SHOPIFY APPS & DEVELOPMENT

Apps and expert development for ambitious Shopify stores.

MerchTools builds focused Shopify apps — post-purchase upsells, no-code discounts, margin protection and B2B — and takes on development from small fixes to custom apps and full builds.

Explore the apps Start a project
Margin GuardCHECKOUT VALIDATION
LIVE
ORDERCOSTMARGINSTATUS
#4821 · Alpine Supply Co.$412.0634.2%PASSED
#4820 · Draft — wholesale$1,208.4011.4%BLOCKED
#4819 · Repeat customer$96.2041.8%PASSED

Our Shopify apps

Purpose-built for the surfaces Shopify merchants actually need in 2026 — checkout extensibility, native Functions and B2B.

Thank You Toolkit

Turn the post-purchase moment into repeat revenue.

Add blocks to Shopify's new Thank-you and Order-status pages: a custom message, a unique one-time coupon for the next order, a post-purchase survey, and upsells — ready before the checkout-extensibility deadline.

  • Unique one-time or static coupon codes
  • Post-purchase survey with results dashboard
  • Custom message & upsell blocks
  • Built for the new Thank-you + Order-status pages

Discount Rules Builder

No-code promotions that outlive Shopify Scripts.

Build spend tiers, quantity breaks and BOGO offers without code — running as native Shopify Functions. The modern successor to Scripts, with a structured builder instead of scripts to maintain.

  • Spend tiers, quantity breaks, BOGO
  • Runs as native Shopify Functions
  • Activate / deactivate in one click
  • Product & collection targeting

Margin Guard

Stop unprofitable orders before they happen.

Set a minimum margin and Margin Guard blocks checkouts that would sell below it — comparing per-variant cost to price at checkout. Catch pricing mistakes and over-stacked discounts before they cost you.

  • Per-variant cost vs. price checks
  • Configurable minimum-margin floor
  • Block, monitor or skip modes
  • Cost sync from Shopify inventory + overrides

B2B Quotes & Wholesale Layer

Quotes, negotiated pricing and credit terms for wholesale.

Give wholesale buyers a request-a-quote flow, negotiate per-unit pricing, enforce per-company credit limits with a Net-terms ledger, offer CSV reorder, and convert accepted quotes into draft orders in one click.

  • Request-a-quote from the storefront
  • Per-company credit limits + Net-terms ledger
  • CSV reorder & buyer approvals
  • One-click convert to draft order

Apps are rolling out to the Shopify App Store. Want early access for your store? Email us.

Shopify development, any size

Beyond our apps, we take on Shopify work end to end — from a quick theme fix to a custom app or a full store build. WooCommerce support is on the roadmap.

Small tweaks & fixes

Theme edits, Liquid, bug fixes and quick wins. Hourly or fixed-scope, no minimum retainer.

Custom apps & Functions

Private or public Shopify apps, checkout and customer-account extensions, and Shopify Functions built from scratch.

Checkout & migrations

Move off Scripts and onto checkout extensibility before the deadlines — Thank-you, Order-status and validation flows.

B2B & wholesale

Companies, catalogs, negotiated pricing, quotes and credit terms wired into your store and back office.

Native Shopify Functions & checkout extensibility — not legacy hacks.

Privacy-first: we don't pull customer data we don't need.

A direct line to the developer — no account-manager telephone game.

Have a Shopify project in mind?

Tell us what you're trying to ship. We'll reply with a plan and a straight answer on scope and cost.

hello@merchtools.net