Comparison

Gravity vs Rainy Relax 4K

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

Head to head
About

Gravity

Explore a unique blend of music, art, and science with this interactive experience. Guide flowing particles with multiple fingers to create stunning visual animations. Save your creations and experiment with various settings for a relaxing and artistic journey.

Highlights
  • Multitouch particle control
  • 10 distinct finger-based animations
  • Thousands of particles at 60 FPS
  • Customizable colors and animation settings
  • Save and load presets
  • Multiple play modes
  • Save snapshots to photo library
Features
Read full description

Free for a limited time!!! Gravity combines music, art and science in one relaxing experience. Use all your fingers to guide the star flow. You can create 10 different animations depending on the number of fingers touching the screen: 1 - Rocket, 2 - Sparkle, 3 - Energy flow, 4 - Atomic, 5 - 3D freeze, 6 - Circularium, 7 - Fish, 8 - Vortex, 9 - Lasers, 10 - Lightning. Unleash your creativity and create unique masterpieces! Features: * Multitouch (upto 10 touch points iPad, 5 on iPhone) * Thousands of particles animated at 60 frames per second * Changing/manual colors * Play/pause the animation * Save snapshots to your Photo Library * Multiple animation options (ex: speed, tail, size, opacity, etc.) * Ability to save and load option presets * Multiple play modes: default, drawing, tranquility and user defined * No ads

About

Rainy Relax 4K

Features
Read full description

Rainy Relax 4K More than 30 different rains and storms Relax your eyes with this fantastic Rainy Relax 4K! Do you want to put rain and storms in your house? Or maybe set it as a wallpaper for your phone, iPad or Apple TV? Now with Rainy Relax 4K it is possible. Download this application and enjoy with your partner or friends the relaxing images in 4K or HD of rainy days for Apple TV, iPhone or iPad. Main features: Playback • 4K and HD videos • Endless loop playback • Shuffle mode • Background playback while using other apps • Sleep timer: video automatically stops when you fall asleep • Playback speed (0.25x to 2x) Large Screen • Compatible with Apple TV via AirPlay • Compatible with Chromecast for HD viewing on your TV Customization • 5 visual effects: snow, powder snow, rain, sparkles, and confetti • 4 display layouts: list, grid, single circle, or double circle • Bookmark your favorite videos for quick access • Dark mode support • Clock: display the clock on screen (digital/analog) • Appointments: display text on screen • Calendar: display upcoming calendar events Content • Over 30 different content options • New content added regularly Privacy Policy: http://kissappsl.com/pages/privacy-policy/ Terms of Use (EULA): http://kissappsl.com/terms-of-use/

Screenshots

Gravity4 screens
Rainy Relax 4K3 screens

Verdict

The call

The clearest difference is in-app purchases: Gravity at none against Rainy Relax 4K's 2. Gravity also leads on iOS requirement (8.0 vs 15.0). Rainy Relax 4K's advantage is update cadence (every 3 months vs every 8 months) and price ($0.99 vs $1.99). On 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

Gravity costs $1.99 and Rainy Relax 4K $0.99 up front. Rainy Relax 4K sells 2 in-app purchases, starting at $0.99 per month. Gravity asks for nothing beyond the download.

UpkeepUpdate frequency

Gravity ships an update every 8 months, Rainy Relax 4K every 3 months. The most recent releases landed on November 10, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 6 level
Gravity versus Rainy Relax 4K: the parameters behind the verdict, then further details
ParameterGravityRainy Relax 4K
Price$1.99$0.99 — better
Rating4.7 (50 ratings) — better—
Positive reviews87.9% of reviews—
Number of ratings50 — better—
Update frequencyEvery 8 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod, Apple TViPhone, iPad, iPod, Apple TV
Requires iOS8.0 — better15.0
Further details — not scored
Size39 MB59 MB
Age rating4+4+
DeveloperKfirapps LimitedKISSAPP, S.L.

Bugs and requests

Gravity

Reported bugs

8 issues
  • App crashes as soon as it opens
  • No sound
  • Full screen ads in free version
  • Ads in paid version
  • App control doc keeps hiding
Show 3 more
  • Patterns freeze or close down with more than 4 fingers
  • Screen capture not working (black screen)
  • App hangs/freezes iPad Mini

Requested features

9 requests
  • Support for new iPhone screens
  • Option to record performances
  • More music selections or ability to generate original music
  • Ability to use as wallpaper
  • More particle options (count, size)
Show 4 more
  • Easier color selection (color wheel)
  • Ability to customize background color
  • More songs in rotation
  • Ability to have specific particle counts (e.g., 2 particles)

Rainy Relax 4K

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Gravity

No in-app purchases

2 purchases

Rainy Relax 4K

Subscriptions2
  • Rainy Relax Full Version$0.991 Month
  • Rainy Relax Full Version$9.991 Year

Questions

Is Gravity free?
Gravity costs $1.99, with no in-app purchases.
Is Rainy Relax 4K free?
Rainy Relax 4K costs $0.99, and also offers in-app purchases.
Do Gravity or Rainy Relax 4K have ads?
Neither Gravity nor Rainy Relax 4K shows ads.
Which is updated more often, Gravity or Rainy Relax 4K?
Gravity ships an update every 8 months, and Rainy Relax 4K every 3 months. Most recently, Gravity was updated on November 10, 2026 and Rainy Relax 4K on October 30, 2026.

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