Comparison

Sleeping Carl on a cloud vs Vortis

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

Head to head
About

Sleeping Carl on a cloud

A calming bedtime companion featuring a character resting on a cloud. Gentle animations and soothing sounds create a peaceful atmosphere for children and parents. The app includes a simple alarm and gradually dims to help settle the room for sleep.

Highlights
  • Calming white-noise companion
  • Gentle animations
  • Soft soundscape
  • Built-in alarm
  • Gradual dimming and sound reduction
  • Interactive character
Features
Read full description

Carl rests peacefully on his cloud, breathing and snoring as he drifts through a quiet night sky. The gentle animation and soft soundscape create a calming white-noise companion for children and parents at bedtime. Move through the scene, tap Carl to wake him, or use the simple built-in alarm. After a period of inactivity, Sleeping Carl gradually dims and lowers the sound to help the room settle into sleep.

About

Vortis

Experience a dynamic fluid art simulation that responds to your touch with vibrant colors and mesmerizing patterns. Explore various visual styles and adjust simulation parameters in real-time for a unique, stress-relieving visual experience.

Highlights
  • Interactive fluid simulation
  • Real-time GPU computation
  • Multiple visual styles (looks)
  • Adjustable simulation parameters
  • Music and camera integration
  • Record and save creations
Features
Read full description

A relaxing fluid simulation you play with your fingers: a pool of color that answers every touch. Draw across it and you pull a band of color through the flow. Tap and a drop bursts open. Rest a finger and a glowing plume rises. Behind it runs a real fluid solver on the GPU, up to a hundred and twenty times a second. No video, no loop: what you see was computed a moment ago and will never come back quite the same. TWENTY LOOKS Ink on water, northern lights, marbled paper, smoke, neon, deep sea. One for every mood — and if you would rather not choose, the dice hands you one. EVERYTHING IS A SLIDER Vorticity, color decay, resolution, pressure: the knobs of the method itself, not a few filters laid over it. The pool keeps painting while you drag them, so you see what you are doing straight away. MORE THAN FINGERS Let the music in the room drive the flow. Use your own photo or the camera as a color source. Paint walls the color has to flow around. And record what came out of it. No goal, no score, no progress. A pool that answers back. Every third roll of the dice plays a short video ad. Vortis Pro is a one-time purchase that unlocks the effects, your own image sources and the solver's own controls — and removes the ads.

Screenshots

Sleeping Carl on a cloud2 screens
Vortis4 screens

Verdict

The call

The clearest difference is in-app purchases: Sleeping Carl on a cloud at none against Vortis's 1. Sleeping Carl on a cloud also leads on ads (none vs shown). Vortis's advantage is update cadence (every 5 days vs every 3 months). On price, 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. Vortis sells 1 one-off in-app purchase. Sleeping Carl on a cloud asks for nothing beyond the download.

UpkeepUpdate frequency

Sleeping Carl on a cloud ships an update every 3 months, Vortis every 5 days. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

Scorecard4 real differences · 6 level
Sleeping Carl on a cloud versus Vortis: the parameters behind the verdict, then further details
ParameterSleeping Carl on a cloudVortis
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews62.1% of reviews—
Number of ratings—1 — better
Update frequencyEvery 3 monthsEvery 5 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size14 MB58 MB
Age rating4+4+
DeveloperTayasui.comInes Golub

Customer experience

Sleeping Carl on a cloud

Written reviews132 reviews
Positive62.1%
Neutral13.6%
Negative24.2%

Vortis

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Sleeping Carl on a cloud

No in-app purchases

1 purchases

Vortis

One-time1
  • Vortis Pro$2.99

Questions

Is Sleeping Carl on a cloud free?
Sleeping Carl on a cloud is free to download, with no in-app purchases.
Is Vortis free?
Vortis is free to download, with in-app purchases available.
Do Sleeping Carl on a cloud or Vortis have ads?
Vortis shows ads; Sleeping Carl on a cloud does not.
Which is updated more often, Sleeping Carl on a cloud or Vortis?
Sleeping Carl on a cloud ships an update every 3 months, and Vortis every 5 days. Most recently, Sleeping Carl on a cloud was updated on November 6, 2026 and Vortis on November 7, 2026.

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