RHEO: Paint With Light

TL;DR

Thorsten Meyer AI has detailed RHEO, a forthcoming app that lets users create reactive streams of glowing color with touch, pinch and motion-based inputs. The product page says it will support iPhone, iPad and Apple Vision Pro, but availability, final pricing and some features may still change.

Thorsten Meyer AI has detailed RHEO: Paint With Light, a forthcoming creative app that turns touch and gesture inputs into reactive liquid-light visuals across iPhone, iPad and Apple Vision Pro, positioning it as a calm, low-friction alternative to more complex creative software.

The product spotlight says RHEO is built around a simple interaction model: users touch the screen, drag, flick or pinch, and the app generates glowing fluid color that blooms, swirls and slowly settles. According to the source material, the app is designed so users can understand the experience within about 30 seconds.

Confirmed details from the product page include planned support for iPhone, iPad and Apple Vision Pro, full localization in English and German, local operation without an account, and respect for Reduce Motion settings. The page also says RHEO includes a photosensitivity notice, a relevant safety caveat for an app built around light, bloom and motion effects.

The spotlight lists a planned $3.99 universal purchase, with no subscription, ads or in-app purchases. That pricing is attributed to the product page, which also cautions that App Store pricing varies by region and that described features, performance figures, pricing and availability may change before release.

At a glance
announcementWhen: announced in a 2026 Built in Public spo…
The developmentThorsten Meyer AI has published a Built in Public spotlight detailing RHEO, a forthcoming light-painting app for iPhone, iPad and Apple Vision Pro.
Built in Public · Spotlight · RHEO ThorstenMeyerAI.com · the operator portfolio
RHEO · fluid lab · iPhone · iPad · Apple Vision Pro

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.

01 Gorgeous by default · no skill required

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.

02 The whole pitch is the first thirty seconds

“You touch it, it glows, and you understand the app completely.

Breathe mode

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.

On Apple Vision Pro
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iPad digital painting app

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iPhone light 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.

Stage one · The Veil
A canvas wrapped around you
A tall, curved field of living light. The color flows exactly where you look — glance and pinch to paint.
Stage two · Room mode
You stand inside the fluid
The window and canvas disappear; the liquid spills into your real room. You’re no longer looking at a fluid.
Verified on device at a steady  88–90 fps · first tester’s word: “fluid.”
Endless variety
No two sessions are the same.
  • 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.
Made with care
Kind to your eyes and attention.
  • 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.
One purchase · every device
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light painting app for iPhone

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Apple Vision Pro creative software

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A calm, beautiful thing you own.

$3.99

A single universal purchase. Buy it once and it’s yours on every device — no subscription, no ads, no in-app traps.

iPhoneiPadApple Vision Pro

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.

ThorstenMeyerAI.com · Built in Public · Spotlight · RHEO · © 2026 Thorsten Meyer
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A Simpler Creative Entry Point

RHEO matters because it points to a different approach to consumer creative software: less emphasis on tool mastery and more emphasis on immediate, polished output. The app’s stated promise is that users do not need drawing skill, setup time or a complex interface to create something that looks finished.

For readers following spatial computing, the Apple Vision Pro version is the most distinctive part of the announcement. The source material says RHEO will include a curved canvas called The Veil and a Room mode in which liquid color appears to fill the user’s real room. If delivered as described, that would make RHEO less like a conventional painting app and more like a small ambient spatial experience.

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interactive art app for iPad

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Built Around Calm Interaction

The product page frames RHEO as a deliberately small app with no feed, no score and no streak system. Its stated design goal is to give users a short, tactile visual experience rather than a productivity workflow or social creative platform.

Several features support that positioning. The page describes a Breathe mode, where the fluid swells and eases in rhythm, plus an ambient score and subtle haptics that respond to movement. Because the source material presents these as product features rather than independently verified health outcomes, they should be understood as supportive design choices, not medical or therapeutic claims.

The spotlight also says RHEO will offer curated presets, hidden moods and shareable seeds that let another user open the same fluid state. Those details suggest the app is being designed around repeatable visual sessions while keeping the interface minimal.

“You touch it, it glows, and you understand the app completely.”

— RHEO product spotlight

Release Details Still Pending

Several details remain unsettled. The source material describes RHEO as a forthcoming app, but it does not provide a confirmed release date, App Store listing link or launch territory list. It is also not yet clear whether every feature described in the spotlight will be present at release.

The Apple Vision Pro performance claim is also attributed to the product page, which says the app was verified on device at a steady 88-90 fps. That figure has not been independently tested here, and the source itself says on-device performance can vary by hardware.

App Store Launch To Watch

The next milestone is a confirmed App Store release or public availability update for RHEO. Readers should watch for final device compatibility, regional pricing, any changes to the planned universal purchase, and whether the Apple Vision Pro modes ship as described.

Once available, the main questions will be whether the app’s simple interaction model holds up beyond a short first session and whether its local, no-account design remains part of the released product.

Key Questions

What is RHEO: Paint With Light?

RHEO is a forthcoming creative app from Thorsten Meyer AI that lets users paint with reactive, glowing fluid visuals using touch, flick and pinch gestures.

Which devices will RHEO support?

The product spotlight says RHEO is planned for iPhone, iPad and Apple Vision Pro. Final compatibility should be checked when the app appears on the App Store.

How much will RHEO cost?

The source material lists a planned $3.99 universal purchase with no subscription, ads or in-app purchases. It also says pricing may vary by region and may change.

Does RHEO make wellness claims?

The source describes RHEO as calm and includes a Breathe mode, but the material does not establish medical or therapeutic effects. Users with photosensitivity or motion sensitivity should follow the app’s safety notice and device accessibility settings.

Is RHEO available now?

The provided source calls RHEO a forthcoming app. A confirmed release date and live App Store availability were not included in the material.

Source: Thorsten Meyer AI

Wellness content on this site is informational and not a substitute for professional medical guidance.
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