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Manufacturing · head to head

Litmus Edge vs OpenBOM

Litmus Edge logo

Litmus Edge

Manufacturing

Industrial edge platform that collects, normalises and forwards OT data to cloud and enterprise systems

From
$1500/month
Rated
-
Full reviewWebsite
OpenBOM logo

OpenBOM

Manufacturing

Cloud bill of materials and part catalogue management priced per seat, with free read-only users

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only OpenBOM has a free tier, so it costs nothing to try first.
  • Each has a real cost: Litmus Edge pricing is by site and data point, so a large tag count at one plant can cost more than a modest tag count spread over several, which is the opposite of how most manufacturers plan a rollout.; OpenBOM pricing has three axes, editing seats plus data record count plus per-seat CAD add-ins at $25 to $45 each, so the real annual cost is well above the advertised per-seat figure.
  • They diverge on capability: Litmus Edge covers Prebuilt driver library, OpenBOM covers Multi-level BOMs.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Litmus Edge and OpenBOM actually diverge.

Attributes where Litmus Edge and OpenBOM differ
AttributeLitmus EdgeOpenBOM
Starting price$1500/monthFree
Pricing modelPer site by data point countPer user per month
Free tierNoYes
PlatformsLinux, Docker, Kubernetes, Cloud, On-premiseWeb, Windows, macOS, API

Identical on both: user rating (Not yet rated), category (Manufacturing).

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 Litmus Edge

  • Prebuilt driver library
  • Unified data model
  • Litmus Edge Manager
  • Edge applications
  • Store and forward
  • Cloud and broker outputs

Only in OpenBOM

  • Multi-level BOMs
  • Part catalogue
  • CAD add-ins
  • Change management
  • Free read-only users
  • REST API

What people use each for

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

Litmus Edge

  • A manufacturer with twenty plants and five PLC brands that needs one data acquisition standard rather than twenty bespoke integrationsnot OpenBOM
  • Feeding a cloud data warehouse or lakehouse with normalised production data without asking the controls team to write cloud connectorsnot OpenBOM
  • Retrofitting data collection onto old CNC machines and robots where the protocol support is the hard part, not the analyticsnot OpenBOM
  • Adding local buffering and computation at sites with unreliable WAN links so cloud outages do not create gaps in production historynot OpenBOM

OpenBOM

  • A hardware startup replacing a shared BOM spreadsheet before its first contract manufacturing runnot Litmus Edge
  • A contract manufacturer sharing structured BOMs with customers who should see but not edit themnot Litmus Edge
  • An electronics team pulling BOMs straight out of Altium and mechanical CAD instead of retyping themnot Litmus Edge
  • A small manufacturer that needs part numbering and revision discipline but cannot fund a PLM projectnot Litmus Edge

Where each one falls short

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

Litmus Edge

  • Pricing is by site and data point, so a large tag count at one plant can cost more than a modest tag count spread over several, which is the opposite of how most manufacturers plan a rollout.
  • The entry package sits around $1,500 per month, an awkward number for a single-site pilot given that the product is infrastructure with no visible output of its own until something downstream consumes it.
  • Litmus does no analytics, so the business case always depends on a second purchase; the platform on its own produces no result a plant manager can see.
  • Full pricing beyond the entry tier is not published and the Growth and Scale packages are quoted, so scaling costs are unknown at the point you commit to the architecture.
  • A capable controls team can approximate a single-site deployment with an open-source broker and a driver gateway for a fraction of the cost, so the value case depends entirely on how many sites you are managing centrally.

OpenBOM

  • Pricing has three axes, editing seats plus data record count plus per-seat CAD add-ins at $25 to $45 each, so the real annual cost is well above the advertised per-seat figure.
  • Paying yearly nearly halves the seat price, from $55 to $30 and $165 to $90, so monthly billing carries an unusually heavy penalty for teams that want flexibility.
  • Change management, revision control and CAD file management are absent from the entry Team plan, so the cheapest tier is a catalogue rather than a working PLM.
  • It lacks the approval workflows, effectivity dating and audit depth that regulated medical and aerospace suppliers need, so companies pursuing ISO 13485 or AS9100 typically migrate away.
  • Record count is metered separately and a large imported part library can push a small team into a higher data tier without adding a single user.

