Plainstack

Small Shopify apps with one flat price and nothing hidden

Plainstack apps do one job, ask for the least access to your store they need, cost the same whether you sell ten orders or ten thousand, and leave nothing behind when you uninstall.

Linen shirt

$25.00

Quantity discounts

  • Duo$22.50 eachSave 10%2 for $45.00 $50.00 You save $5.00
  • Trio Best value$21.25 eachSave 15%3 for $63.75 $75.00 You save $11.25
  • Family pack$20.00 eachSave 20%4 for $80.00 $100.00 You save $20.00

Mix and match any options.

Discount unlocked: $21.25 each

The real product page block, live: pick a tier, then a size and color for each item.

Our apps

One app today, built to be finished rather than big. The next one starts when this one is solid.

Early access: free

Volume Discounts and Buy X Get Y

Quantity breaks and BOGO deals that Shopify applies at checkout. Mixed sizes and colors count toward the same tier.

  • Two permissions: discounts and products
  • No access to customers or orders
  • Stores that install now stay free forever
See how it works

Next app

Not announced yet

We only name an app once it works. The waitlist hears about it first, in one email.

Join the waitlist

Your call

Which app bill annoys you most?

Tell us which app you pay too much for, or which one charges you by your sales. It shapes what we build next.

Email us your idea

How we build

Every Plainstack app follows the same three rules. Here they are, itemised.

PLAINSTACK · HOUSE RULES

Price flat
One price per month, the same at ten orders or ten thousand. Never a share of your sales, no usage charges, billed by Shopify.
Data minimum
Only the permissions the app needs. No customer data, no tracking scripts on your storefront.
Uninstall clean
Nothing keeps running and nothing is left in your theme. Billing stops with the app.

Why we started

We read a lot of app reviews written by store owners. The same complaints kept coming back: bills that grow with your revenue, discounts that break when a customer mixes sizes, and charges that continue after the app is gone.

So we build the opposite. Small apps, priced like a utility, that ask for as little as possible and are easy to leave. If one of ours ever lets you down, write to us: you'll get an answer within 24 hours.

Join the waitlist

Get an email when the volume discounts app is live in the App Store and when a new Plainstack app launches. Nothing else.

One email per launch. To leave the list, reply to any email or write to support@plainstackapps.com; see Privacy.