| Age rating | 4+ | 4+ |
| Developer | ZipoApps | Riley McKinnon |
Customer experience
Fluids & Particle Simulation
Internal Waves
Bugs and requests
Fluids & Particle Simulation
Reported bugs
2 issues- Microphone input not working as expected
- Difficulty resetting or restoring default settings
Requested features
4 requests- Ability to sync visuals with external audio/music
- More preset options and visual effects
- Improved UI/UX for settings and controls
- Support for casting to external displays
Internal Waves
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Fluids & Particle Simulation
- Unlock all features3 Days trial$2.997 Days
- Unlock all | monthly premium$5.991 Month
- Fluids PRO$17.991 Year
- Unlock all Presets (iOS)$1.99
- Unlock all Presets (OS X Mac)$2.99
- Unlock all features$14.99
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- Psychedelic magic (OS X Mac)$24.99
- Psychedelic magic (iOS)$44.99
Internal Waves
- Particle Flow Premium–Monthly$2.991 Month
- Particle Flow Premium – Yearly3 Days trial$9.991 Year






