E-commerce businesses have specific tool needs that generic small business stacks don't fully cover: abandoned cart recovery, inventory management, multi-channel selling, and customer lifetime value optimization. Here's the tested stack for e-commerce in 2026.
Email marketing: Klaviyo
Klaviyo is the standard for e-commerce email for a reason. Native Shopify integration, behavioral triggers (viewed product, abandoned cart, purchased, repurchased), and revenue attribution that shows exactly which emails generate sales. Free for up to 250 contacts. Paid starts at $20/month for 500 contacts.
Mailchimp has better general email features, but Klaviyo's e-commerce-specific automation is significantly more powerful for online stores. The abandoned cart sequence alone typically recovers 5-15% of abandoned carts.
Customer support: Gorgias
Gorgias is built specifically for e-commerce support — it pulls order data directly into the support view so agents can issue refunds, modify orders, and check tracking numbers without leaving the ticket. Starts at $10/month (50 tickets). Most growing stores land on Pro ($60/month for 300 tickets).
For smaller stores, Freshdesk or Help Scout work fine. Gorgias makes sense when your support volume justifies the e-commerce-specific features.
Inventory management: Inventory Planner or Skubana
If you're selling across Shopify + Amazon + wholesale, inventory management becomes a real operational problem. Inventory Planner ($99/month) uses historical data to predict reorder points. Skubana (now Extensiv) is more comprehensive for multi-channel operations. For stores on a single channel with simple inventory, Shopify's native inventory management is enough.
Reviews: Okendo or Judge.me
Social proof drives e-commerce conversion more than almost any other factor. Judge.me is the best value option ($15/month for unlimited reviews with photos and videos). Okendo ($19/month starting) has better customization and integrates tightly with Klaviyo for post-purchase review request automation.
Upsell and cross-sell: ReConvert
Post-purchase upsells are the highest-converting moment in e-commerce. ReConvert adds a customizable thank-you page with one-click upsell offers. Starts at $4.99/month. Returns are typically 10-20x the subscription cost.
Analytics: Triple Whale
Triple Whale consolidates ad spend, Shopify revenue, and email revenue into one dashboard with accurate attribution. The attribution problem (knowing which channel actually drove a sale) is genuinely hard — Triple Whale solves it better than the individual channel dashboards. Starts at $129/month; worth it when you're spending $10k+/month on ads.
The lean e-commerce stack
If you're under $50k/month revenue: Shopify ($29/month) + Klaviyo Free + Judge.me ($15/month) + Freshdesk Free. Total: $44/month. Everything else is optional until you hit specific growth problems.