SellFast is a sister version of Assure (which includes WMS also). Key comparisons b/w SellFast and Assure are highlighted below:
| Feature | Assure | SellFast |
| Inventory exposure and fulfillment Integration with key portals Amazon MWS, Myntra Marketplace, Flipkart, PayTM, LimeRoad, SnapDeal, TataCliq | Yes | Yes |
| Multi Warehousing | Yes | Yes |
| Gift Label Processing | Yes | Yes |
| Purchase Order / Stock Transfer GRN | Yes | No |
| Deep integration with Amazon (with FBA status) and Myntra JIT | Yes | No |
| Full fledged WMS with Picking optimization, Pigeon hole for combining order items, Bins, Locations, GRN, Putaway, Cycle count | Yes | No |
| QC checks of inventory | Yes | No |
| Unique Item ID based processing or 99.9% inventory accuracy and fulfillment accuracy | Yes | No |
| Returns Processing | Yes | No |
| B2B order processing | Yes | No |
| Invoice Tax computation | Yes | No |