TL;DR

Thorsten Meyer AI has detailed RHEO, a forthcoming app that lets users paint with animated liquid light on iPhone, iPad and Apple Vision Pro. The source says it is planned as a $3.99 universal purchase with no account, ads or in-app purchases, but release timing, final device support and performance still need confirmation.

Thorsten Meyer AI has detailed RHEO, a forthcoming light-painting app for iPhone, iPad and Apple Vision Pro, positioning the product as a calm, touch-first creative tool rather than a full editing suite. The announcement matters because it outlines a one-purchase, no-account app aimed at casual creation and spatial use, while several details remain product-stated and subject to change.

The confirmed development is the product disclosure: Thorsten Meyer AI is presenting RHEO as an app that turns touch gestures into flowing, glowing color. The source describes the core interaction as immediate, with users able to drag, flick and pinch to shape animated fluid light.

According to the spotlight, RHEO includes Breathe mode, where the fluid expands and eases with a breathing rhythm, plus sound and haptics that respond to movement. For Apple Vision Pro, the source says the app will support a curved light canvas and a Room mode that makes the liquid effect appear to fill the user’s physical space.

The product page states RHEO is planned as a $3.99 universal purchase across iPhone, iPad and Apple Vision Pro, with no subscription, no ads and no in-app purchases. It also says the app runs locally, requires no account, supports English and German, includes a photosensitivity notice and respects Reduce Motion.

At a glance
announcementWhen: Forthcoming as of the 2026 Built in Pub…
The developmentThorsten Meyer AI has published a Built in Public spotlight outlining RHEO, a forthcoming touch-based light-painting app for Apple devices.
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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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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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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Calm Creation As Product Strategy

The news matters because RHEO is being framed as anti-feed software: no account, no score, no streak and no social loop. For readers who use creative apps for short breaks, the pitch is a low-friction tool that treats touch, sound and haptics as the product rather than setup screens, asset libraries or posting tools.

It also shows how spatial computing is reaching smaller creative apps, not only games, workplace tools or enterprise demos. The Vision Pro plan, if it reaches users as described, would move light painting from a flat-screen interaction into a room-scale visual effect.

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A Built In Public Preview

RHEO sits in Thorsten Meyer AI’s operator portfolio, which the source says also includes defense ISR platforms and decision engines. The contrast is part of the product framing: a small, calm app built with care, though the spotlight gives no technical architecture or release date.

The app is described as fully localized in English and German and designed with a photosensitivity notice and Reduce Motion support. The source also says no account is required and that the app runs locally, but it does not provide independent privacy testing or App Store review status.

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

— Thorsten Meyer AI product spotlight

Release Details Still Unconfirmed

Release timing is not specified in the source material, and the app is explicitly described as forthcoming. The spotlight says features, performance figures, pricing and availability may change, and on-device performance varies by hardware.

It is also not yet clear which devices will be supported at launch, what the minimum OS requirements will be, whether shareable seeds will ship on day one, or how Room mode will behave across different Vision Pro environments.

App Store Details To Watch

The next milestone is likely an App Store listing or release notice confirming launch date, supported hardware, regional pricing and final feature set. Until then, readers should treat RHEO as a developer announcement based on product material rather than a released app review.

Key Questions

What is RHEO?

RHEO is a forthcoming light-painting app from Thorsten Meyer AI that turns touch gestures into animated liquid color on Apple devices.

Is RHEO available now?

The source describes RHEO as forthcoming. No confirmed release date or App Store link is provided in the supplied material.

Which devices are planned?

The product spotlight names iPhone, iPad and Apple Vision Pro. Final hardware and OS support still need App Store confirmation.

How much will RHEO cost?

The source says RHEO is planned as a $3.99 universal purchase with no subscription, ads or in-app purchases. Pricing may vary by region.

What remains unverified?

Performance claims, launch timing, supported device list and final Vision Pro features remain product-stated until release or independent testing.

Source: Thorsten Meyer AI

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