Comparison

Gravitarium vs Optical illusion hypnosis

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

Head to head
About

Gravitarium

Explore a world of dynamic particle animations controlled by your touch. Create stunning visual effects with up to 10 interactive formations and customize colors, animations, and sounds. Save, share, and even use your creations as parallax-optimized wallpapers.

Highlights
  • Multitouch particle control
  • 10 interactive formations
  • Customizable animations and colors
  • Save, edit, and share creations
  • Parallax wallpaper optimization
  • Voice and music reaction
  • Multiplayer drawing/flow
Features
Read full description

"Feel thousands of particles at your fingertips" ~ An extraordinary journey into a world of particle animation You'll get all of the original Gravitarium2 with 5 tracks included. Additional Gravitarium Plus features are locked, except for the Aviary image editor! Guide the particle flow with your fingers for up to 10 different formations (subject to the number of fingers you have available ;-) 1 - Rocket, 2 - Sparkle, 3 - Energy flow, 4 - Atomic, 5 - 3D freeze, 6 - Circularium, 7 - Fish, 8 - Vortex, 9 - Lasers, 10 - Lightning. Gravitarium Features: ► Multitouch or Sticky(+) touch (10 on the iPad, 5 on the iPhone) ► Manual or Dancing(+) particle flow animated at 60fps ► Changing or Manual color options ► Lines(+) or Specks animations with a Drawing switch ► Play or Pause (Stop and go) animation option ► Save, Edit and Share your creations ► Wallpaperizor to make your photo library images parallax optimized ► Original or iTunes(+) soundtracks (includes 5 relaxing tracks by Silent Strike) ► Ability to use the MIC(+) to have the particles react to your voice or background music ► Animation options with the ability to save(+) and load presets ► Multiplayer game(+) or draw/flow with a friend option via the Game Center ► Cross-device play capable: iPad to iPad, iPhone to iPhone, iPhone to iPad…etc. (+) Features specific to the full Gravitarium Plus version

About

Optical illusion hypnosis

Experience a unique blend of visual wonder and mental relaxation with mesmerizing optical illusions. This app offers a calming space to unwind, escape stress, and find creative inspiration through captivating visuals and meditative experiences.

Highlights
  • Mesmerizing visual illusions
  • Relaxation Mode with ambient music
  • Create and share custom illusions
  • Learn the science behind perception
  • Customizable experience with soundtracks and timers
Features
Read full description

Relax your mind through mesmerizing visual illusions. Enter a calming space where reality bends and your thoughts unwind. Discover a unique blend of visual wonder and mental relaxation with our optical illusion app. Designed not just to amaze, but also to soothe, each illusion offers a moment of pause, a gentle escape for your mind. App Highlights: Illusions that calm and captivate – From flowing patterns to visual paradoxes, explore illusions that both stimulate and relax. Relaxation Mode – Pair ambient music with hypnotic visuals for a meditative sensory experience. Create & Share – Design your own illusions and share them with a creative and curious community. Learn the Science – Dive into the psychology behind perception and discover why the brain loves to be fooled. Customize Your Experience – Choose soundtracks, set display timers, and select illusion categories to match your mood. Perfect for moments of stress relief, creative inspiration, or just a break from a busy day. Ideal for lovers of art, psychology, and anyone who enjoys a mindful visual journey. A new way to relax — where the eye sees, and the mind lets go. Download now and turn every moment into a peaceful illusion. Optical Illusions & Relaxing Visuals – See the unseen, feel the unreal.

Screenshots

Gravitarium4 screens
Optical illusion hypnosis4 screens

Verdict

The call

The clearest difference is in-app purchases: Gravitarium at none against Optical illusion hypnosis's 4. Gravitarium also leads on ads (none vs shown) and review sentiment (82% vs 55%). On price, ratings volume and update cadence 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. Optical illusion hypnosis sells 4 in-app purchases, starting at $3.49 per month. Gravitarium asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Gravitarium holds the better App Store score, 4.5 against 4.2. Both are backed by a comparable volume of ratings — 331 and 958 respectively. Written reviews point the same way: 82% of Gravitarium's written reviews are positive against 55% of Optical illusion hypnosis's.

UpkeepUpdate frequency

Gravitarium ships an update every 3 months, Optical illusion hypnosis every 5 months. The most recent releases landed on October 29, 2026 and October 22, 2026 respectively.

