RHEO: Paint With Light

TL;DR

Thorsten Meyer AI has detailed RHEO, a forthcoming light-painting app built around touch-responsive fluid color on iPhone, iPad and Apple Vision Pro. The source describes a $3.99 universal purchase, local operation, English and German localization, accessibility safeguards and Vision Pro modes, though launch timing and final App Store terms remain unclear.

Thorsten Meyer AI has detailed RHEO: Paint With Light, a forthcoming app for iPhone, iPad and Apple Vision Pro that turns touch, gesture and, on Vision Pro, gaze-based interaction into glowing fluid color. The announcement matters because RHEO is being positioned as a small, paid creative app built around low-friction visual play rather than feeds, scores, subscriptions or social mechanics.

The source describes RHEO as a one-touch fluid painting app in which users drag, flick or pinch to make light bloom, swirl and settle. It says the app is designed so that users can understand the core interaction in about 30 seconds, with no tool palette or skill barrier presented as part of the experience.

According to the product description, RHEO includes Breathe mode, where the fluid expands and eases with a breathing rhythm, and curated presets that set different visual moods. The source also says the app has ambient sound and haptics that respond to movement, plus shareable seeds that let another user open the same fluid state.

For Apple Vision Pro, the source describes two stages: The Veil, a curved canvas of light that responds to glance-and-pinch input, and Room mode, where the visual effect is said to spill into the user’s room. The same material states that RHEO has been verified on device at 88 to 90 frames per second, though that figure is presented as a product-stated performance claim and may vary by hardware.

At a glance
announcementWhen: described in a 2026 Built in Public spo…
The developmentThorsten Meyer AI published a Built in Public spotlight detailing RHEO, a forthcoming app described as a calm, touch-driven way to paint with liquid 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

A Quieter Creative App Bet

A Quieter Creative App Bet

RHEO’s pitch is less about production software and more about immediate creative feedback. The app is described as removing many common mechanics of consumer apps: no feed, no score, no streak and no account requirement. That makes the product stand out in a market where many mobile creative tools are tied to templates, sharing loops or recurring payments.

The pricing model is also part of the news. The source says RHEO will be sold as a $3.99 universal purchase across iPhone, iPad and Apple Vision Pro, with no ads, subscription or in-app purchases. It also cautions that App Store pricing can vary by region, so the final customer price may not be identical everywhere.

For readers following independent software and spatial computing, RHEO is also a small test of how Vision Pro creative apps can move beyond flat-window adaptations. The Room mode claim points to a more immersive use of the device, but the public material does not yet provide hands-on third-party verification.

Built In Public Product Details

The information comes from a Built in Public spotlight on ThorstenMeyerAI.com, described as part of an operator portfolio. The source frames RHEO as a deliberately calm app within a broader portfolio that also includes more complex decision and defense-related software work.

The spotlight describes RHEO as forthcoming, not as a product already broadly available. It says the app runs locally, requires no account, includes English and German localization, presents a photosensitivity notice up front and respects Reduce Motion. Those details are product descriptions from the source material, not independent App Store confirmation.

The app’s stated design goal is to make the interaction itself the interface. Rather than asking users to learn layered controls, the material says users can create varied effects through slow drags, fast flicks and pinch gestures. That keeps the background relevant: RHEO is being presented as a finished-feeling interaction concept, but with final release details still pending.

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

— Thorsten Meyer AI Built in Public spotlight

Release Details Still Pending

Several details remain unclear. The source calls RHEO forthcoming but does not provide a confirmed release date, App Store link or final launch schedule. It also says features, performance figures, pricing and availability may change.

The performance figure of 88 to 90 fps is stated in the product material, but there is no third-party benchmark in the supplied source. It is also not yet clear which specific iPhone, iPad or Vision Pro hardware conditions were used for that measurement.

Availability across regions is also unresolved. The stated $3.99 price is described as a single universal purchase, while the source notes that App Store pricing varies by region.

App Store Launch To Watch

The next milestone is a confirmed App Store release with final pricing, device compatibility, accessibility notes and regional availability. Readers should also watch for hands-on testing that can verify the Vision Pro Room mode, shareable seeds and performance claims under normal use.

Until those details are public, the confirmed development is that RHEO has been formally described as a forthcoming light-painting app, with its core features, design intent and planned purchase model laid out by Thorsten Meyer AI.

Key Questions

What is RHEO: Paint With Light?

RHEO is a forthcoming app described by Thorsten Meyer AI as a touch-responsive light-painting experience for iPhone, iPad and Apple Vision Pro.

Is RHEO already available?

The supplied source describes RHEO as forthcoming. It does not confirm a public release date or provide a final App Store listing.

How much will RHEO cost?

The product material states a planned $3.99 universal purchase with no subscription, ads or in-app purchases. It also says App Store pricing can vary by region.

What makes the Vision Pro version different?

The source says the Vision Pro version includes The Veil, a curved light canvas, and Room mode, where the liquid-light effect appears to extend into the user’s room.

Does RHEO require an account?

According to the source material, RHEO runs locally and requires no account. Final privacy details should be checked when the App Store listing is available.

Source: Thorsten Meyer AI

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