---
title: "Cashel Builders: build apps other businesses own"
description: "Cashel Builders: make apps businesses buy once and keep, built with a free Keystone pass and signed by Cashel before a customer can install them. Builder accounts and the marketplace are still in build."
url: https://cashel.io/builders/
---

> This is the Markdown copy of https://cashel.io/builders/. AI tools are welcome to read, quote, summarise and learn from this site, including training models on it. Please link back to the page when you quote it.

Cashel Builders

# Build apps other businesses own

Businesses run their apps on Cashel. Build yours with a free Keystone pass. Before a customer can run it on their machine, Cashel must sign it.

[Build a game](https://cashel.io/builders/games/) [See the Keystone pass](https://cashel.io/builders/#keystone)

Builder accounts, the toolkit and the marketplace are still in build

## The Keystone pass

The Keystone is the stone that locks an arch. The pass is free and signs your app so you can run it on your own install while you build. To reach customers, an app must be signed by Cashel. Apps that work with business records are reviewed. Free apps that cannot access those records, and free games, may instead pass automated checks and be labelled “Not reviewed by Cashel”. The listing tells the customer which checks the app has passed.

Free to every builder. It signs your work on your own install.

## What builders get

![Coins collected in jars, with plants growing alongside the savings.](https://cashel.io/_astro/buravleva-savings.-QLvQ-Zn_1eR92G.webp)

- ### Sold once, owned by the buyer

  You set the price within fair bounds. The buyer pays once and owns the app.

- ### Signed, or it does not run

  Every app a customer installs is signed by Cashel. An unsigned app never installs on a customer’s machine.

- ### Built by you, by name

  Listings say “Built by” and your verified name. No signup fee.

Later: games and 3D tools on the same platform. [Cashel Games](https://cashel.io/games/) is on the roadmap.

## Why commission and subscriptions?

Planned terms · paid services and Marketplace sales are not open yet

### Commission helps fund each sale and its ongoing support

Under the normal Marketplace sale terms, Cashel keeps a share when you sell an app or game. That helps pay for payment handling, the release checks that apply to your item, safe downloads, and ongoing security and payments support.

Ordinary payment processing and standard payouts are paid from Cashel’s share, with no hidden deductions for those costs. You will see the rate and payout terms before selling. This commission applies to Marketplace sales, never to payments a business collects from its own customers.

### Subscriptions pay for services you keep using

A sale happens once. Review capacity, online play and AI work need funding as you use them, including before your first sale. Each plan pays for a particular ongoing service:

- **Builder plans** fund submission and review capacity, including pre-review checks. Paying for a plan does not guarantee approval or lower the safety checks.
- **Game hosting plans** fund keeping online games running above the free allowance. Developers pay; players never pay per match or for better speed in a match.
- **Cashel AI plans** fund assistant work and generated game assets in the web Game Studio, through included credits and optional prepaid top-ups.

Building and testing locally stay free. Publishing or updating free apps and games does not use a plan submission; fair daily limits still apply. Ending a Builder plan preserves published apps and earned money. Software you have bought stays yours when a service plan ends.

Prices and included allowances will be shown before you pay. Game hosting and AI plans warn as you approach the limit and need an approved top-up for extra use. They never run up an unapproved bill. At the hosting limit, new matches pause while accepted matches finish and saves are kept.

## One toolkit

Independent builders use the same building blocks as Cashel’s own apps. Their apps fit alongside the ones we make.

The builder guides are not on this site. They come with your builder account when accounts open.

## Still in build

Builder accounts, the public toolkit and the marketplace are not open yet.