Open-source iOS app factory · runs on your Mac

The app that should exist,
on your phone tonight.

Say what it should do. TOHSENO writes native SwiftUI, builds it, verifies it, and installs it on the iPhone in your pocket. One repository. Yours. No account, no runtime, no landlord.

$ curl -fsSL https://tohseno.com/install | sh

The installer prints its source and the exact signed download before it asks for permission. Prefer a file? Notarized DMG ↗

An app is an idea made specific enough to meet reality.

[ 001 ] The loop

One intention. One real attempt. Then the next one.

There is no plan, no market, no pitch. There is a sentence, a build, and a thing in your hand that either helps or doesn't — which is the only feedback that has ever mattered.

01 / INTENTION

Describe it once

A plain sentence about your actual life. TOHSENO holds the first form of the app and asks the few questions that genuinely change the shape of it.

02 / FACTORY

It keeps working

Native SwiftUI, an ordinary Xcode project, compiled and verified on your own machine. Close the window — it carries on without you.

03 / CONTACT

It opens on your phone

Plug the iPhone in. The app installs and launches. Use it with your hands, and let the original idea lose its immunity from reality.

[ 002 ] Personal software

You are allowed to make software that only you use.

Every app below is too small to be a startup and too specific to be bought. That is exactly the category the App Store was never going to serve.

01 / Breathwork facilitator

BREATHEKEEPER

Guide a room through timed breath journeys without touching my phone

02 / Father of twins

WHO ATE?

Track which twin ate, slept, and pooped — without mixing them up

03 / Night-shift nurse

HANDOFF

Keep the details I'm too tired to trust my memory with

04 / Small farmer

WATER WALK

Tell me what needs water today before I walk the field

05 / Tattoo artist

INK MEMORY

Photograph every healed tattoo and remember the ink recipe

06 / Touring musician

ROOM TONE

Remember what every venue sounded like before tonight's soundcheck

[ 003 ] Ownership

The factory is a midwife. Not a landlord.

The test is simple: if TOHSENO shut down tonight, your app keeps building tomorrow. Everything below exists to make that sentence true.

01

Ordinary SwiftUI and XcodeNothing to learn that isn't already the platform. Any iOS developer can read it.

02

One Git repository per appOn your disk, from the first commit. Push it anywhere or nowhere.

03

No proprietary runtimeNo SDK to import, no server to reach, nothing that expires.

04

No TOHSENO accountLocal creation never asks who you are.

05

Continue with any model — or noneBring a subscription, point at a local endpoint, or just open Xcode and type.

06

Publish only when you choosePrivate by default. The app is yours before anyone else sees it.

Your idea does not need to become a startup
before it is allowed to become real.

[ 004 ] Before you install

One Mac app. Clear choices.

Machine

macOS 14+

With Xcode installed. TOHSENO walks you through signing and Developer Mode.

Device

An iPhone

A free Apple Personal Team is enough to sign for your own device.

Intelligence

Your choice

A supported subscription, an explicit local endpoint, or a capped prepaid balance.

Registry

Not yet

Local creation works today. Hosting, discovery and forking are still ahead.

What should exist?

$ curl -fsSL https://tohseno.com/install | sh

Paste it into Terminal. Read the source, confirm the signed download, press Return — and make the app better after you've used it once.