Comparison
AssetSonar vs InvGate Asset Management
Two tools districts shortlist for device tracking and IT operations, compared the way a buying committee actually reads them: what each is, what each does well, and what to check before signing. We build Chalk, a third option in this space — that context is worth knowing as you read, and it is why every claim below carries its basis.
AssetSonar
EZO's IT-asset product, and the rare asset tracker that publishes a per-asset price and includes a genuine service desk at the higher tier — metered by the one number a 1:1 district has most of.
Where AssetSonar is strong
- It publishes real per-asset prices instead of gating every number behind a demo — $0.75 per asset per month for ITAM and $1.08 for ITSM — which makes a district budget line something you can build without a sales call.
- Unlimited agents on both plans, so adding technicians, building secretaries or a summer help-desk aide never changes the bill.
- The ITSM tier is a real service desk, not a ticket list: request and incident management, problem and change management, a service catalog, multi-channel intake, automated routing, multi-step approvals, SLA policies with business hours and escalation, a knowledge base and a self-service portal.
- Custody features deeper than most trackers — check-in and check-out, automatic checkouts, automatic custody transfer, reservations and an availability calendar.
- Genuine discovery breadth for a commercial tracker: agent-based discovery, network discovery, MDM integrations, barcode and QR scanning, and RFID tagging.
- Procurement and service done properly — purchase orders and requests with multi-tier approvals, vendor management, warranty integration, service triage, and scheduled and recurring maintenance with automated reminders.
What to check before you buy
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The meter is your fleet. At a per-asset rate, a 1:1 district is billed on the number it has most of, and every Chromebook you add is a line item forever.
Basis: Vendor pricing page quotes ITAM and ITSM as per-asset-per-month rates.
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Packages start at 100 assets, so the smallest sites pay a floor rather than what they use.
Basis: Vendor pricing FAQ: AssetSonar packages start from 100 assets, with volume-based discounts for higher volumes.
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The help desk is the upgrade. SLA management, the service catalog, the self-service portal, the knowledge base, problem and change management and the CMDB are all marked ITSM-only in the vendor's own comparison table — the difference between $0.75 and $1.08 per asset per month.
Basis: Vendor's published ITAM-versus-ITSM plan comparison table.
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Software asset management is a third line item on top of either plan, at $5 per asset per year.
Basis: Vendor pricing FAQ describes Advanced SAM as an add-on available with both ITAM and ITSM plans.
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No SIS or rostering integration — no OneRoster, Clever, ClassLink, PowerSchool, Infinite Campus or Skyward anywhere in EZO's connector catalog, which covers MDM, identity and procurement systems.
Basis: Absent from EZO's published integrations listing for AssetSonar.
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No student, guardian or enrollment concepts. Checkout is employee custody, so a transfer, a withdrawal or grade rollover is invisible unless someone edits the record.
Basis: The product's data model tracks assets and users; the custody features are documented as employee check-in and checkout.
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No parent e-signature on a device agreement, no student fee assessment, no family balances, and no funding-source or grant dimension for ESSER, Title or E-Rate reporting.
Basis: Absent from EZO's documented feature set and plan comparison.
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Device connectors are ingest-oriented. The MDM integrations import device state into AssetSonar; nothing pushes a reviewed set of changes back, so an OU move or disabling a stolen Chromebook stays manual in Google Admin.
Basis: EZO's integration listing describes MDM connectors as importing device data, with no write-back workflow claimed.
InvGate Asset Management
A serious corporate ITAM platform with real discovery, a CMDB, and an on-premises option — priced per networked device, which is the worst possible meter for a 1:1 district.
Where InvGate Asset Management is strong
- Genuinely strong automated discovery — a lightweight agent, agentless network scanning, integrations, and bulk import covering hardware, servers, containers, databases, and cloud services.
- A real CMDB with automatic relationship discovery and assisted dependency mapping.
- A deep integration catalog: Intune, Jamf, SCCM, Active Directory, Entra ID, Okta, AWS, Azure, VMware, ServiceNow CMDB, Jira Service Management, Zendesk, Slack, Teams, and remote-access tools, plus a documented REST API.
- A genuine on-premises option on Windows Server or RHEL with your choice of database, including support for air-gapped operation — unusual in this category.
- Google Workspace integration that imports ChromeOS devices and users, so Chromebooks do land in the inventory automatically.
- Software asset management with license optimization, metering, deployment, and compliance.
What to check before you buy
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Pricing is per networked device per year, so cost scales directly with fleet size. A district with one Chromebook per student is quoted on the single number it has most of, which is the opposite of a per-technician model.
Basis: InvGate's published pricing page prices Pro per IP device per year and defines an IP device as any asset connected to a network with an IP address.
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Ticketing is a different product. InvGate Asset Management is ITAM only; a help desk means separately licensing InvGate Service Management, which is a second contract and a second bill.
Basis: InvGate sells Asset Management and Service Management as two separately licensed products and describes the ITAM platform as functioning standalone.
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No SIS or rostering integration — no OneRoster, Clever, ClassLink, or PowerSchool. The identity sources in the integration catalog are corporate directories only.
Basis: InvGate's full published integration list names Active Directory, Entra ID, Okta, Google Workspace, and cloud platforms; no education system appears.
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No student or guardian concepts. Asset owners are users and employees, with no enrollment, grade, guardian relationship, or reaction to a mid-year transfer.
Basis: The product's lifecycle and ownership model is employee framed; the vendor's named customers are manufacturing, utilities, aerospace, retail, and insurance.
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No 1:1 device circulation loop — no due dates on a student's device, no overdue workflow, no e-signed parent agreement, no loaner pool, and no lost or stolen lifecycle. The lifecycle modelled is procurement, assignment, and disposal.
Basis: Absent from InvGate's asset lifecycle documentation, which is corporate IT framed.
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No funding-source or grant tracking — no way to attribute devices to ESSER, Title, or E-Rate money for reporting.
Basis: No grant or funding-source dimension appears in the product documentation.
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ChromeOS support is import only. Chromebooks and users come in from Google Workspace; nothing writes back — no OU moves, no disable, no annotated fields.
Basis: InvGate documents the Google Workspace integration as importing users, ChromeOS devices, and organizational data; no write-back is claimed.
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It consumes SSO but is not an identity provider — Okta and Entra ID appear as identity sources it reads, not identity it issues.
Basis: InvGate is configured as a service provider against an external IdP; it is not listed as issuing SAML or OIDC.
The third option: Chalk
If you are weighing AssetSonar against InvGate Asset Management, Chalk belongs on the same shortlist. It is the open-source K-12 IT stack: device inventory that fills itself in from Google Admin, Intune, and Jamf against a roster synced from your SIS, a 1:1 circulation desk with agreements and fees, repairs with parts and costs, a help desk that already knows who is asking, and a built-in SAML/OIDC identity provider.
- Self-host it free forever under AGPL-3.0 — the entire feature set, one binary, your infrastructure — or use the hosted version, priced by fleet size with no per-seat or per-student fees and the price ladder published.
- Built only for K-12: students, buildings, custody, funding sources, and ChromeOS auto-update expiration are native concepts, not custom fields.
- Writes back to Google Admin as a reviewed diff — every OU move, disable, and deprovision previewed before it executes — and serves a OneRoster 1.1 API so other district systems can pull the roster from Chalk.
- Fees are assessed and tracked without touching payment cards, keeping the asset system out of your PCI scope.
See all three on your own roster.
Chalk installs to a populated inventory in about 30 minutes. Self-host free under AGPL-3.0, or let us run it — priced by fleet size, never per seat.