Fiskar
For people who make Android apps with Claude Code

Build real Android apps from your phone.

You describe the app. Claude Code builds it on your own Mac. You watch the screens appear, point at what's wrong, and install the result, all from the phone.

Free. No servers of ours. Your code stays on your Mac and in your own GitHub.

Why Fiskar

AI builds what you ask for. Everything else is on you.

The same problems come up again and again when you build apps with an AI coding agent. Every part of Fiskar exists to remove one of them.

You forget things

Sign-in, empty screens, error messages and offline only come up after testers complain. The Don't forget checklist puts them in the plan before Claude starts.

You can't see or steer it

See every screen within minutes. Tap what's wrong and Claude gets the exact file and line. Approve changes with one tap from a notification.

Your usage runs out

Free tools do the routine work, small tasks go to the cheapest model that works, and a receipt on every step shows what you used and saved.

It isn't yours

It runs on your own Mac with the Claude plan you already have. Code goes to your private GitHub. No credits, no lock-in, no extra bill.

How it works

Your phone steers. Your Mac does the work.

Fiskar is the remote for a coding agent that runs at home. The phone and the Mac talk over a private Tailscale link, so nothing passes through anyone else's server.

Your phone

Fiskar

Describe, approve, point at what's wrong, check and install. Works anywhere.

Your Mac

The bridge

Runs Claude Code, renders screen previews, builds quietly and runs checks with free tools.

GitHub

Your repo

Every change is saved. Every build is a release you can install or share.

A tour

From an idea to an installed app, without the computer.

Five tabs: Home, Design, Screens, Checks and Usage. These are real screens from the app, showing the sample bakery app "Crumb & Co".

The Don't forget checklist for a new app
Home · New app

Describe it. Then don't forget.

Answer a few questions by tapping. Fiskar suggests what apps like yours need: sign-in, empty screens, errors, offline, account deletion. Switch on what matters and each one goes in the plan with a check.

Mark features Must, Nice or Later. Claude builds the Musts first.

The live session view with an approval card
Home · Live

Watch it work. Approve with a tap.

See what Claude is doing as it happens. Safe actions are pre-approved on your Mac; only the rest reach you as Yes / No cards, in the app or right in a notification.

Lose signal mid-session? Nothing is lost. Messages wait and send when you're back.

Choosing a mood and main colour
Design

Choose the look for free.

Pick a mood and a main colour. The palette, light and dark, is worked out on the phone. Change fonts, corners, shadow and spacing. Save, and your Mac redraws every screen, with no AI usage at all.

Tapping an element on a screen preview to leave a note
Screens

Point at what's wrong.

Every screen appears as a preview minutes after Claude starts. Tap the button that looks off, choose Shadow, Size, Colour or Text, and say what's wrong. Claude gets the exact file:line, not "the button on the second screen".

Collect several notes and send them as one. Then compare before and after, and say ✓ Good or ✗ Not yet.

All checks pass, ready to install
Checks

Check it, then install it.

Each feature's "done when" line becomes a check in plain words, with a screenshot of what it saw. When they pass, tap Build new, then Install. The app lands on your phone and the release is saved on GitHub.

Usage rings, savings and model routing
Usage

Know where your limit goes.

Rings for the 5-hour window and the week, cost per app and per feature, and what Fiskar saved you. Auto picks the cheapest model that has worked before and moves up a model when a job needs it.

Measured

Small, precise tasks make cheap models enough.

Tested on Claude Code with real tasks. Fiskar makes each job small, so a cheaper model gets it right. The two savings multiply.

−64%usage to find the error in a 2,600-line build log, with a quiet build
−47%usage to find the line behind a button's shadow, with an element tag and file:line
93%of permission prompts get approved anyway, so only the rest reach your phone
$0on top of the Claude plan you already have
used 5.7k · saved 18.7k (−77%) · quiet build

Fiskar is in early beta.

Join the waitlist and we'll email you an invite. You'll need an Android phone (Android 10 or later), a Mac with Claude Code, and a Claude plan. Demo mode lets you try every screen before your Mac is set up.

Join the waitlist