SkyEngine vs Fluid Art
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
SkyEngine
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SkyEngine is a realistic night sky viewer that transforms your phone into a portable planetarium. Whether you're camping under the stars or winding down for sleep, SkyEngine brings the beauty of the night sky to your fingertips. Point your phone at the sky and see exactly what's above you. SkyEngine uses your GPS location and compass to show an accurate, real-time view of stars, planets, and constellations from wherever you are. FEATURES Realistic Sky Rendering โ Thousands of real stars rendered with accurate positions and brightness โ Planets including the Moon, visible in their true locations โ The Milky Way stretching across your sky โ Realistic sky colors from sunset through deep night Compass Mode โ Point your phone at the sky and the view follows โ Labels appear on stars and planets as you look around โ Constellation lines guide you through the night sky Ambient Sounds & Sleep Mode โ Campfire crackling, crickets, wind, water, and calming drone music โ Mix and match sounds to create your perfect atmosphere โ Sleep timer with gentle fade-out (15, 30, 60, or 90 minutes) Visual Effects โ Shooting stars streak across the sky at random โ Aurora Borealis shimmering on the horizon โ Warm campfire glow from below Customization โ Adjust light pollution (Bortle 1โ9) to match your real sky โ Search any city worldwide to see its sky โ Time controls: jump forward, backward, or animate the sky at any speed โ Toggle constellations, labels, deep sky objects, and grid overlay Perfect for camping trips, bedtime relaxation, astronomy learning, or simply enjoying the beauty of the night sky from anywhere.
Fluid Art
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Touch the screen and paint with living liquid light. Fluid Art turns your fingertips into brushes of glowing paint. Swirls, waves, flames and oil โ six worlds of real physics respond to every touch, every drag, even your music. ASMR touch sounds turn each gesture into a soft, satisfying texture. SIX PHYSICS WORLDS โข Fluid โ classic swirling ink: vortices, curls and glowing trails โข Ripple โ drops become expanding rings; drag your finger for a wake through refracted colors โข Oil โ thick glossy paint that sags, pools and shimmers; tilt and shake your device to stir it โข Fire โ heat rises into living flame with flicker and sparks; drag to paint with a torch โข Orbit โ gravity wells wind matter into spirals; hold a finger and pull the streams toward you โข Slime โ thick, deeply coloured goo that swells, settles and lags behind your finger like soft putty SEVEN COLOR MOODS Classic, Neon, Ink, Calm and Storm โ plus Aurora and Blossom with Fluid Art Pro. Each mood has its own palette, glow and feel. Your choice applies live, right behind the settings panel. PAINT WITH SOUND Turn on Sound mode and the canvas paints itself to your music or voice. Audio is analyzed on your device in real time โ nothing is ever recorded or stored. ASMR TOUCH SOUNDS Tap the headphones and the canvas answers your fingers โ and every world answers in its own voice: water swirls and drips in Fluid, drops plink across the film in Ripple, Oil gurgles thick and low, Fire hisses and crackles, Orbit breathes airy swells, Slime squishes and sticks. Everything is synthesized live โ never the same twice โ and it mixes with your music instead of interrupting it. RECORD AND SHARE Capture the canvas as a smooth video and share it straight from the app โ your flowing paintings, ready for your feed or a friend. Free clips run 5 seconds with a Fluid Art watermark; with Pro, record as long as you like, with no watermark. SESSION TIMER (PRO) Set a session of 3, 5, 10, 15 or 30 minutes โ for meditation, breathing exercises or a focused break. A gentle chime ends the session, and the painting stays. FLUID ART PRO One simple, one-time unlock adds seven new worlds โ Coral (a living reef grows wherever you touch), Marble (suminagashi ink folding in laminar swirls), Sand (a living desert that builds itself, storm by storm), Watercolor (wet paint bleeding into soft paper), Kaleidoscope (perfect mirrored mandalas from every touch), Frost (living ice crystals that grow, melt and glisten) and Smiley (a neon face of glowing rings that ripples under your finger and springs back) โ plus the Aurora and Blossom color palettes, the session timer and unlimited video recording with no watermark. Purchased once, yours forever, on every device with your account. Restore anytime from the unlock dialog. SHUFFLE Tap the shuffle button and the canvas reinvents itself: every half minute or so a new world and a new palette take over, like a channel of living paintings. IT LIVES ON ITS OWN Leave the app open and Fluid Art keeps painting in ambient mode โ a living lava lamp for your desk or nightstand. MULTITOUCH Every finger is its own brush. Paint with a friend. CALM BY DESIGN No ads. No accounts. No scores or pressure. Works fully offline. Everything you need to start is free โ six worlds, five color moods, sound and ASMR modes, and 5-second video clips. The optional Pro unlock is a single one-time purchase: no subscriptions, ever. Fluid Art collects no personal data. The optional Sound mode uses the microphone only to measure loudness in the moment โ audio never leaves your device.
Screenshots
Verdict
The clearest difference is in-app purchases: SkyEngine at none against Fluid Art's 1. On price, update cadence, ads and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Fluid Art sells 1 one-off in-app purchase. SkyEngine asks for nothing beyond the download.
SkyEngine ships an update every 8 days, Fluid Art weekly. The most recent releases landed on November 9, 2026 and November 10, 2026 respectively.
| Parameter | SkyEngine | Fluid Art |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 8 days | Weekly โ better |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone | iPhone, iPad โ better |
| Requires iOS | 17.6 | 16.3 โ better |
| Further details โ not scored | ||
| Size | 23 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | ZIRUI LYU | Dmitry Shurco |
In-app purchases
SkyEngine
No in-app purchases
Fluid Art
- Fluid Art Pro$2.99
Questions
Is SkyEngine free?
Is Fluid Art free?
Do SkyEngine or Fluid Art have ads?
Which is updated more often, SkyEngine or Fluid Art?
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