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Field Service · head to head

Brightly Asset Essentials vs Trimble Unity Maintain

Brightly Asset Essentials logo

Brightly Asset Essentials

Field Service

CMMS and asset management for schools, local government, healthcare estates and manufacturing, now part of Siemens

From
On request
Rated
-
Full reviewWebsite
Trimble Unity Maintain logo

Trimble Unity Maintain

Government

GIS-centric public asset and work management, the product formerly sold as Cityworks

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Brightly Asset Essentials nothing about the pricing is published, the official pricing page has been removed, and quotes are per organisation, so buyers cannot benchmark and negotiating leverage depends entirely on running a competitive process.; Trimble Unity Maintain esri ArcGIS is a hard prerequisite, so an organisation without it faces a second substantial licence and a GIS programme before the maintenance system can be used at all.
  • They diverge on capability: Brightly Asset Essentials covers Work orders and requests, Trimble Unity Maintain covers Built on ArcGIS.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Brightly Asset Essentials and Trimble Unity Maintain actually diverge.

Attributes where Brightly Asset Essentials and Trimble Unity Maintain differ
AttributeBrightly Asset EssentialsTrimble Unity Maintain
PlatformsWeb, iOS, AndroidWeb, iOS, Android, Windows
CategoryField ServiceGovernment

Identical on both: starting price (On request), pricing model (quote), free tier (No), user rating (Not yet rated).

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 Brightly Asset Essentials

  • Work orders and requests
  • Preventive maintenance
  • Asset registers
  • Capital planning
  • Inventory
  • Mobile app
  • Energy and sustainability
  • Reporting

Only in Trimble Unity Maintain

  • Built on ArcGIS
  • Service requests
  • Work order management
  • Permits and licensing
  • Mobile field access
  • Storeroom and inventory
  • Operational Insights
  • AgileAssets convergence

What people use each for

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

Brightly Asset Essentials

  • A school district consolidating maintenance requests from fifty buildings into one queue with a portal teachers can usenot Trimble Unity Maintain
  • A municipal public works department that must justify replacement capital to a council with condition-based evidencenot Trimble Unity Maintain
  • A healthcare estate tracking statutory compliance tasks and producing audit evidence on demandnot Trimble Unity Maintain
  • A senior living operator standardising preventive maintenance across sites with a mobile app technicians will actually opennot Trimble Unity Maintain

Trimble Unity Maintain

  • A water utility wanting valve exercising and hydrant flushing recorded against the same GIS features the engineering team maintainsnot Brightly Asset Essentials
  • A city consolidating a citizen service request line, work orders and inspections into one location-based systemnot Brightly Asset Essentials
  • A state transportation department managing pavement and bridge assets with linear referencing rather than point assetsnot Brightly Asset Essentials
  • A public works department that has already licensed ArcGIS Enterprise and wants to avoid rekeying its asset inventorynot Brightly Asset Essentials

Where each one falls short

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

Brightly Asset Essentials

  • Nothing about the pricing is published, the official pricing page has been removed, and quotes are per organisation, so buyers cannot benchmark and negotiating leverage depends entirely on running a competitive process.
  • Implementation and data migration are quoted separately and commonly add five figures to a mid-size deployment, which is not visible when comparing headline subscription numbers.
  • Siemens ownership has pointed the roadmap at building and infrastructure integration, so industrial maintenance features compete for attention with Siemens Smart Infrastructure priorities.
  • Capability is split across separate Brightly products, so functionality shown in a demo may require an additional module and an additional line on the contract.
  • Reporting is fixed-template heavy and getting a non-standard report often means exporting to a spreadsheet, which undermines the case for consolidating on one system.

Trimble Unity Maintain

  • Esri ArcGIS is a hard prerequisite, so an organisation without it faces a second substantial licence and a GIS programme before the maintenance system can be used at all.
  • The product is mid-rename from Cityworks to Trimble Unity Maintain with transition timelines Trimble has not committed to publicly, leaving contracts, documentation and integrator experience split between two names.
  • CVE-2025-0994, a deserialisation flaw in Cityworks, was exploited in the wild and listed by CISA in February 2025, which makes on-premise deployments a patching obligation rather than a set-and-forget install.
  • Because assets live in the GIS, changing the asset model is a GIS division change, so maintenance teams cannot restructure their own hierarchy without another department in the loop.
  • It is built for North American public sector practice, and the permitting, funding source and reporting models do not map cleanly onto other countries or onto private industrial estates.

