Compare

An Extensiv alternative sized for a small 3PL

Extensiv 3PL Warehouse Manager is the mid-market standard: EDI, hundreds of cart integrations, structured implementation, and a quote. Stowley trades the enterprise layer for a setup you finish in a day, published pricing, and a client portal your accounts actually open.

See pricing

Why operators look

Why small 3PLs look for an Extensiv alternative

Extensiv 3PL Warehouse Manager earns its position. It is built for third-party logistics from the ground up, with per-client billing automation, a customer portal, EDI and API connectivity, SmartScan mobile scanning, a small-parcel suite, and an Integration Manager that connects Amazon, Shopify, Walmart, eBay, and hundreds of other channels. Over 1,500 3PLs run on it, and a dedicated customer success manager comes with the subscription.

The friction for a smaller operator is the shape of the deal rather than the product. Pricing is not published; it is quoted against order volume and facilities. Onboarding is a project with an expert, a tailored configuration, and a go-live. For a 3PL with 3 to 50 client accounts that stores, picks, ships, and delivers, that is a lot of system and a lot of process for the volume.

Stowley is built for that operator. Multi-client inventory and per-client billing are the defaults. QR labels print on standard stock and scan from any phone. Every client gets a branded portal. Shopify and Amazon orders flow in through ShipStation. The whole thing is a flat monthly plan you can read on the pricing page, and a new client is live in an afternoon.

Fit

An honest fit check

Stay with Extensiv if

You exchange EDI documents with retailers or large shippers.
You fulfill high-volume e-commerce across many carts and need direct channel connections.
You want a dedicated customer success manager and a structured implementation.
You bill per transaction across many event types and need that captured automatically.
You are well past 50 client accounts or tens of thousands of SKUs.

Pick Stowley if

You run 3 to 50 client accounts out of one or a few warehouses.
Storage, handling, pulls, and deliveries are the bulk of what you bill.
Your clients want a portal they can open on a phone to see stock and request work.
Shopify and Amazon orders through ShipStation cover your e-commerce needs.
You want published pricing, no implementation project, and a month-to-month plan.

Side by side

Extensiv 3PL Warehouse Manager vs Stowley

Capability	Extensiv	Stowley
Built for	3PLs from small to enterprise, with a mid-market center of gravity	Boutique 3PLs with 3 to 50 client accounts
Pricing	Not published; quoted per operation	$69, $199, $399 per month, or Enterprise; annual from $49
Setup	Structured implementation with a dedicated customer success manager	Self-serve; most operators are live in an afternoon; no setup fee
Multi-client inventory	Yes, unlimited clients	Yes; strict per-client scoping; item caps 1,000 / 5,000 / 15,000 / unlimited
Client portal	Yes, with automated notifications	Yes; self-service on Advanced, white-label on Premium and up
Per-client billing	Billing automation with global and custom rates per transactional event; QuickBooks integration	Per-client schedules and storage rates, Stripe auto-pay (Premium and up), handling and postage as invoice lines
EDI	Yes	No
Store and marketplace orders	Integration Manager: Amazon, Shopify, Walmart, eBay, PayPal, and hundreds more	Shopify, Amazon, and other store orders through ShipStation only (Advanced and up)
Shipping labels	Small Parcel Suite with rate shopping and labels	ShipStation rate shopping, labels, voids, and tracking (Advanced and up)
Mobile scanning	SmartScan barcode scanning	QR labels scanned with any phone camera; no scanner hardware
Receiving, putaway, pick and pack	Yes, including EDI and import-file receipts	Yes; warehouse, zone, aisle, bin locations; packing slips on pulls
Condition reports and photos	Not listed	Condition reports, damage maps, and photos on every item (Advanced and up)
Deliveries and on-site jobs	Not listed	Delivery and on-site requests with crew assignment, signatures, and photos
Text notifications to clients	Not listed	Opt-in texts for received, completed, en route, past due (Advanced and up)
Accounting	QuickBooks integration	QuickBooks and Xero invoice files plus accountant email (Premium and up)
API	API and EDI through Developer Services	Outgoing webhooks and per-client data feeds (Enterprise)
Contract	Per quote	Month to month; cancel anytime

Details about other products come from their public pricing and feature pages and were last checked in October 2026. "Not listed" means we could not find the capability on the vendor's site, not that it does not exist. Spotted something out of date? Tell us and we will fix it.

