Content date: 3 October 2026 · Editorial responsibility: Dimitris Mitsios · No individual check logged· AI use

Noise and data monitoring software vs construction crew forms and compliance · Guide revised September 2026

Acoem (Cadence and Airodis) vs Assignar: Scope, limits and demo questions

Side-by-side comparison

Acoem (Cadence and Airodis) and Assignar: pricing, evaluation starting point, scope, what to verify and offline scope. Select a row label to show its full text.
Attribute	Acoem (Cadence and Airodis)	Assignar
	No amount on record; request quote
	Environmental Management	Construction Safety
	Validate user roles, sites and scale against your proposed deployment.
	Confirm hosting, support languages and contractual coverage for your region.
	See the linked profile's capability evidence
	See the linked profile's unresolved questions
	Not yet classified	Partial offline workflow

Where the two scopes differ

These records describe different jobs. The Acoem record covers software built around the group's own instruments: Cadence, a cloud service for suitable noise and vibration monitors with dashboards, alerts, AI-assisted source labels and compliance reports, and Airodis, Windows and SQL Server software that collects logger data, lets reviewers validate it with recorded reasons and sends scheduled reports. The Assignar record covers construction operations: crew scheduling with qualification and expiry records, configurable forms with owners and review statuses, site diaries and timesheets. The record cautions that filling in an incident or permit form does not by itself give a buyer a specialist investigation tool or a permit-to-work process.

Dependencies sit in different places. For Acoem they are the monitors, their calibration, firmware and communications, and the record asks for each device, protocol and version to be matched to a published compatibility list; Cadence and Airodis are separate licences, and the public security and API datasheet for Cadence is dated October 2021. For Assignar they are the operations scope, regional product scope and integrations: partner connectors, import and export, and public API access offered as an add-on. Security statements also differ: Assignar's trust centre lists compliance with SOC 2 Type I and ISO 27001 (report and certificate unseen), while the Acoem record lists no certification and asks for any accreditation to be matched to the entity, service or instrument it covers.

Neither vendor publishes software prices. Acoem offers a pricing request for Airodis and a request form for Cadence whose terms and duration are not stated; the record asks for software to be quoted apart from instruments, installation, communications and calibration. Assignar's pricing page leads to a demo and a test drive, and the record does not establish an unrestricted free trial. Both records leave open how each tool behaves under poor connectivity: Cadence backfill, and Assignar attachment and conflict handling.

Acoem (Cadence and Airodis): status on record

Trial: Trial or demo on request.
Offline: Not yet classified.
Pricing: No amount on record; request quote.
Profile record checked 2 October 2026.

Assignar: status on record

Trial: No free trial established.
Offline: Partial offline workflow.
Pricing: No amount on record; request quote.
Profile record checked 3 October 2026.

When each is the safer first demo

Start with Acoem (Cadence and Airodis) when

Take Acoem to the first session when you run, or are buying, its monitors and the first requirement is defensible noise or air data. Ask for ten labelled exceedances to be compared with recordings by your acoustician, and a month of logger data validated with reasons, reversed once and reported, with every model and version named.

Start with Assignar when

Take Assignar to the first session when crews, tickets and daily paperwork share one bottleneck. Ask for a worker with an expired credential to be scheduled, a site diary signed and then edited from the dashboard, and a form completed offline, noting which scheduling signals warn and which block.

A two-week evaluation plan

Ask Acoem (Cadence and Airodis)

Which monitor models, firmware versions and loggers are in scope, and are Cadence, Airodis, instruments, communications, calibration and field service quoted as separate lines?
Can current API, data-residency, retention, backup and service-level documents be supplied, given that the public datasheet dates from October 2021?

Ask Assignar

Which Operations features, field users, dashboard users and regional scope does the quote name, with any Pay offering and the API add-on on separate lines?
Which forms, assignments and documents work offline, and how are attachments and conflicting edits handled?

Week 1: take one Cadence monitor offline for an hour and check whether the gap is backfilled, flagged or lost, and download a month from two logger models into Airodis. In Assignar, fill in an equipment check and a timesheet with the connection off, reconnect and compare the record. Neither record shows a verified free trial, so agree access, test users and dates with each vendor first.

Week 2: have your acoustician compare ten Cadence labels with recordings, and in Airodis invalidate an hour with a reason, reverse it and check the log and the scheduled report. In Assignar, schedule a worker whose credential has lapsed and see whether the system warns or blocks, then edit a signed diary from the dashboard. Finish with a quote check that lists every instrument, connector and add-on you used.