Pricing, plan by plan

Brightly Asset Essentials

On request
  • Asset Essentials$undefined/year
    • Priced by named users and modules, quoted per organisation
    • Implementation, data migration and training quoted separately
    • Multi-year agreements are the norm for public-sector buyers

Trimble Unity Maintain

On request
  • Trimble Unity Maintain$undefined/year
    • Annual subscription sized by population served, asset volume and user count
    • Esri ArcGIS Enterprise or ArcGIS Online licensing required separately
    • Hosted and on-premise deployment priced differently

Which should you pick?

Choose Brightly Asset Essentials if

  • You need work orders and requests.
  • You work on Web, iOS, Android.
  • You also want preventive maintenance.
Brightly Asset Essentials review

Choose Trimble Unity Maintain if

  • You need built on arcgis.
  • You work on Web, iOS, Android, Windows.
  • You also want service requests.
Trimble Unity Maintain review

Questions people ask

Is Brightly Asset Essentials or Trimble Unity Maintain better?
Neither clearly leads. Brightly Asset Essentials starts at On request and Trimble Unity Maintain at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Brightly Asset Essentials or Trimble Unity Maintain?
Brightly Asset Essentials starts at On request and Trimble Unity Maintain at On request.
Does Brightly Asset Essentials or Trimble Unity Maintain run on more platforms?
Brightly Asset Essentials runs on Web, iOS, Android. Trimble Unity Maintain runs on Web, iOS, Android, Windows.
What is Brightly Asset Essentials best used for?
Brightly Asset Essentials is most often used for a school district consolidating maintenance requests from fifty buildings into one queue with a portal teachers can use, a municipal public works department that must justify replacement capital to a council with condition-based evidence, a healthcare estate tracking statutory compliance tasks and producing audit evidence on demand, a senior living operator standardising preventive maintenance across sites with a mobile app technicians will actually open. Of those, a school district consolidating maintenance requests from fifty buildings into one queue with a portal teachers can use and a municipal public works department that must justify replacement capital to a council with condition-based evidence are not what Trimble Unity Maintain is typically brought in for.
What can Brightly Asset Essentials do that Trimble Unity Maintain cannot?
Brightly Asset Essentials covers Work orders and requests, Preventive maintenance, Asset registers, Capital planning. Trimble Unity Maintain covers Built on ArcGIS, Service requests, Work order management, Permits and licensing.

Answered from the vendors’ own pages

Brightly Asset Essentials: Who owns Brightly?

Siemens, which acquired it in 2022 for around 1.58 billion USD. It sits within Siemens Smart Infrastructure.

Trimble Unity Maintain: Is Cityworks discontinued?

Not discontinued, renamed. It is becoming Trimble Unity Maintain, converging with AgileAssets, and Trimble has not published a final transition date.

Brightly Asset Essentials: What does Asset Essentials cost?

Not published. It is quoted by user count and modules, with implementation priced separately.

Trimble Unity Maintain: Do I need Esri ArcGIS?

Yes. The product is built on ArcGIS and cannot be deployed without an Esri licence.

Brightly Asset Essentials: Is it suitable for manufacturing?

It can run a plant, but the product heritage and roadmap are estates and infrastructure, so plant-specific features lag purpose-built industrial CMMS.

Trimble Unity Maintain: Was there a security incident?

Yes. CVE-2025-0994 in Cityworks was exploited in the wild and added to the CISA known exploited vulnerabilities catalogue in February 2025.

Brightly Asset Essentials: Is there a free tier or trial?

No published free tier. Evaluation is through a sales-led demo.

Trimble Unity Maintain: Can it handle roads and pavement as well as pipes?

Yes, through the AgileAssets lineage now inside the Unity Maintain family, which adds linear referencing for transportation assets.

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