Lightspeed + Shopify
Both can keep your point of sale and Shopify in sync. The difference is depth — Octopus is a broad connector across many platforms, while Mortar runs your store and Shopify as one operation: real-time sync, order routing, returns, and gift cards across channels.
Lots of apps claim to sync your POS and Shopify. Mortar is built to run them as one operation — focused on doing that deeply, and accurate down to the transaction.
Mortar does one job: run your POS and Shopify as a single operation. It's not a generic connector stretched across dozens of platforms — it's purpose-built for retail, so there's less to break and nothing new to learn. Your team keeps working in the POS they already use, and Mortar handles the rest.
Mortar records returns and exchanges as proper transactions in your POS — at the location that fulfilled them — and syncs the Shopify order edits most integrations don't carry back at all. The payoff: a full audit trail, accurate per-location numbers, and inventory that doesn't quietly drift out of sync.
Mortar (by Accumula) is listed on Lightspeed's and Heartland's own integration directories, winner of the Lightspeed Customer Success and Service Excellence Awards, and the integrator more Lightspeed merchants rely on than any other. With one support team that knows both platforms and owns your integration end to end.
Octopus Bridge, by 24Seven Commerce, connects a number of POS systems to e-commerce platforms and marketplaces, and it works for a lot of retailers. If you're evaluating both, this page gives you a direct comparison — what each handles, what each doesn't, and where the day-to-day difference shows up. Mortar is built by Accumula, a Lightspeed Customer Success and Service Excellence Award winner and the integration provider more Lightspeed retailers rely on than any other. The app was rebranded from Accumula to Mortar in late 2024 — if you've seen reviews or recommendations for “Accumula,” that's the same product.
See Mortar’s reviews on Shopify and G2 →Mortar starts at $39/month. Octopus Bridge at $79/month for cloud POS like Lightspeed. Here's how the features compare, based on each product's public listings (June 2026).
Mortar runs your store and your online store as one operation. Add channels while you keep working in the POS you already use. Sell everywhere your customers are — without the work multiplying.
Your store, everywhere.
Why Mortar
Published starting price, self-serve setup, and the things sync alone doesn't cover — real-time updates, automatic order routing, cross-channel returns, and gift card sync. Start a free trial and connect Lightspeed or Heartland and Shopify in minutes.
Connect your Lightspeed Retail account to Shopify in minutes.
Last updated: May 2026