TL;DR: Every tool here has a free tier you can genuinely operate on, but the free tiers break in different places. Stockpile by Canvus is the only one with no item, user, or location cap — and no barcode scanning at all. Square Inventory gives unlimited free item tracking, with barcode scanning on supported iOS devices, if you already run Square POS — but moving stock between locations requires a paid plan billed per location. Sortly’s free plan stops at 100 items and one user. Zoho Inventory’s free plan stops at 50 orders a month with one user and one location. Odoo offers the deepest warehouse model and the slowest start. The cost table further down shows what each one costs a three-person team in year one and year two, because two of them get significantly more expensive at renewal.
If you run a small business and need to track stock, the gap between a free tool and an expensive surprise usually comes down to three limits that vendors do not put on the front of the pricing page: how many items you can hold, how many people can log in, and whether stock movement between locations costs extra. This comparison is built for owners who have narrowed the field and now need to know exactly where each free tier ends. If you are not ready to pay for software at all, our barcode scanner and Excel inventory spreadsheet setup is a lighter workflow worth testing first, and our spreadsheet vs. software guide covers the signals that you have outgrown one.
How we picked these five, and what we could and could not check
Every tool here has a free tier you can operate on indefinitely, not a disguised trial. We excluded Cin7, Fishbowl, and Lightspeed Retail because their entry pricing starts well above the budget range this comparison targets, and their free offerings — where they exist at all — are time-limited trials.
We compared the five against the work a small business actually repeats every week: receiving stock, checking levels, scanning or entering SKUs, counting, setting reorder alerts, and handling more than one storage location. The goal was not to identify the most advanced inventory system. It was to find where each free tier stops working and what the next step costs.
What this comparison is based on. This is a documentation-based evaluation. We did not run hands-on trials of these platforms, and nothing below should be read as observed behavior in a live account. Plan limits, prices, and feature gating were checked against vendor pricing pages, vendor plan-comparison tables, and vendor support documentation in July 2026. Where a claim could not be confirmed from a vendor’s own published material, we have left it out rather than repeating it from a secondary source.
If you want to weigh these tools against criteria specific to your business rather than ours, our software evaluation scorecard turns pricing, setup effort, barcode needs, and workflow fit into a repeatable scoring sheet.
Where each free tier stops working
The most common failure mode is adopting a free tool without checking which ceiling you will hit first. For a solo operator with a photo-heavy catalog, the item cap arrives first. For an online seller, the monthly order cap arrives first. For a two-location retailer, the constraint is not a cap at all — it is whether moving stock between locations is a free feature or a paid one.
| Tool | Free tier ceiling | Camera barcode scanning on free | Multi-location on free | What breaks first |
|---|---|---|---|---|
| Sortly | 100 items, 1 user | Yes | Not offered on free | Item count, then the second login |
| Zoho Inventory | 50 orders/month, 1 user, 1 location | No documented free-plan scanning; barcode generation is listed from Premium | No — Free includes 1 location | Order volume, then a second user or location |
| Square Inventory | Unlimited items, $0 per location | Yes, using the built-in camera on supported iOS devices | Separate stock per location yes; transfer orders no | The moment you need transfer orders |
| Stockpile by Canvus | Unlimited items, users, and locations | No — Canvus lists barcode scanning as a future separately branded add-on | Yes, included | No numeric cap, but stock movements remain manual |
| Odoo Inventory | One App Free: one app, unlimited users | Installing the separate Barcode app ends the One App Free setup | Yes | The second Odoo app you enable |
Two rows in that table deserve more than a cell. Square is the only tool here that separates “having multiple locations” from “moving stock between them,” and that distinction costs money. Odoo is the only one where the free path itself has two versions that behave differently. Both are covered below.
How each tool fits a small operation
Sortly: a one-person visual catalog that outgrows itself quickly
Sortly is built around identifying items by sight rather than by SKU. Each entry supports a thumbnail image, custom folders, and notes, which suits a catalog where the person counting stock recognizes the box before they recognize the code — seasonal retail, equipment, supplies, samples. Scanning runs through the phone camera, so no dedicated hardware is needed. Our Sortly review covers the product in more depth.
The free plan holds 100 unique items and one user license. Sortly counts a unique item as a distinct SKU or product line, so quantities of the same item do not consume the allowance — a boutique with 100 styles and 900 units of stock still fits. What does not fit is a second person. The moment someone else needs to update stock, the free plan is over.
