Softwr

Inventory · head to head

Fiix vs SOS Inventory

Fiix logo

Fiix

Inventory

AI-powered maintenance management

From
Free
Rated
-
Full reviewWebsite
SOS Inventory logo

SOS Inventory

Inventory

Inventory management for QuickBooks Online

From
$69.95/month
Rated
-
Full reviewWebsite

The short version

  • Only Fiix has a free tier, so it costs nothing to try first.
  • Each has a real cost: Fiix integrations, SSO, audit trail and database export are all Enterprise only, which carries no published price; SOS Inventory the Companion plan at $69.95 per month is limited to a single location and 1 custom field
  • They diverge on capability: Fiix covers Work order management, SOS Inventory covers Lot tracking.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Fiix and SOS Inventory actually diverge.

Attributes where Fiix and SOS Inventory differ
AttributeFiixSOS Inventory
Starting priceFree$69.95/month
Free tierYesNo
PlatformsWeb, Mobile app, Cloud-basedWeb, Cloud-based
Founded20082011

Identical on both: pricing model (subscription), user rating (Not yet rated), category (Inventory).

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 Fiix

  • Work order management
  • Parts inventory
  • Predictive maintenance
  • AI insights
  • SAP
  • Oracle
  • Microsoft Dynamics
  • Salesforce

Only in SOS Inventory

  • Lot tracking
  • Serial numbers
  • Manufacturing
  • Multi-location
  • QuickBooks Online
  • Shopify
  • BigCommerce
  • ShipStation

Both cover

  • Web support
  • Cloud-based support

What people use each for

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

Fiix

  • Maintenance management and work order tracking for equipmentnot SOS Inventory
  • Scheduling preventive maintenance and managing spare parts inventorynot SOS Inventory

SOS Inventory

  • Inventory managementnot Fiix
  • Job costingnot Fiix
  • Manufacturing automationnot Fiix

Where each one falls short

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

Fiix

  • Integrations, SSO, audit trail and database export are all Enterprise only, which carries no published price
  • The $75 Professional plan still excludes e signatures, failure codes and any integration
  • The $45 Basic plan excludes multi site management, purchasing and advanced analytics
  • The free plan is limited in users and withholds almost every feature beyond basic work orders
  • Assets are unlimited on every tier, so the ladder is entirely about features rather than scale

SOS Inventory

  • The Companion plan at $69.95 per month is limited to a single location and 1 custom field
  • Serial and lot number tracking, barcoding and unlimited locations require the Plus plan at $139.95 per month
  • Phone support is excluded from the Companion plan
  • Job costing, advanced manufacturing and the customer portal require the Pro plan at $194.95 per month
  • Each plan includes only 2 to 5 users and additional users cost $25 each per month
  • The 2 months free discount requires paying a year up front

Pricing, plan by plan

Fiix

Free
  • FreeFree
    • Basic CMMS
    • 3 users
    • Community support
  • Basic$45/month
    • Full CMMS
    • Reporting
    • Email support
  • Professional$75/month
    • AI features
    • Integrations
    • Priority support

SOS Inventory

$69.95/month
  • Companion$69.95/month
    • Basic inventory management
    • 2 included users
    • Additional users $25/month each
  • Plus$139.95/month
    • Labeled most popular
    • Unlimited locations
    • Serial and lot tracking
  • Pro$194.95/month
    • Advanced automation
    • Job costing
    • Advanced manufacturing

Which should you pick?

Choose Fiix if

  • You need work order management.
  • You want to start without paying.
  • You work on Web, Mobile app, Cloud-based.
  • You also want parts inventory.
Fiix review

Choose SOS Inventory if

  • You need lot tracking.
  • You work on Web, Cloud-based.
  • You also want serial numbers.
SOS Inventory review

Questions people ask

Is Fiix or SOS Inventory better?
Neither clearly leads. Fiix starts at Free and SOS Inventory at $69.95/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Fiix or SOS Inventory?
Fiix has a free tier; the other does not. Paid plans start at Free for Fiix and $69.95/month for SOS Inventory.
Does Fiix or SOS Inventory run on more platforms?
Fiix runs on Web, Mobile app, Cloud-based. SOS Inventory runs on Web, Cloud-based.
Can I use Fiix for free?
Yes. Fiix has a free tier, so you can try it without paying. SOS Inventory starts at $69.95/month.
What is Fiix best used for?
Fiix is most often used for maintenance management and work order tracking for equipment, scheduling preventive maintenance and managing spare parts inventory. Of those, maintenance management and work order tracking for equipment and scheduling preventive maintenance and managing spare parts inventory are not what SOS Inventory is typically brought in for.
What can Fiix do that SOS Inventory cannot?
Fiix covers Work order management, Parts inventory, Predictive maintenance, AI insights. SOS Inventory covers Lot tracking, Serial numbers, Manufacturing, Multi-location. Both handle Web support, Cloud-based support.

Answered from the vendors’ own pages

Fiix: What is included in Fiix's free plan?

The free plan includes 25 active preventive maintenance tasks, unlimited work orders, basic asset management, and mobile app access.

Source
SOS Inventory: How much does SOS Inventory cost?

SOS Inventory offers monthly plans from $69.95 for Companion to $194.95 for Pro. Annual billing saves approximately two months of fees. Additional users cost $25/month, and external connections are $25/month each.

Source
Fiix: What is the price difference between Basic and Professional plans per user?

Basic costs $45 per user per month, while Professional costs $75 per user per month. Professional is marked as the most popular tier.

Source
SOS Inventory: Does SOS Inventory offer a free trial?

Yes, SOS Inventory offers 14 days to explore its full range of features. Users can upgrade or downgrade plans easily through account settings.

Source
Fiix: What unique features does the Professional plan add compared to Basic?

Professional includes multi-site management, AI insights, and advanced analytics in addition to the unlimited preventive maintenance and reports included in Basic.

Source
SOS Inventory: What is the difference between SOS Inventory plans?

Companion includes 2 users and basic management. Plus is marked most popular and adds unlimited locations and lot tracking with 3 users. Pro adds advanced automation and manufacturing with 5 users.

Source
Fiix: Are there flexible payment options for Fiix subscriptions?

Yes, Fiix offers both month-to-month subscriptions and annual subscription plans with the ability to upgrade anytime. No additional setup or hardware fees apply.

Source
Fiix: What add-on licenses are available, and how are they priced?

Fiix offers Lite License (Operator Access) for limited frontline team access and Fiix MAX AI assistant (requires Professional or Enterprise plan). Pricing for both requires contacting sales.

Source
Share

Related pages

More on Fiix

More on SOS Inventory

Keep looking

Other head to heads