Trunk is a Shopify app developer that makes Trunk ‑ Stock Sync & Bundling, an inventory sync app on the Shopify App Store. It provides multi-channel inventory syncing and management for Shopify merchants. It is rated 4.9 out of 5 from 408 reviews on the Shopify App Store. It carries Shopify's Built for Shopify badge. Trunk ‑ Stock Sync & Bundling has 2 plans on the Shopify App Store, from $35 to $39 a month. Some plans add usage charges on top, listed with each plan.
Overview
Trunk is software that keeps inventory stock levels synced across a merchant's sales channels. It builds a central inventory from the merchant's listings and updates stock levels when orders, refunds or manual changes happen. It is meant to help merchants who sell in more than one place avoid overselling.
For Shopify brands
- Keeps stock levels on Shopify matched with other channels such as Etsy, eBay, Faire and Square, so counts are not updated by hand.
- Builds its own inventory from your listings and links items that share a SKU automatically.
- One subscription covers all connected sales channels, including several Shopify stores.
How it works
The brand connects its sales channels, starting with the one that has the most accurate stock levels. Trunk builds a central inventory from the listings, links items with matching SKUs, and keeps watching for new, changed or removed listings. Setup takes a few minutes when SKUs already match, with an in-app walkthrough and live chat.
- Pricing
- Charged monthly by orders per month, in USD, with no setup fee and a 14-day free trial. Essential runs $35 to $279 and Pro $39 to $329 for up to 10,000 orders; above that, contact Trunk. The App Store listing shows a free plan.
Products
- Trunk ‑ Stock Sync & Bundling Shopify app that syncs stock levels across sales channels, with low stock alerts.
- Essential Plan with real-time stock level syncing, low stock alerts, unlimited sales channels, and chat and email support.
- Pro Plan with everything in Essential plus bundling and kitting and duplicate SKU syncing.
Integrations
Buyer notes
- Setup takes a few minutes if SKUs already match across channels; a walkthrough and live chat are included, with no onboarding fee.
- 14-day free trial with all features and no credit card required.
- One subscription covers all sales channels, including multiple stores on the same platform.
- Currently syncs stock levels only; no fulfillment platform integrations such as ShipStation or ShipHero yet.
From Trunk's own site and Shopify App Store listings, as of 2026-10-30.
On the Shopify App Store
Trunk ‑ Stock Sync & Bundling
4.9 · 408 reviewsBuilt for ShopifyFree planPaid from $35/moLaunched 2019Inventory syncNever oversell again and let Trunk give an extra helping hand with your inventory, giving you back the bandwidth to grow and sell on even more plac...
Pricing
Essential$35/monthor $45/mo: 101-200 orders/mo, or $59/mo: 201-400 orders/mo, or $89/mo: 401-800 orders/mo. See pricing if 801+ orders/mo
- 14-day free trial
- Real-time stock level syncing
- Low stock level alerts
- Unlimited sales channels
- +1 more
14-day free trialPro$39/monthor $59/mo: 101-200 orders/mo, or $79/mo: 201-400 orders/mo, or $119/mo: 401-800 orders/mo. See pricing if 801+ orders/mo
- 14-day free trial
- Everything in the Essential plan, plus:
- Bundling & kitting
- Duplicate SKU syncing
14-day free trial
Ratings, reviews, plans, prices and descriptions as the Shopify App Store lists them. how we count.
What Shopify apps does Trunk make?
Trunk has 1 app on the Shopify App Store: Trunk ‑ Stock Sync & Bundling.
How is Trunk ‑ Stock Sync & Bundling rated?
Trunk ‑ Stock Sync & Bundling is rated 4.9 out of 5 from 408 reviews on the Shopify App Store.
How much does Trunk cost?
Trunk ‑ Stock Sync & Bundling has 2 plans on the Shopify App Store, from $35 to $39 a month. Some plans add usage charges on top, listed with each plan. Trunk ‑ Stock Sync & Bundling: Essential, $35/month (or $45/mo: 101-200 orders/mo, or $59/mo: 201-400 orders/mo, or $89/mo: 401-800 orders/mo. See pricing if 801+ orders/mo); Pro, $39/month (or $59/mo: 101-200 orders/mo, or $79/mo: 201-400 orders/mo, or $119/mo: 401-800 orders/mo. See pricing if 801+ orders/mo).