Comparison
AssetSonar vs Reftab
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
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.
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.
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.
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.
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.
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.
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.
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.
Reftab
A well-designed asset tracker with a real free-forever tier, self-serve signup, and no sales call — and, like the rest of its class, no help desk, no roster, and no student.
Where Reftab is strong
- The only genuinely free-forever tier in this comparison, and a generous one — unlimited custom fields and locations, reservations with calendars, advanced reports with export, mobile apps, and barcode check-in/check-out at no cost.
- SSO and two-factor authentication at the lowest paid tier rather than gated to enterprise, which is unusual and district-friendly.
- Unlimited platform users on every tier, so the bill never grows because you added staff.
- Native iOS and Android apps with barcode scanning, plus a barcode designer and custom email templates.
- Strong MDM breadth at the top tier — Intune, Jamf Pro and Jamf School, Kandji, Mosyle, NinjaOne, FleetDM, and Apple Business Manager — plus vendor warranty sync from Dell, CDW, Lenovo, and Apple.
- A Google Workspace integration that imports Chromebooks and mobile devices daily, with configurable field mapping and optional auto-assignment to the Google-assigned user.
What to check before you buy
No native help desk or ticketing with SLAs. Jira Cloud and Zendesk connectors exist to surface assets on someone else's ticket, and they are top-tier features — so a district buys a service desk separately either way.
Basis: Reftab's integration listing offers Jira and Zendesk plugins rather than native ticketing; no SLA capability appears in any tier.
No SIS or rostering integration — no OneRoster, Clever, ClassLink, or PowerSchool — and no student, guardian, or family concepts. Nothing reacts to a transfer, a withdrawal, or grade rollover.
Basis: None appear in Reftab's integration catalog or documentation; the identity integrations are corporate directories.
Signature capture is staff-side custody acknowledgement, not a parent or guardian e-signature on a device agreement, and it sits behind a mid-tier upgrade.
Basis: Reftab lists signature capture as a Pro-tier feature; no guardian entity or agreement workflow exists in the data model.
No student fee assessment and no family balances, so damage recovered at collection time is tracked outside the system.
Basis: Absent from Reftab's documented feature set across all tiers.
No funding-source or grant tracking for ESSER, Title, or E-Rate attribution.
Basis: No funding-source dimension appears in Reftab's documentation.
ChromeOS support is import only and syncs once daily. Nothing writes back, so OU moves and disabling a stolen Chromebook remain manual work in Google Admin.
Basis: Reftab's Google Workspace integration guide documents a daily one-way import with field mapping; no write-back is described.
The MDM connectors that make the inventory self-maintaining — Intune, Jamf, Kandji, Mosyle, Apple Business Manager — are all top-tier features, which is a meaningful jump from the tier where SSO lives.
Basis: Reftab's pricing page places all MDM, vendor, and IdP integrations at the Business tier.
It consumes SSO but is not an identity provider. Okta, Entra ID, SAML 2.0, SCIM, and LDAP are identity it reads, not identity it issues — and the IdP user-provisioning integrations are top-tier only.
Basis: Reftab is configured as a service provider against an external IdP; provisioning integrations are listed at the Business tier.
The third option: Chalk
If you are weighing AssetSonar against Reftab, 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.