Paid tiers step up in both dimensions at once, which is what makes the upgrade expensive. Advanced is $49 per month month-to-month and covers 500 items and 2 user licenses. Ultra is $149 per month and covers 2,000 items and 5 user licenses. There is no tier between them, so a three-person team pays the Ultra rate even if it only needs 300 items. Label creation is also tiered: creating QR labels starts at Advanced, and creating barcode labels starts at Ultra.
The free tier does not include multi-location tracking, so a shop with a storefront and a separate storage unit cannot segregate counts without upgrading. Sortly also has no POS or accounting integration on the free tier, which means stock movements recorded in the app have to be reconciled against sales data by hand.
Zoho Inventory: organized around orders, not shelves
Zoho Inventory is the only tool here whose free-tier limit is measured in orders rather than items, and that tells you who it is for. It assumes you are selling across channels and thinking in fulfillment stages. If your inventory problem is “what did I sell and what has shipped,” this fits. If your problem is “what is on the shelf,” the other four are a closer match.
The free plan allows 50 orders per month with one user and one location. Fifty orders is well under two sales a day, combined across every channel you sell on, so this ceiling arrives fast for anyone with real traction. The Standard plan raises it to 500 orders per month at $29 per month on annual billing, or $39 month-to-month.
The structural advantage is the rest of the Zoho suite. Zoho Inventory connects natively with Zoho Books and Zoho CRM, so inventory, accounting, and customer records can remain inside the same vendor ecosystem. Zoho Inventory is not a POS, so a brick-and-mortar business still needs a separate checkout system alongside it.
Zoho’s current US comparison lists the Free plan with 1 user and 1 location, while Standard includes 3 users and 2 locations. That means the three-person, two-location business modeled below fits Standard without an extra seat or location add-on. Barcode generation, stock counting, serial number tracking, and batch tracking are listed from Premium rather than Free or Standard.
Square Inventory: free tracking that stops at the loading dock
Square Inventory is the strongest free option in this comparison — provided you already take payments through Square, and provided you never need to move stock between locations. Both conditions matter, and the second one is where most comparisons of this tool go wrong.
The genuinely free part is substantial. There is no item limit, which separates Square from Sortly’s 100-item cap immediately. On supported iOS devices, the Square POS app in retail mode can scan GTIN barcodes through the built-in camera, allowing an iPhone or iPad to serve as both register and scanner. Low-stock alerts, barcode label printing, automatic SKU generation, and stock intake are included at no monthly cost, and Square charges $0 per month per location on the Free plan, so having several locations costs nothing on its own.
Transfer orders are the exception. Creating a transfer order — the bulk workflow for shipping stock between locations with draft, pending, partially received, and completed stages — requires Square for Retail Plus or Premium. Square’s current US support document explicitly lists both tiers, making Plus the lowest published Retail plan for this workflow. At $49 per month per location, two locations cost $1,176 per year before processing fees, hardware, and taxes.
⚠ The per-location catch: Square’s paid plans are billed per location, not per account. Plus is $49 per month per location and Premium is $149 per month per location, so a second store doubles the subscription — source: Square — retail pricing.
Beyond transfers, the paid tiers also hold vendor profiles, purchase order management, unit costs and cost-of-goods-sold reporting, the inventory counting tool, and aging inventory reports. The free tier’s reporting is a current-state view, so a business trying to optimize reorder timing exports to a spreadsheet. And because inventory here is an extension of the payment system, a merchant using a different processor gets very little standalone value from it.
Stockpile by Canvus: no ceilings, no scanner
Stockpile is the only tool in this comparison with no cap on items, users, or locations, and it stays that way. Canvus states that Stockpile is and will remain free to use, funded through separately branded paid add-ons and possibly in-app advertising rather than through subscription tiers. Barcode scanning appears on that add-on roadmap but does not exist in the product today.
What you get is SKU and UPC fields, basic stock-level reporting, and multi-location separation, all in a browser. What you do not get is any way to update stock other than typing. There is no camera scanning workflow and no POS or ecommerce integration, so adjustments have to be reconciled against sales records by hand.
That trade is worth taking in one specific situation: a large catalog that changes slowly. A workshop tracking parts, a nonprofit tracking donated goods, an office tracking equipment across three rooms. If stock turns over daily and the count happens on the floor, the absence of scanning will cost more in labor than any subscription would. If you are in that middle ground where manual entry is tolerable but you still want a reorder warning, our guide to low stock alerts in Google Sheets covers a comparable manual workflow you may already have the tools for.