Worked evaluation scenarios

These scenarios are hypothetical. They show how to turn the record facts into a demo test and what outcome would change a choice; they are not case studies or customer results.

Hypothetical: a road-widening site with complaints about evening noise

Residents beside a road-widening site complain about evening noise, and the contractor runs monitors on the boundary. The Acoem record describes Cadence alerts and noise exceedances with main and secondary source labels that need checking against recordings. The Assignar record describes configurable forms with routed owners and review statuses, plus supervisor site diaries, and lists its public API as an add-on. Trigger a known activity, such as a breaker, and see how Cadence labels it. Then record the corrective step in an Assignar form and note how the exceedance reference reaches it, by hand or through an interface. If the link is manual, name the person who owns it each evening.

Hypothetical: a regulator and a client each ask who changed a record

A regulator asks who altered a monitoring reading, and a client asks who altered a signed daily diary. The Acoem record describes Airodis recording a reason whenever data is edited, with a reversible audit log and marked edits. The Assignar record notes that editing a diary from the web dashboard can swap the supervisor's signature and drop the client's, and flags amendment controls for review. Invalidate an hour of readings with a reason in Airodis, reverse it, and read the log. Then edit a signed diary from the Assignar dashboard and read what the history shows. If a signature change leaves no visible trace, add a procedural control to your rollout plan.

Hypothetical: a tunnel portal where the signal comes and goes

A tunnel portal has coverage that comes and goes through the day, and both a monitor and a supervisor need to keep working. The Acoem record describes Cadence as cloud-delivered, with live dashboards, remote configuration and alerts depending on being online, and does not establish whether a monitor's buffered data is backfilled. The Assignar record cites a help article on automatic and manual offline modes that covers listed items from a given app version, with attachment and conflict behaviour left unestablished. Disconnect a monitor for an hour, and take a phone offline to complete a form and a timesheet. Compare what is flagged, what is lost and what reconciles. If a gap stays silent, add an alert or a manual check.

What the records do not establish

Acoem (Cadence and Airodis)

A price for Cadence, Airodis or the instruments, or the terms and duration of Cadence access.
How monitors hold data during an outage, or whether Cadence fills the gap afterwards.
That the AI source labels are right for your site: the record treats them as decision support.
Current API, security and data-residency terms beyond the October 2021 datasheet.

Assignar

A public subscription amount, or an unrestricted free trial.
Offline attachment handling, conflict behaviour or recovery beyond the items the help article lists.
That scheduling signals block a worker with a missing credential: they are described as decision aids.
The content of the SOC 2 Type I report or ISO 27001 certificate shown on the trust centre.

Neither product

Which product reduces complaints, exceedances or incidents: no outcome data was reviewed.
Experience of existing customers, because neither record includes an independent review sample.
A practical test outcome for either product.

Written from the profile records and the decision guide above, not from a hands-on test. Where a record is silent, the page says so instead of filling the gap.

Evaluate Acoem (Cadence and Airodis)

Identify the exact product, application and licence.
Review the profile's demonstration questions.
Run the same task and record unresolved questions.

See Acoem (Cadence and Airodis) profile

Evaluate Assignar

Identify the exact product, application and licence.
Review the profile's demonstration questions.
Run the same task and record unresolved questions.

See Assignar profile

Acoem (Cadence and Airodis) vs Assignar | FAQ

Which product is cheaper?

Comparable total cost has not been established. Request the same applications, users, sites, configuration, migration, integrations and support period from both vendors. Published entry pricing is subject to the plan conditions shown in each profile.

How should I compare offline capability?

Use the exact proposed mobile application and plan. Download required data, disconnect, create a record with a photo, reconnect and inspect synchronization. Record which preparation and tasks require connectivity.

How should I decide between these products?

Set acceptance criteria for your actual workflow. Complete the same demo, record observed results separately from vendor statements and resolve remaining questions in a scoped pilot. The linked profiles show the sources and review status for each product.

Vendor sources and next steps

Acoem (Cadence and Airodis)14 sources, profile checked 2 October 2026

Assignar17 sources, profile checked 3 October 2026

Record the same demo tasks in the scorecard →

Related comparisons

Need a personalised shortlist?

Answer the matching questionnaire to explore up to 5 platforms based on your industry, size and processes, then verify the requirements with each vendor.

Get matched