Pricing, plan by plan

Litmus Edge

$1500/month
  • Foundation$1500/month
    • Entry package sized by site count and data points
    • Core driver library and edge runtime
    • Store and forward to cloud and brokers
  • Growth$undefined/month
    • Larger site and data point allowance
    • Litmus Edge Manager fleet management
    • Priced on application
  • Scale$undefined/month
    • Enterprise multi-site deployment
    • Higher data point ceilings and support tier
    • Priced on application

OpenBOM

Free
  • FreeFree
    • Up to 2,000 data records
    • Basic BOM and catalogue management
    • Non-commercial and educational use
  • Professional Team$55/month
    • $30 per seat per month billed yearly
    • BOM management, part catalogue, inventory
    • RFQ and purchase orders
  • Company$165/month
    • $90 per seat per month billed yearly
    • Everything in Team
    • CAD file management and revision control
  • Enterprise$undefined/year
    • Single sign-on
    • Custom integrations
    • Private or custom hosting

Which should you pick?

Choose Litmus Edge if

  • You need prebuilt driver library.
  • You work on Linux, Docker, Kubernetes, Cloud, On-premise.
  • You also want unified data model.
Litmus Edge review

Choose OpenBOM if

  • You need multi-level boms.
  • You want to start without paying.
  • You work on Web, Windows, macOS, API.
  • You also want part catalogue.
OpenBOM review

Questions people ask

Is Litmus Edge or OpenBOM better?
Neither clearly leads. Litmus Edge starts at $1500/month and OpenBOM at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Litmus Edge or OpenBOM?
OpenBOM has a free tier; the other does not. Paid plans start at $1500/month for Litmus Edge and Free for OpenBOM.
Does Litmus Edge or OpenBOM run on more platforms?
Litmus Edge runs on Linux, Docker, Kubernetes, Cloud, On-premise. OpenBOM runs on Web, Windows, macOS, API.
Can I use OpenBOM for free?
Yes. OpenBOM has a free tier, so you can try it without paying. Litmus Edge starts at $1500/month.
What is Litmus Edge best used for?
Litmus Edge is most often used for a manufacturer with twenty plants and five plc brands that needs one data acquisition standard rather than twenty bespoke integrations, feeding a cloud data warehouse or lakehouse with normalised production data without asking the controls team to write cloud connectors, retrofitting data collection onto old cnc machines and robots where the protocol support is the hard part, not the analytics, adding local buffering and computation at sites with unreliable wan links so cloud outages do not create gaps in production history. Of those, a manufacturer with twenty plants and five plc brands that needs one data acquisition standard rather than twenty bespoke integrations and feeding a cloud data warehouse or lakehouse with normalised production data without asking the controls team to write cloud connectors are not what OpenBOM is typically brought in for.
What can Litmus Edge do that OpenBOM cannot?
Litmus Edge covers Prebuilt driver library, Unified data model, Litmus Edge Manager, Edge applications. OpenBOM covers Multi-level BOMs, Part catalogue, CAD add-ins, Change management.

Answered from the vendors’ own pages

Litmus Edge: Does Litmus Edge do analytics or dashboards?

Only lightweight edge computation and basic visualisation. It is a data acquisition and normalisation layer; the analysis happens in whatever you send the data to.

OpenBOM: Is OpenBOM free?

There is a genuine free tier limited to 2,000 data records and aimed at non-commercial and educational use. Commercial teams start at $30 per seat per month billed yearly.

Litmus Edge: How is it priced?

By number of sites and number of data points, in packages. The entry package starts around $1,500 per month; larger tiers are quoted.

OpenBOM: Do I pay for people who only look at BOMs?

No. Read-only users are unlimited and free on every paid plan, which is the main reason the total cost undercuts seat-for-seat PLM tools.

Litmus Edge: Can it replace my historian?

No. It buffers and forwards but is not a long-term historian. Most deployments send data into a historian, warehouse or lakehouse.

OpenBOM: Are the CAD add-ins included?

No. They are $25 per seat per month billed yearly, $45 monthly, and require an active Team or Company subscription.

Litmus Edge: Does it need Litmus hardware?

No. It runs on standard industrial PCs, virtual machines or containers; there is no proprietary appliance requirement.

OpenBOM: Can OpenBOM replace a full PLM?

For a startup, usually yes. For regulated manufacturing needing controlled workflows and full audit trails, no.

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