ProKinetic — native motion for Apple platforms

Feel the motion your agent writes.

Lift a real SwiftUI view from your project onto a 120Hz canvas, tune its springs and shaders with dials, and write the numbers back to your file — after you've seen the diff.

For Mac · macOS 14+ · founder price while the 50 seats last

Tuner · RideCard.swift, lifted from your projectMotion Studio · logo_reveal.pkmotionLive at your display's refresh rate · 120 Hz on ProMotion1920 × 1080 · 60 fps

ProKinetic Tuner: a lifted SwiftUI ride card on a device canvas, with the spring card and dials beside it

Plain SwiftUI. No runtime.

What you export doesn't depend on ProKinetic. No player, no library, no lock-in.

Real springs.

The preview is the spring that ships — closed-form and frame-exact, not an approximation.

AI drafts. You decide.

The agent edits things you can still touch: dials, layers and keyframes. Never a wall of code.

01Why

Built because AI could write the code — but not feel the motion.

We kept reaching the same moment building interactions with AI: the diff looked promising, but there was no way to know whether the spring felt right without dropping out of the flow and running it.

So: more guesses, more prompts, more back-and-forth. Tuner is the tool we wanted beside our own agent — a native, tactile place to refine the part a model can't judge for you.

02How it works

Ask. Lift. Tune. Hand it back.

Ask your agent

Give Claude Code or Codex an interaction task and tell it to open the result in ProKinetic.

Lift your real view

The MCP lifts your actual SwiftUI view and what it depends on onto a native canvas — not a re-creation.

Tune it at 120Hz

Turn dials for spring response, damping and shader values, and feel every change on ProMotion.

Hand it back

Apply shows the diff first. Nothing is written to your file until you press Apply.

03What's different

Your view. Your values. Your diff.

Your real view

The MCP lifts your actual SwiftUI view with what it depends on — not a re-creation.

Dials from your code

Every dial comes from the view's own animation values. Turn one; feel it at 120Hz.

The diff before Apply

Apply shows the diff first. Nothing touches your file until you press Apply.

Metal, compiled live

Shaders compile as you tune them, on the same canvas as the view.

4K and 8K video

Record the tuned motion, gestures included, at the size of your launch.

Real springs

Closed-form springs, so the canvas, the export and Xcode agree.

Works with your agent

Claude Code and Codex through the MCP server — or your own Anthropic or OpenAI key, kept in the macOS Keychain.

Claude CodeCodexMCPAnthropic keyOpenAI keyKeychain

Local-first: your project and every render stay on your Mac.

04Try it

Flick it. Turn two dials. Read the line.

The same closed-form spring the app evaluates, ported to the page — the numbers mean what they mean in Xcode.

Drag and fling the card →

Flick me

Response0.42 sDamping0.60

SwiftUI

.spring(response: 0.42,
        dampingFraction: 0.60)

Peak +9.5% · bounce 0.40 · settles 0.66 s

Closed-form, like the app's MotionChannelEval — not a guess at a duration.

05Demos

Tuned in ProKinetic.

See all demos

The gelly command bar

An “Ask anything” bar that springs open into your agents.

Prompt

Turn this “Ask anything” bar into something you can feel. When it opens, let it stretch up into the agent list with a soft, gel-like elasticity — the edges should wobble and settle like jelly — then compress back down into the bar when it’s dismissed.

Response 0.38 sDamping 0.58Elasticity 0.72

Cards with weight

Tune the response until the expand feels physical.

Prompt

Give this card real weight. When it opens, let it expand into the full list with a confident spring — a touch of overshoot, then a clean settle — and fold back without any lingering bounce.

Response 0.42 sDamping 0.78Overshoot 6%

A shader, compiled live

A Metal shader written by prompt and tuned on the canvas.

Prompt

Build a warm, living backdrop — a slow plume of light that blooms from a single thread, breathes at its peak, then dissolves. It should feel organic, never a visible loop.

Intensity 0.62Flow 0.30Falloff 0.74

01Where it ends up

Most motion tools end at a video. Motion Studio ends in your repo.

Video tools hand you a render to rebuild by eye. Runtime tools hand you a file your app plays through their library. Motion Studio hands you Swift source.

a · Video tools

Render a video.

export.mp4

A video. Someone rebuilds it in code, by eye.

b · Runtime tools

Ship a player.

animation.json + player

A file your app plays through their library, for good.

c · Motion Studio

Ship source.

LogoReveal.swift

struct LogoReveal: View { … }

Swift source in your repo. No runtime, no player file.

02How it works

Import. Animate. Add states. Ship.

Import

Bring finished SVGs from Figma or Illustrator. Paths, shapes, groups, fills, strokes and text arrive as layers.

Animate

Keyframes on a timeline with real springs, curves, morphs, merges and stagger. Scrub it — it's frame-exact.

Add states

Idle, loading, done. A state graph with transitions you can interrupt anywhere — Simulate to try them.

Export & ship

Copy SwiftUI, save a Swift package, render 4K video — or let Claude Code ship it into your repo.

03What's inside

A motion tool that speaks SwiftUI.

Timeline

Keyframes, easing, a curve editor and onion skin — timed in frames.

Springs as timing

The spring you preview is the spring that ships: response and damping, not a guessed duration.

Shape motion

Morph, metaball merge, trim and travelling strokes, motion paths and stagger.

States

A state graph with crossfade, hold and match transitions, interruptible anywhere.

Co-pilot

Describe it; get layers and keyframes back as a draft you keep, revert or tune.