Odoo Inventory: the deepest warehouse model and the hardest to start
Odoo’s distinctive strength here is its double-entry stock model combined with lot, serial number, and expiration-date workflows. Those traceability features are not unique to Odoo, however: Zoho Inventory Premium also supports serial numbers, batch tracking, and expiry dates. Odoo is the stronger candidate when the warehouse model and deployment control matter more than a simple order dashboard.
The complication is that “free Odoo” describes two different products. The One App Free plan gives you one Odoo app online, hosted, with unlimited users and no server to manage. The self-hosted Community Edition gives you the open-source codebase and more control, in exchange for provisioning a server and owning its updates, backups, and security patching. These are not two routes to the same place.
Barcode scanning is where the free paths need careful separation. Odoo documents Barcode as a separate application. On a One App Free database, Odoo states that installing any additional application triggers a 15-day trial; without a paid subscription, the database becomes inaccessible when that trial ends. Odoo’s public documentation does not establish the same availability for self-hosted Community Edition, where third-party community modules may also change the answer. Verify the exact Community deployment and module set before treating barcode workflows as included.
⚠ The second-app trap: One App Free covers exactly one Odoo app. Adding Barcode, Accounting, CRM, or another application creates a multi-app setup. Odoo states that installing an additional application on a One App Free database triggers a 15-day trial and then requires a paid subscription to remain accessible — source: Odoo — One-App-Free trial rule.
For the paid path, Odoo’s current US annual pricing lists Standard at $24.90 per user per month for the first 12 months and $31.10 afterward. Assuming all three users are added with the initial order, that produces a first-year subscription of $896.40 and a renewal-year cost of $1,119.60 before taxes or implementation services. Odoo also sets prices by region, so these US figures do not transfer to other markets.
What a three-person team actually pays in year one and year two
Single-year cost comparisons flatter two of these tools, because the introductory discount that makes year one cheap does not repeat. The table below models a specific business rather than a generic one, so you can adjust it against your own numbers.
Assumptions: three people who each need their own login, roughly 300 unique items, about 60 orders per month, two stock locations, US pricing, annual billing where a discount is offered, checked July 2026. Payment processing fees, hardware, taxes, and add-ons are excluded.
| Tool | Plan this team lands on | Year 1 | Year 2 | Why the year-2 number changes |
|---|---|---|---|---|
| Sortly | Ultra — Advanced covers only 2 users | $888 | ~$1,430 | The 50% introductory discount applies to the first year only; annual plans then carry a 20% discount off the $149/month rate |
| Zoho Inventory | Standard, annual billing | $348 | $348 | Standard includes the modeled 3 users and 2 locations; no introductory discount is shown |
| Square Inventory — core tracking only | Free | $0 | $0 | Unchanged as long as transfer orders and purchase orders are not required |
| Square Inventory — with transfer orders, 2 locations | Plus, billed per location | $1,176 | $1,176 | $49/month × 2 locations × 12; a third location adds $588/year |
| Stockpile by Canvus | Free | $0 | $0 | Canvus states that the core Stockpile product remains free |
| Odoo Inventory — Inventory app only | One App Free | $0 | $0 | Holds only while Inventory remains the single enabled app |
| Odoo Inventory — after a second app | Standard, 3 users | ~$896 | ~$1,120 | The $24.90 introductory user rate changes to the regular $31.10 annual-billing rate after 12 months |
Two rows in that table share a pattern worth naming: the first-year price is a promotion, not the price. Sortly’s Ultra plan costs $888 for the first year and roughly $1,430 for the second — a 61% increase for exactly the same plan. Odoo moves from about $896 to about $1,120 on the same three seats. Neither is a hidden fee; both are stated in the vendors’ own pricing footnotes. They are simply invisible in any comparison that shows year one only, which is most of them.
Square has two sharply different outcomes. Core inventory remains free, but two locations needing transfer orders cost $1,176 per year on Plus. That is higher than Sortly’s first year and Odoo’s paid first year, slightly higher than Odoo’s regular renewal cost, but lower than Sortly’s roughly $1,430 renewal. A three-location Square retailer reaches $1,764 per year.
Odoo’s paid cost is driven by headcount rather than catalog size. Three initial users cost about $896 in the first year and about $1,120 after the introductory period. At the regular $31.10 annual-billing rate, a fourth user adds about $373 per year regardless of whether the business tracks 300 items or 3,000. Sortly’s Ultra plan, by contrast, absorbs two additional users at no extra cost up to its five-seat limit.
