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E-Commerce · head to head

Inventory Lab vs Square

Inventory Lab logo

Inventory Lab

E-Commerce

FBA inventory management made simple

From
Free
Rated
-
Full reviewWebsite
Square logo

Square

E-Commerce

Powering the economy

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Inventory Lab inventoryLab is no longer sold standalone and is now bundled into Three Colts' Seller 365 plans starting at $69 per month for a single user, rising to $199 per month for the Pro tier; Square plus plan pricing not specified in documentation
  • They diverge on capability: Inventory Lab covers FBA inventory tracking, Square covers Payment processing.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Inventory Lab and Square actually diverge.

Attributes where Inventory Lab and Square differ
AttributeInventory LabSquare
Pricing modelsubscriptionfreemium
PlatformsWebPOS (Mobile app), Web
Founded20112009

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (E-Commerce).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Inventory Lab

  • FBA inventory tracking
  • Repricing automation
  • Price monitoring
  • Sales analytics
  • Profit calculations
  • Supplier management
  • Alerts and notifications
  • Forecasting tools

Only in Square

  • Payment processing
  • Point of sale
  • Invoicing
  • Payroll
  • Banking
  • QuickBooks
  • WooCommerce
  • Wix

What people use each for

The jobs each tool is most often brought in to do.

Inventory Lab

  • Amazon seller managementnot Square
  • multi-channel resellingnot Square
  • inventory trackingnot Square

Square

  • Accept payments with all-in-one POS applicationnot Inventory Lab
  • Online ordering and basic website creationnot Inventory Lab
  • Invoicing and appointment bookingnot Inventory Lab
  • Staff scheduling and loyalty programmesnot Inventory Lab

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Inventory Lab

  • InventoryLab is no longer sold standalone and is now bundled into Three Colts' Seller 365 plans starting at $69 per month for a single user, rising to $199 per month for the Pro tier
  • Multichannel listing requires the separate UniCon add-on, priced from $49 to $449 per month depending on tier

Square

  • Plus plan pricing not specified in documentation
  • Processing fees differ by tier but exact rates not detailed
  • Free plan pricing mentioned but specific features for Plus unclear
  • Text marketing charged at 3¢ per message after first 500 included

Pricing, plan by plan

Inventory Lab

Free
  • Standard$69/month
    • access to 10 tools
    • 1 user account
    • designed for independent resellers
  • Teams$129/month
    • all 10 tools
    • up to 10 users
    • shared workflows and collaboration
  • Pro$199/month
    • all pro versions of 10 tools
    • up to 10 users
    • premium support under 30-minute response time
  • Enterprise$null/custom
    • more than 10 users
    • custom terms

Square

Free
  • FreeFree
    • Accept payments with all-in-one POS app
    • Online site builder (ordering profiles, basic websites, online stores, booking sites)
    • Item library and inventory tracking
  • Plus$null/mo
    • All Free plan features
    • Advanced POS features for food, retail, and appointments
    • Lower processing fees on card transactions

Which should you pick?

Choose Inventory Lab if

  • You need fba inventory tracking.
  • You want to start without paying.
  • You also want repricing automation.
Inventory Lab review

Choose Square if

  • You need payment processing.
  • You want to start without paying.
  • You work on POS (Mobile app), Web.
  • You also want point of sale.
Square review

Questions people ask

Is Inventory Lab or Square better?
Neither clearly leads. Inventory Lab starts at Free and Square at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Inventory Lab or Square?
Inventory Lab starts at Free and Square at Free.
Does Inventory Lab or Square run on more platforms?
Inventory Lab runs on Web. Square runs on POS (Mobile app), Web.
Can I use Inventory Lab for free?
Both have a free tier, so you can try either at no cost before committing.
What is Inventory Lab best used for?
Inventory Lab is most often used for amazon seller management, multi-channel reselling, inventory tracking. Of those, amazon seller management and multi-channel reselling are not what Square is typically brought in for.
What can Inventory Lab do that Square cannot?
Inventory Lab covers FBA inventory tracking, Repricing automation, Price monitoring, Sales analytics. Square covers Payment processing, Point of sale, Invoicing, Payroll.

Answered from the vendors’ own pages

Inventory Lab: What is the free trial period for Inventory Lab?

Inventory Lab offers a 14-day free trial, with bonus days awarded when connecting Amazon accounts.

Source
Square: Does Square offer a free plan?

Yes, Square's free plan includes an all-in-one POS app, online site builder, item library and inventory tracking, invoicing, appointment scheduling, staff calendars, and checking and savings account access. No subscription fees are charged.

Source
Inventory Lab: Can I save money on Inventory Lab with annual billing?

Yes, annual billing saves money: Standard saves $48/year, Teams saves $120/year, and Pro saves $192/year compared to monthly billing.

Source
Square: What does Square Plus add compared to the free plan?

Square Plus adds advanced POS features for food and retail, lower processing fees on card transactions, custom loyalty programs, unlimited email marketing campaigns, text messaging, and staff scheduling and attendance tracking.

Source
Inventory Lab: Is there an add-on to use Inventory Lab on channels beyond Amazon?

Yes, the UniCon multichannel add-on is available starting at $49/month for expanding beyond Amazon.

Source
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