TL;DR

Thorsten Meyer AI has detailed RHEO, a forthcoming light-painting app for iPhone, iPad and Apple Vision Pro. The company describes it as a calm, local-first creative app with no account, ads or subscription, though availability, pricing and performance may still change before release.

Thorsten Meyer AI has detailed RHEO: Paint With Light, a forthcoming creative app for iPhone, iPad and Apple Vision Pro that lets users make glowing fluid visuals with touch, glance and pinch controls. The announcement matters because it positions a small, low-friction art app as part of the company’s broader operator portfolio, with a stated focus on calm interaction, privacy and universal purchase pricing.

The source material describes RHEO as an app built around a single immediate action: touching the screen and watching liquid light bloom, swirl and settle. According to Thorsten Meyer AI, the app is designed so users can understand the experience within about 30 seconds, without toolbars, lessons or a conventional creative workflow.

Confirmed from the product spotlight: RHEO is described as a forthcoming app, not a currently released title in the provided material. The spotlight says it is planned for iPhone, iPad and Apple Vision Pro, with full localization in English and German, a photosensitivity notice, support for Reduce Motion, and a local-first model with no account requirement.

The company also states that RHEO will be sold as one universal purchase at $3.99, with no subscription, ads or in-app purchases. The same source cautions that features, performance figures, pricing and availability are product-stated details that may change, and that App Store pricing can vary by region.

At a glance
announcementWhen: forthcoming; described in a 2026 Built…
The developmentThorsten Meyer AI published a Built in Public spotlight describing RHEO, a forthcoming app that turns touch and spatial input into glowing fluid light.
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
Amazon

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.

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
Amazon

light painting app for iPhone

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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 Smaller Bet on Calm Software

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A Smaller Bet on Calm Software

RHEO is framed as more than a simple visual toy. Thorsten Meyer AI presents the app as a test of whether software can feel complete immediately, giving users a creative result without demanding skill, setup or prolonged attention. That is the central product claim: the app’s value is meant to come from ease, sensory feedback and restraint, rather than feature volume.

For readers tracking creative software, the announcement points to a different lane from productivity-heavy art tools. RHEO’s stated design omits a feed, score, streak or account system, which makes the product pitch closer to a private visual instrument than a social or creator-platform app. Its planned support for Apple Vision Pro also makes it a small but specific example of how spatial computing apps may use room-scale color and ambient interaction.

How RHEO Is Positioned

The Built in Public spotlight places RHEO inside the Thorsten Meyer AI operator portfolio, alongside larger technical projects described in the source as defense ISR platforms and decision engines. The contrast is part of the positioning: the company argues that a deliberately simple app can still deserve careful engineering when the goal is to make every interaction feel visually pleasing.

The feature list centers on a few interaction modes. On touch devices, users are said to drag for smoother motion, flick for bursts and pinch to form a vortex. On Apple Vision Pro, the spotlight describes a curved canvas controlled by glance and pinch, plus a Room mode in which the liquid-light effect appears to extend into the user’s physical room.

“You touch it, it glows”

— Thorsten Meyer AI product spotlight

Release Details Still Pending

Several key details remain unconfirmed in the provided material. Thorsten Meyer AI calls RHEO forthcoming, but the source does not provide a public release date, App Store listing, final device requirements or a full technical specification. It is also not yet clear whether every described feature will ship at launch.

The performance claim is also attributed to the product source. The spotlight says the Vision Pro experience was verified on device at 88–90 fps, but it also warns that on-device performance varies by hardware. Readers should treat pricing, availability and performance as current product-stated targets until the app is released or listed publicly.

Next Milestone Is Release

The next step is a public release or App Store listing that confirms launch timing, supported devices, regional pricing and final feature availability. Until then, RHEO remains a forthcoming product described through Thorsten Meyer AI’s own Built in Public material.

Once available, the main questions will be whether the app’s local-first privacy model, accessibility support, Vision Pro mode and universal purchase structure match the published description, and how consistently the fluid-light experience performs across iPhone, iPad and Apple Vision Pro.

Key Questions

What is RHEO: Paint With Light?

RHEO is described by Thorsten Meyer AI as a forthcoming app that lets users create glowing, fluid light visuals through touch and, on Apple Vision Pro, glance-and-pinch interaction.

Which devices will RHEO support?

The product spotlight says RHEO is planned for iPhone, iPad and Apple Vision Pro. Final compatibility details have not been confirmed in the provided material.

How much will RHEO cost?

Thorsten Meyer AI lists a planned price of $3.99 for a single universal purchase. The source says App Store pricing may vary by region and may change before release.

Does RHEO require an account?

According to the product spotlight, RHEO is designed to run locally with no account, no subscription, no ads and no in-app purchase model.

Is there a safety notice for photosensitive users?

Yes. The source says the app includes a photosensitivity notice and respects Reduce Motion. Users who are photosensitive should follow appropriate caution when using light-based visual apps.

Source: Thorsten Meyer AI

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