Export

Copy it, save a Swift file, a folder or a Swift package — or render 4K and 8K video.

Ship with Claude Code

Claude Code writes it into your repo. You approve the plan and the diff first.

Projects

.pkmotion packages that autosave and keep their history.

04Try it

Scrub it. Drag a key. Read the Swift.

It runs the same closed-form spring the app evaluates, so the numbers mean the same here as in Xcode.

frame 42 / 90

01020304050607080

offset x

Drag me

opacity

key on frame 28 · response 0.42 · damping 0.60

LogoReveal.swift

import SwiftUI

struct LogoReveal: View {
    @State private var shown = false

    var body: some View {
        PKMark()
            .offset(x: shown ? 0 : -48)
            .opacity(shown ? 1 : 0)
            .animation(.spring(response: 0.42,
                               dampingFraction: 0.60),
                       value: shown)
            .onAppear { shown = true }
    }
}

Live — follows the timeline

05Demos

Made in Motion Studio.

The six comps of our launch film, Two Stripes — every frame of it made in Motion Studio.

See all demos

C1 · Two Stripes

The problem

Eased curves that only look right, against a spring you can feel.

Made from: C1-problem.svg · 45 layers
Exported as: 4K video · 3840 × 2160 · 60 fps

C2 · Two Stripes

ProKinetic

The mark builds itself and splits into the two products.

Made from: C2-prokinetic.svg · 40 layers
Exported as: 4K video · 3840 × 2160 · 60 fps

C3 · Two Stripes

Feel

Tune the spring by hand, replay a real gesture, take it as one line of Swift.

Made from: C3-feel.svg · 104 layers
Exported as: 4K video · 3840 × 2160 · 60 fps

C4 · Two Stripes

Shape

Drop in the SVG, key it on frames, ease it on a spring.

Made from: C4-shape.svg · 161 layers
Exported as: 4K video · 3840 × 2160 · 60 fps

C5 · Two Stripes

Craft

Shape motion on one track, then a prompt that hands back editable keys.

Made from: C5-craft.svg · 153 layers
Exported as: 4K video · 3840 × 2160 · 60 fps

C6 · Two Stripes

Ship

Out as Swift or as film — and the sign-off this film ends on.

Made from: C6-ship.svg · 186 layers
Exported as: 4K video · 3840 × 2160 · 60 fps

06Better together

Design it. Ship it. Tune it.

Every licence has both products in one app. Switch with ⌘1 and ⌘2.

01 · Design it

In Motion Studio

Animate your SVGs on a timeline with real springs, morphs and states.

⌘2

02 · Ship it

With Claude Code

It writes the view into your repo. You approve the plan and the diff first.

MCP

03 · Tune it

In Tuner

Lift the shipped view onto a 120Hz canvas and feel every spring in place.

⌘1

07Pricing

One app. Both products.

Buying ProKinetic gets you Tuner and Motion Studio. Pay monthly, or buy it once and keep it.

Founder · 50 seatsBest value

$97onceevery future update

Tuner and Motion Studio, with every future update — for one payment.

Both products, yours for life
Every future update — founders only
First in line the day it ships
A private founder Discord
14-day money-back guarantee

Become a founder — $97

Founder pricing holds while the 50 seats last.

At launch

$299oncewith a year of updates

Or $29 a month, with a 14-day free trial. Tuner and Motion Studio either way.

Tuner and Motion Studio in one app
Keep the version you bought — it never stops
Another year of updates: $149, optional
Monthly stops at the end of the month
Everything you exported stays yours

Available at launch

Prices at launch. Every licence includes both products.

Monthly for a project. Buy once if you'll use it for ten months or more.

08FAQ

Questions.

Anything else — ask us on X, @iosmumo.

What's the difference between Tuner and Motion Studio?

Tuner tunes motion your coding agent already wrote: it lifts your real SwiftUI view onto a 120Hz canvas and gives you dials. Motion Studio designs motion from your SVGs on a timeline. Both hand you plain SwiftUI.

Do I get both?

Yes, always. Every licence includes Tuner and Motion Studio.

Is it one app?

Yes. One download — switch with ⌘1 and ⌘2.

Do I need AI?

No. Every dial, layer and keyframe works by hand. The agent features run through your own Claude Code or Codex session.

What does the output run on?

Plain SwiftUI for iOS 17 and macOS 14 or later. No runtime, no player file, no ProKinetic dependency.

What do I need to run it?

A Mac on macOS 14 Sonoma or newer. Built for ProMotion 120Hz; it runs on any Mac.

How do I reach you?

On X — @iosmumo (x.com/iosmumo).

Feel it.

Shape it.

Ship it.

Founders get both products and every future update for $97, while the 50 seats last.

For Mac · macOS 14+ · 14-day money-back guarantee

Feel the motion your agent writes.Design motion that ships as SwiftUI.

Plain SwiftUI. No runtime.

Real springs.

AI drafts. You decide.

Ask your agent

Lift your real view

Tune it at 120Hz

Hand it back

Your real view

Dials from your code

The diff before Apply

Metal, compiled live

4K and 8K video

Real springs

Claude Code and Codex through the MCP server — or your own Anthropic or OpenAI key, kept in the macOS Keychain.

The gelly command bar

Cards with weight

A shader, compiled live

Import

Animate

Add states

Export & ship

Timeline

Springs as timing

Shape motion

States

Co-pilot

Export

Ship with Claude Code

Projects

The problem

ProKinetic

Feel

Shape

Craft

Ship

In Motion Studio

With Claude Code

In Tuner

Feel the motion your agent writes.