Two live apps, and private ones built to order.
Both came out of seeing the same problem across forty stores. Same instinct as the client work, just packaged.
PS: Bulk Variant Editor
$59 onceBulk edit and standardise variant names across a whole catalogue. Priced once rather than monthly on purpose: you do not restructure a catalogue every month, so you should not pay for it every month.
One time payment ยท 4.0 / 5.0
PS: Checkout Rules
$29 / monthCheckout protection. Block PO Box addresses, require house numbers, restrict zips and countries, and control which shipping and payment methods appear. Free plan available.
Subscription
One is bought once. One is rented.
Bulk Variant Editor is a one time payment because you do not restructure a catalogue every month, and charging monthly for a job someone does twice a year is a tax on forgetting to cancel. Checkout Rules is a subscription because it is enforcing something on every order, every day. The pricing follows the job, not the fashion.
When off the shelf does not fit.
Admin API and Storefront API work, embedded admin surfaces, webhooks, Shopify Functions, and checkout or POS extensions packaged as an app. Built for one merchant, owned by that merchant, never listed publicly. Priced like any other build, against a written scope.