inFlow vs SOS Inventory
We give inFlow a 2.6 GPA and SOS Inventory a 2.4, out of 4.0. inFlow grades higher on platforms. They get the same grade on value for money, the free plan, features and ease of use.
Price, platforms and features side by side. The table says where each price was read and when.
inFlow
Inventory, orders and barcoding for wholesalers and small warehouses
SOS Inventory
Inventory, orders and manufacturing add-on for QuickBooks Online
How we grade them
| 2.6GPAinFlowGood | 2.4GPASOS InventoryFair | |
|---|---|---|
| Value for money | CFor a shop and an online store, Lite does it: $99 a month billed yearly ($129 monthly) for 2 team members, 1 location and unlimited integrations. Right in the middle of this category. A second location is $39 a month more, and Core jumps to $299 plus $499 onboarding. | CCompanion is $699.50 a year billed yearly ($69.95 monthly) for 2 users and one location, and an online store connection like Shopify is $25 a month on top. That lands in the middle of this category, and it's built for people already paying for QuickBooks Online. |
| Free plan and trial | CNo free plan, just a 14-day free trial with no credit card required. Long enough to scan in some stock and connect your store before paying. | CNo free plan, just a 14-day free trial to see how it fits with your QuickBooks Online books before you pay. |
| Features | BStock across locations, sales orders to invoices, purchase orders with reorder points, barcode scanning, lots and serials, and a B2B portal. The whole stock-control job, though lots, serials and the portal are $39 add-ons on lower plans, and makers need the separate inFlow Manufacturing. | BSales orders, partial shipments and invoices, pick tickets, serial and lot tracking, unlimited locations, assemblies, work orders and job costing, with FIFO, LIFO or average costing. The whole job, though serials, barcodes, pick tickets and extra locations need Plus. |
| Ease of use | CNo store rating on record. You'll import products, set up locations and connect your store and accounting, and every plan above Lite requires a $499 onboarding package. | CNo store rating on record. It runs alongside QuickBooks Online, so you'll connect that and set up items, locations and forms before it pays off. |
| Platforms and integrations | AWeb, Windows, iPhone and Android, with Shopify, Amazon, WooCommerce, BigCommerce, Etsy, QuickBooks Online, Xero and Zapier, plus an API ($49 a month on lower plans). That's the full spread. | BWeb and iPhone or iPad, with no Android app listed. It connects to QuickBooks Online, ShipStation, UPS and Zapier, and to Shopify, BigCommerce and PayPal as $25-a-month connections. |
| Best for | wholesalers who scan stock with their phones | QuickBooks Online users who need sales orders |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: inFlow and SOS Inventory. How we grade
Price against what you get
inFlow starts at $99 a month and scores 3.0 out of 4 on features, ease of use and platforms. SOS Inventory starts at $69.95 a month and scores 2.7.
inFlow scores higher, and starts $29.05 a month higher: the question is whether the extra is worth that to you. Of the other inventory management tools on the chart, 1 scores higher than inFlow for less, and 2 score higher than SOS Inventory for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- inFlow starts at $99 per month, billed annually ($129 billed monthly). SOS Inventory starts at $69.95 per month for up to 2 users, billed monthly.
- Only inFlow lists Windows and Android apps.
At a glance
| inFlow | SOS Inventory | |
|---|---|---|
| Pricing | Free trial | Free trial |
| Starts at | $99 per month, billed annually ($129 billed monthly) | $69.95 per month for up to 2 users, billed monthly |
| Free plan | None | None |
| Free trial | 14-day free trial, no credit card required | 14-day free trial |
| Web | ||
| Windows | ||
| iOS | ||
| Android | ||
| Made by | Archon Systems Inc. | SOS Inventory Software LLC |
| Price read from | inflowinventory.com | sosinventory.com |
| Checked | Oct 18, 2026 | Oct 18, 2026 |
Who each one suits
inFlow
- Small wholesalers and distributors that sell to trade customers
- Field service and installer businesses tracking stock in vans and job sites
- Teams that want barcode scanning from ordinary phones
SOS Inventory
- QuickBooks Online users who need sales orders and real inventory
- Small manufacturers that need work orders and job costing
- Distributors tracking serial or lot numbers across warehouses
Worth knowing
inFlow
- Core, Pro and Max require a one-time $499 onboarding package; it is optional only on Lite.