Scorecard7 real differences · 3 level
Gravitarium versus Optical illusion hypnosis: the parameters behind the verdict, then further details
ParameterGravitariumOptical illusion hypnosis
PriceFreeFree
Rating4.5 (331 ratings) — better4.2 (958 ratings)
Positive reviews81.8% of reviews — better54.6% of reviews
Number of ratings331958 — better
Update frequencyEvery 3 months — betterEvery 5 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidAd-supported — better
DevicesiPhone, iPad, iPod, Apple TV, Apple Watch — betteriPhone, iPad, iPod
Requires iOS8.0 — better15.0
Further details — not scored
Size46 MB97 MB
Age rating4+4+
DeveloperScep Group LLCAstrologic Games LTDA

Customer experience

Gravitarium

All ratings331 ratings
Positive87.0%
Neutral4.5%
Negative8.5%
Written reviews99 reviews
Positive81.8%
Neutral5.1%
Negative13.1%

Optical illusion hypnosis

All ratings955 ratings
Positive79.9%
Neutral4.4%
Negative15.7%
Written reviews108 reviews
Positive54.6%
Neutral9.3%
Negative36.1%

User reviews

Gravitarium

From 331 App Store ratings

What we love

  • 😌 Highly relaxing and calming experience
  • 🧠 Excellent for ADHD, autism, and sensory processing
  • 🎵 Soothing music and audio design
  • 💰 Free version available with no ads
  • 🎨 Visually satisfying particle effects

Room to improve

  • 💳 Paywall blocks many features
  • 🐛 Occasional lag and glitches
  • 🎵 iTunes music integration doesn't work properly
  • 📱 Display issues on newer devices (iPhone X, XS Max)
  • 🎨 Interface design could be improved

Optical illusion hypnosis

From 958 App Store ratings

What we love

  • 🤩 Hypnotizing effects
  • 🧠 Interesting illusions
  • 👍 App works as intended
  • 🤯 Mind-bending experiences

Room to improve

  • 🤯 Can cause headaches/dizziness
  • 💰 Too many ads
  • 🔴 Stuck on red screen
  • 🤔 Unclear instructions

Bugs and requests

Gravitarium

Reported bugs

8 issues
  • App crashes when playing music
  • iTunes music upload fails despite paid version
  • Game Center login not working
  • Black bars on iPhone XS Max display
  • Option bar doesn't show/retract properly
Show 3 more
  • App Store screen appears blank
  • Occasional lag and performance issues
  • DRM restrictions on music files

Requested features

8 requests
  • Custom music upload functionality
  • Automatic music integration
  • Support for newer screen resolutions
  • iPhone X/XS Max compatibility
  • More free features without paywall
Show 3 more
  • TV app music playback support
  • Brightness/sensitivity adjustment options
  • Regular app updates and improvements

Optical illusion hypnosis

Reported bugs

3 issues
  • App crashes or gets stuck on red screen
  • Ads don't load properly, preventing access to other levels
  • Inconsistent performance across devices

Requested features

4 requests
  • Add more variety of illusions
  • Reduce ads or offer ad-free version
  • Improve performance on older devices
  • Add color/visual customization options

In-app purchases

None

Gravitarium

No in-app purchases

4 purchases

Optical illusion hypnosis

Subscriptions1
  • VIP Access3 Days trial$3.491 Month
One-time3
  • Remove Ads$1.99
  • Extreme FX Pack$1.99
  • Color FX Pack$1.99

Questions

Is Gravitarium free?
Gravitarium is free to download, with no in-app purchases.
Is Optical illusion hypnosis free?
Optical illusion hypnosis is free to download, with in-app purchases available.
Which has better reviews, Gravitarium or Optical illusion hypnosis?
Gravitarium is rated higher. Gravitarium averages 4.5 out of 5 from 331 ratings, while Optical illusion hypnosis averages 4.2 from 958 ratings.
Do Gravitarium or Optical illusion hypnosis have ads?
Optical illusion hypnosis shows ads; Gravitarium does not.
Which is updated more often, Gravitarium or Optical illusion hypnosis?
Gravitarium ships an update every 3 months, and Optical illusion hypnosis every 5 months. Most recently, Gravitarium was updated on October 29, 2026 and Optical illusion hypnosis on October 22, 2026.

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