Sentry WMS vs ShipBob

Sentry WMS is a free, open-source warehouse management system for e-commerce fulfillment. It covers receiving, storage, picking, packing, shipping, and counting, while relying on an existing database or ERP to manage orders, products, or customers. Pick Walk supports batch picking across multiple orders with serpentine walk path optimization. Inventory functions include bin-level cycle counts with variance detection and an administrator approval workflow, along with transfers and adjustments tracked by reason. The connector framework provides a starting structure for ERP, commerce, and other HTTP API connections, but the project does not ship first-party connectors for named systems such as NetSuite, QuickBooks, Shopify, or BigCommerce. The documented stack includes a React web admin panel, a React Native mobile app, a Flask API, and Docker Compose deployment. Android setup uses a sideloaded APK connected to the operator's API server. Production deployment requires configured secrets; HTTPS requires a reverse proxy in front of the HTTP-only API. CSV or JSON bulk imports are limited to 5,000 records per import. Version 1.7.0 and later are Apache License 2.0; earlier tagged releases remain MIT-licensed.

ShipBob provides fulfillment services and software for ecommerce businesses, automating order picking, packing, shipping, tracking, and inventory management. Its warehouse software processes B2C orders according to each fulfillment center’s outbound SLA, which varies by location from noon to 6 p.m. local time. Product photos, digital checks during picking and packing, and merchant packaging preferences support order accuracy. Inventory tools include bundling, merging duplicates, real-time stock levels, distribution data, and reorder notifications. Analytics cover order and inventory visibility, fulfillment performance and SLA data, transit times, and demand forecasting. Native ecommerce integrations include Shopify, WooCommerce, BigCommerce, Squarespace, Amazon, and Walmart. ShipBob says its fulfillment centers operate in the United States, Canada, the EU, the UK, and Australia, with carrier partnerships including UPS, USPS, FedEx, and DHL. Fulfillment quotes are customized, and kitting or other unique requirements may add costs. ShipBob software is free for customers and connects stores to manage inventory, orders, and shipments; fulfillment services have no listed price.