- Extra team members cost $29 a month each, and extra locations on Lite and Core cost $39 a month each.
- Lot numbers, serial numbers and the B2B portal are $39 a month each and the API is $49 a month on lower plans.
- inFlow Manufacturing is priced separately from $169 a month billed annually; Stockroom alone is $69 a month billed annually.
SOS Inventory
- It is built around QuickBooks Online and lists compatibility with the Essentials, Plus and Advanced plans.
- Extra users cost $25 a month each ($250 a year on annual plans), and external connections such as Shopify cost $25 a month each.
- Companion is limited to one location and has no serial or lot tracking or barcoding.
- The native app is for iPhone and iPad; no Android app is listed.
Key features
inFlow
- Stock across locations
- Real-time stock levels across warehouses, stores and job sites, with transfers, sublocations and stock counts.
- Sales, invoicing and purchasing
- Quotes, sales orders, invoices, purchase orders and receiving in one system, with reorder points to restock in time.
- Barcode scanning and labels
- Scan with the iOS and Android apps or inFlow's own smartphone scanner, and print barcode labels on its portable printers.
- Showroom B2B portal
- An online ordering portal for trade customers on your own domain, with abandoned cart notices, included from Pro.
- Lots, serials and access rights
- Lot, batch, expiry and serial number tracking, and access limits by location or sales rep with purchase-order approvals.
- Windows app and integrations
- A Windows app beside the web app, and connections to Shopify, Amazon, WooCommerce, QuickBooks Online, Xero and Zapier.
SOS Inventory
- Sales orders for QuickBooks
- Create sales orders, full or partial shipments and partial invoices that sync to QuickBooks Online, which has no sales orders of its own.
- Pick, pack and ship
- ShipStation and UPS integrations on every plan, and pick tickets from sales orders or invoices from the Plus plan up.
- Serials, lots and barcodes
- Serial and lot number tracking and barcodes in several formats from the Plus plan, with transfers between unlimited locations.
- Assemblies and manufacturing
- Assemblies on every plan, contract manufacturing from Plus, and work orders, job costing and process manufacturing on Pro.
- Costing and valuation
- FIFO, LIFO or weighted average valuation, multiple currencies and customizable forms and dashboards on every plan.
- Store and app connections
- Connects to Shopify, BigCommerce, PayPal and FTP sites as paid external connections, plus Zapier and an iPhone and iPad app.
Plans
inFlow
Lite$99
per month, billed annually ($129 billed monthly)
2 team members and 1 location with no sublocations. Unlimited products, orders and integrations; the onboarding package is optional.
Core$299
per month, billed annually ($379 billed monthly)
5 team members and 5 locations, with lot and serial numbers, API and B2B portal as add-ons. Requires a one-time $499 onboarding package.
Pro$499
per month, billed annually ($629 billed monthly)
10 team members, unlimited locations, advanced access rights, the API and the Showroom B2B portal included. Requires $499 onboarding.
Max$699
per month, billed annually ($879 billed monthly)
20 team members, lot and serial numbers included, single sign-on and support calls over Zoom. Requires $499 onboarding.
SOS Inventory
Companion$69.95
per month for up to 2 users, billed monthly
$699.50 a year billed annually. Sales orders, assemblies, QuickBooks Online sync and one location, with room for one paid external connection.
Plus$139.95
per month for up to 3 users, billed monthly
$1,399.50 a year billed annually. Adds unlimited locations, serial and lot numbers, barcoding, pick tickets and contract manufacturing.
Pro$194.95
per month for up to 5 users, billed monthly
$1,949.50 a year billed annually. Adds work orders, job cost accounting, process and variable-yield manufacturing and a customer portal.
Ways to pay less
inFlow
- Annual discount
Save 20% with annual billing
Paying yearly cuts Lite from $129 to $99 a month, Core from $379 to $299, Pro from $629 to $499 and Max from $879 to $699.
- Other savings
Hardware credit for new customers
A one-time inFlow Shop credit toward scanners and printers: $100 on Lite, $250 on Core, $500 on Pro and $1,000 on Max, as shown with annual billing.
SOS Inventory
- Annual discount
Two months free with annual billing
Paying yearly costs $699.50 for Companion, $1,399.50 for Plus and $1,949.50 for Pro, ten times the monthly price.
