Built by a vendor,
for vendors.

Owner spent her career in tech, now she's a farmer — building solutions she needs herself.

"I love Shopify, so I'm creating apps to fill the gaps."

Real-world origin

Built at the market booth before it was a product.

Priced fairly

Small vendors shouldn't pay enterprise prices.

Use when you need it

Pause between seasons — keep your data.

Real human support

You email a person. Reply within 1 business day.

Shopify Apps by MAD Valley Productions

PopUp: Sell by Weight

● Beta

Shopify POS doesn't support selling by weight. PopUp fixes that — and keeps everything in one place, no Square required.

  • → In person weight-based and by-item selling
  • → On-device catalog loads instantly, even with no signal at the market
  • → CSV import/export for on-device catalogs
  • → Forgot something? Add products from your phone on market day
  • → Every sale syncs to Shopify automatically — one report, one receipt
Join Beta ↓

Launch Day

In Development

The storefront lock control for your releases.

  • → Lock the store, collections, pages and products until your exact drop date and time
  • → Hide Add to Cart without unpublishing your products
  • → Restrict access to specific customers — VIPs, newsletter subscribers, wholesale buyers
  • → Auto-unlock and re-lock on a schedule — set it and forget it

Is this an app you need? Please take a few minutes to provide feedback in a survey.

Take Survey

Read the documentation

Setup guides, FAQ, and step-by-step walkthroughs.

PopUp Docs →
Launch Day Docs (coming soon)

Roadmap snapshot

Where things stand right now.

● Beta

PopUp: Sell by Weight

Passed Shopify review. Available to beta testers now.

↑ Up Next — Release

PopUp: Sell by Weight

Public App Store listing going live. Full release.

◇ In Development

Launch Day

Seasonal store locking, scheduled drops, Google suppression.

Become a Beta Tester for PopUp — Sell by Weight

We're here when you need us.

Real human support. No bots, no ticket queues.

Documentation

Setup guides, FAQ, and step-by-step walkthroughs. Start here first.

PopUp Docs →

Email support

Reach us directly. We respond within 1 business day, usually faster. Already using PopUp? Use the Support form inside the app.

support@madvalley.com →