Pricing

What each one costs

One is a quote. The other is on the pricing page.

Extensiv 3PL Warehouse Manager

Quote

Pricing is not published. Quotes are scoped to order volume and facilities, with a structured implementation.

Stowley

$69 to $399/mo

Basic $69, Advanced $199, Premium $399, Enterprise custom. Annual from $49, $149, $349. No setup fees.

Basic: 1 warehouse, 1,000 items, 2 seats, view-only portal, manual invoicing
Advanced: 5 warehouses, 5,000 items, 5 seats, self-service portal, ShipStation, texts, condition reports
Premium: 10 warehouses, 15,000 items, 10 seats, Stripe recurring billing, white-label, reports, accounting files

Switching

Moving from Extensiv

Export customers and inventory from 3PL Warehouse Manager. The Stowley importer recognizes the export directly, matches any other columns loosely, and keeps unknown columns as custom fields so nothing is dropped.

Import clients first, then inventory; each item links to its client by name. Preview every row, bring open balances across as starting-balance invoices, and connect ShipStation on the Integrations tab so store orders keep flowing. Most boutique 3PLs are cut over in an afternoon.

See the Extensiv import path Have us load it

FAQ

Frequently asked

Is Stowley a WMS?

It is a lightweight 3PL WMS. Receiving, putaway to warehouse, zone, aisle, and bin, pull requests with packing slips, shipping with ShipStation labels, per-client billing, and a client portal are all there. What it leaves out is the enterprise layer: EDI, wave planning, and integrations with hundreds of shopping carts. For a 3PL with 3 to 50 client accounts, that is usually the layer you were paying for and not using.

Does Stowley integrate with Shopify and Amazon?

Through ShipStation. When you fulfill a client's Shopify, Amazon, or other store orders in ShipStation, Stowley picks up every label, creates the completed shipping request, checks the shipped SKUs out of that client's stock, and flags anything it cannot match. There is no direct store connection, and ShipStation needs its Standard plan or above for an API key. Extensiv connects to carts directly through its Integration Manager.

Can I bill each client with different rates?

Yes. Each client has its own recurring billing schedule, storage rate, and payment method on file. Storage fees generate automatically and auto-charge via Stripe on Premium and up; handling, pulls, and postage with a markup go on as invoice lines. Aging and past-due tracking happen per client. Extensiv's billing automation is broader, capturing per-transaction charges across many event types.

What size 3PL fits Stowley?

From a single shared warehouse with a handful of clients up to multi-warehouse operations with 50 or more client accounts. Item caps are 1,000 on Basic, 5,000 on Advanced, 15,000 on Premium, and unlimited on Enterprise. If you run thousands of parcels a day with retailer EDI, Extensiv is the right category.

Can I move from Extensiv to Stowley?

Yes. The importer recognizes Extensiv 3PL Warehouse Manager exports directly and matches any other spreadsheet's columns loosely. Import customers first, then inventory, preview every row, and bring open balances across as starting-balance invoices. Most boutique 3PLs are cut over in an afternoon. If you would rather not touch the export, send it to us and we load it.

How does pricing compare?

Extensiv does not publish 3PL Warehouse Manager pricing; quotes are scoped to your operation. Stowley publishes flat plans: Basic $69, Advanced $199, Premium $399 per month, Enterprise custom, with annual billing from $49, $149, and $349. There are no setup fees on Basic, Advanced, or Premium, and plans are month to month.

Keep comparing

WMS for boutique 3PLs

What a lightweight 3PL WMS covers and where enterprise systems differ.

Read

Boutique 3PL software

Multi-client inventory, per-client portals, and white-label branding.

Read

Sortly alternative

For operators coming from a general inventory app rather than a WMS.

Read

Live demo

See a 3PL system you can set up today

Open a ready-made demo with several sample clients, separate portals, and per-client billing already configured. Receive a shipment, pick a pull, buy a label, and run invoicing, with no sales call first.

Request a Tour

Quick email check-in for a demo. No strings attached.