Trunk review

Trunk does one job, keeping stock levels in sync everywhere you sell, and it is the most reviewed app on this list. Its listing names Shopify stores, Amazon, Bandcamp, BigCommerce, eBay, Etsy, Faire, QuickBooks Online, Square POS, Squarespace, TikTok, Walmart, Wix, WooCommerce and Xero among its connections, and every plan includes unlimited sales channels. When a unit sells on one channel, matching SKUs update in real time on the others, which is what prevents overselling. Essential costs $35 a month up to 100 orders, then $45, $59 and $89 as you pass 200, 400 and 800 orders. Pro costs $4 more at the first tier and adds bundling and kitting plus duplicate SKU syncing, which is useful even for single-store sellers who list the same item twice. Trunk does not forecast demand or create purchase orders, so pair it with a planning app if you need those.

Who it is for

merchants selling the same stock on several channels

Price

Essential from $35 a month up to 100 orders; Pro from $39 adds bundling.

Essential $35 / month
Quoted from the vendor pricing page on November 13, 2026.

Key features

• Real-time stock syncing between matching SKUs
• Connects multiple Shopify shops, Amazon, eBay, Etsy, Faire, TikTok, Walmart, Square POS and more
• Unlimited sales channels on every plan
• Bundling, kitting and duplicate SKU syncing on Pro
• Low stock alerts and live chat and email support

Strengths and weaknesses

• Strength: Listing shows a 4.9 rating from 408 merchant reviews, the most on this list
• Strength: Unlimited sales channels even on Essential
• Strength: Also syncs bundles and duplicate SKUs within one Shopify store
• Weakness: No forecasting or purchase orders
• Weakness: Price rises with orders, to $89 a month at 401 to 800 orders on Essential
• Weakness: Bundling needs the Pro plan

Key facts

• Starting price: $35 a month up to 100 orders
• Sales channels: Unlimited
• Free trial: 14 days
• Shopify App Store rating: 4.9 from 408 reviews at check time

Where it ranks

Trunk is No. 5 in our Best Shopify Inventory Apps verdict.