Which constraint should decide it for you
You already run Square POS and have one location. Use Square Inventory and stop evaluating. Unlimited items, iOS camera scanning, and low-stock alerts at $0 per month is not a starting point you can improve on by paying someone else. Revisit the decision only when you open a second location or need purchase orders.
You have a large catalog that changes slowly and nobody needs to scan. Stockpile. It is the only tool that will never present you with a cap or an invoice. Accept that every movement is typed, and budget the labor rather than the subscription.
You are one person with fewer than 100 items and you identify stock by sight. Sortly Free genuinely fits, and the camera scanning works on existing barcodes and QR codes without any upgrade. Go in knowing the exit price: the moment a second person needs access, you are choosing between $49 and $149 per month, and the renewal costs more than the first year.
You sell across Amazon, Shopify, and eBay. Zoho Inventory is the most direct fit in this group for channel-based order flow, and it connects with Zoho Books and Zoho CRM inside the same vendor ecosystem. The Free plan’s 50-order ceiling will not last at the modeled volume, but Standard covers 500 orders per month, 3 users, and 2 locations for $348 per year on annual billing.
You need batch, serial number, or expiration-date tracking. Compare Odoo with Zoho Inventory Premium rather than assuming Odoo is the only option. Odoo is the better fit for a warehouse-centered double-entry stock model or a deployment you want to control. Zoho Premium is the simpler SaaS path when order channels and the Zoho business suite matter more. If barcode-driven warehouse work is essential, remember that adding Odoo Barcode ends the One App Free setup.
None of these describe you. Start with Stockpile. It is the only option that cannot fail on a limit, which makes it the cheapest way to learn what your real constraint is before you pay to solve the wrong one.
Three steps before you move your catalog
Whichever tool you pick, the import is where the time goes. Work in this order.
- Export and clean your current data first. Pull your existing list into a CSV with columns for item name, SKU, quantity on hand, unit cost, and category. Remove duplicates and settle on one SKU format before you import anything — fixing a naming convention after import is far more work than fixing it in a spreadsheet. Our inventory management checklist covers what your workflow needs to capture before you commit to a structure.
- Import 10 to 20 items and run the full loop. Import, scan if applicable, receive, fulfill, and confirm that a reorder alert fires at the threshold you set. A pilot this small surfaces field-mapping errors, duplicate SKUs, and mobile problems while they still cost minutes. This step matters most in Odoo, where quantity and location entries sit inside a double-entry model and are correspondingly awkward to unwind.
- Only then move the full catalog. Square users can often skip the import entirely, since items already in the Square POS catalog are already in Square Inventory. For a step-by-step Sortly implementation, follow our Sortly inventory setup guide.
Sources
- Sortly — Pricing — https://www.sortly.com/pricing/
- Sortly — Features — https://www.sortly.com/features
- Zoho Inventory — Pricing — https://www.zoho.com/inventory/pricing
- Zoho Inventory — Plan comparison — https://www.zoho.com/us/inventory/pricing-comparison/
- Zoho Inventory — Batch Tracking — https://www.zoho.com/us/inventory/help/advanced-inventory-tracking/batch-tracking.html
- Square — Retail POS pricing and plans — https://squareup.com/us/en/point-of-sale/retail/pricing
- Square — Create and manage transfer orders — https://squareup.com/help/us/en/article/8300-create-transfer-orders-with-square-for-retail
- Square — Automate item creation by scanning barcodes — https://squareup.com/help/us/en/article/7992-automate-item-creation-with-square-for-retail
- Square — Inventory management — https://squareup.com/us/en/software/inventory
- Stockpile by Canvus — Signup and free-use terms — https://www.thecanvus.com/signup/
- Odoo — Pricing — https://www.odoo.com/pricing
- Odoo — Barcode documentation — https://www.odoo.com/documentation/19.0/applications/inventory_and_mrp/barcode.html
- Odoo — After-Sales services (One-App-Free trial note) — https://www.odoo.com/documentation/19.0/applications/services/helpdesk/advanced/after_sales.html
Disclaimer
This guide is for general informational purposes only and does not constitute professional accounting, tax, legal, financial, procurement, or operations advice. Plan limits, pricing, feature gating, and availability were reviewed against publicly available vendor pricing pages, plan-comparison tables, and support documentation in July 2026 and may change without notice. Check the official vendor page before paying for any plan.
Last reviewed: July 2026 by the PickrTech editorial team. Prices and plan limits verified against US vendor pricing, plan-comparison, and support pages in July 2026.
