TL;DR
Thorsten Meyer AI has detailed RHEO, a forthcoming app that lets users paint with touch-reactive liquid light on iPhone, iPad and Apple Vision Pro. The product page says it will run locally, require no account, support English and German, and sell as a $3.99 universal purchase, though availability and final pricing may change.
Thorsten Meyer AI has detailed RHEO: Paint With Light, a forthcoming app that turns touch gestures into glowing fluid color on iPhone, iPad and Apple Vision Pro, positioning it as a simple creative tool built around calm interaction rather than menus, feeds or scores.
The product spotlight describes RHEO as a one-touch visual app in which liquid light blooms, swirls and settles as the user moves a finger, pinches or flicks across the screen. According to the source material, the app is designed so users can understand the core experience within about 30 seconds.
Thorsten Meyer AI says RHEO will include curated presets, hidden moods, shareable seeds that can reproduce the same fluid session for another user, and an ambient score with subtle haptics that respond to movement. The company also describes a Breathe mode in which the fluid expands and eases with a breathing rhythm.
For Apple Vision Pro, the spotlight says RHEO will support a curved light canvas controlled by gaze and pinch, plus a Room mode that lets the color effect appear in the user’s real room. The product page states that the app has been verified on device at 88 to 90 frames per second, but says performance can vary by hardware.
Paint with light.
A single fingertip becomes a river of glowing color. Touch the screen and liquid light blooms, swirls, and slowly settles — a calmer kind of beautiful, in the palm of your hand.
You can’t make an ugly one.
Most creative apps ask you to learn them first. RHEO asks nothing — every stroke trails stardust, catches bloom, and scatters light like sun through water.
Effortless beauty
Drag slowly for silk, flick fast for a burst, pinch the world into a vortex. Whatever you do, it looks like art.
Minutes that slow you down
No feed, no score, no streak to protect. Just a fluid that reacts to you and settles gently back to calm.
It responds to you
A warm ambient score and subtle haptics rise and fall with how much you move — sight, sound, and touch in sync.
“You touch it, it glows, and you understand the app completely.“
The fluid breathes with you.
The whole fluid swells on the inhale and eases on the exhale — gravity itself leans with the rhythm. It’s box-breathing you can actually see, pacing you without a single number on screen.
iPad digital painting app
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The color leaves the screen.
Paint a curved canvas of living light with a glance and a pinch — then turn on Room mode and the liquid spills out to wash your real room in shifting color.
- Curated presets set an instant tone, from deep calm to electric.
- Hidden moods quietly unlock the more you explore.
- Shareable seeds — send a link and a friend opens the exact same fluid, down to the last shimmer.
- Gentle by design. A photosensitivity notice up front, and full respect for Reduce Motion.
- Yours and private. Runs locally — no account, nothing to sign up for, nothing watching.
- In your language. Fully localized in English and German.
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A calm, beautiful thing you own.
A single universal purchase. Buy it once and it’s yours on every device — no subscription, no ads, no in-app traps.
Independent commentary, produced with AI assistance under human editorial oversight. The views are the author’s own and may change. This describes a product’s design and stated features — not business, financial, legal, or technical advice. RHEO is a forthcoming app; described features, performance figures, pricing, and availability are stated by the product and may change; on-device performance varies by hardware. A photosensitivity notice is included in the app; exercise appropriate caution if you are photosensitive. Pricing is set in the App Store and varies by region. Names are trademarks of their respective owners; mention does not imply endorsement.

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A Low-Friction Creative Tool
RHEO matters because it reflects a growing market for small, focused creative apps that offer immediate visual feedback without asking users to learn a complex toolset. If the final product matches the described design, it would sit closer to a calming interactive instrument than a traditional drawing or painting app.
The Apple Vision Pro features also point to a broader question for spatial computing software: whether immersive apps can succeed by being simple, sensory and low-pressure rather than productivity-heavy. The source frames RHEO as a local, private, paid app with no account, no ads and no subscription, a model that may appeal to users tired of engagement-driven software.
AR light painting for Apple Vision Pro
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Built-In-Public Product Spotlight
The announcement comes through a Built in Public spotlight on ThorstenMeyerAI.com, which presents RHEO as part of an operator portfolio that also includes more technical work such as decision engines and defense ISR platforms. The source uses RHEO to argue that small, calm products can still deserve careful engineering.
The page describes RHEO as a forthcoming app for iPhone, iPad and Apple Vision Pro. It says the app will be localized in English and German, include a photosensitivity notice, respect Reduce Motion settings and run locally without sign-up. The stated price is $3.99 as a single universal purchase, though the page also cautions that App Store pricing varies by region and may change.
“You touch it, it glows, and you understand the app completely.”
— Thorsten Meyer AI product spotlight
Release Details Still Missing
Several key details are still not confirmed. The source material does not give a release date, App Store listing, final device requirements or a full list of supported Apple Vision Pro features at launch. It is also not clear whether every mode described in the spotlight will ship on day one.
The stated 88 to 90 fps performance figure is attributed to the product page, not an independent benchmark. Pricing is also subject to the App Store and regional variation, and the spotlight says availability, performance and features may change before release.
App Store Launch To Watch
The next milestone is a confirmed App Store release or public test window for RHEO. Readers will be watching for the final price, supported devices, launch features, privacy disclosures and whether the Vision Pro Room mode ships as described.
Until then, the announcement establishes RHEO’s intended direction: a paid, local, low-distraction creative app built around touch, motion, light and calm feedback.
Key Questions
What is RHEO: Paint With Light?
RHEO is a forthcoming app from Thorsten Meyer AI that lets users create reactive liquid-light visuals through touch, pinch and motion-based gestures.
Which devices will RHEO support?
The product spotlight says RHEO is planned for iPhone, iPad and Apple Vision Pro.
How much will RHEO cost?
The source lists RHEO as a $3.99 universal purchase, but says App Store pricing varies by region and may change before release.
Does RHEO require an account?
According to the product spotlight, RHEO will run locally with no account, no sign-up, no ads and no subscription.
What is still unconfirmed about RHEO?
The release date, final App Store availability, full launch feature set and independent performance results have not been confirmed in the source material.
Source: Thorsten Meyer AI