COMPARISON

Sinkaos vs D4H: an established readiness platform and a newer take on the loop

D4H has been building readiness and incident software since 2008, and search and rescue, fire and industrial emergency teams use it. Sinkaos is a younger product in early access. The comparison below gives D4H full credit, and covers when to pick it.

Last checked 2026-10-30

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ORIGINS

Two products for response teams, at very different stages

D4H was founded in 2008 by Robin Blandford, drawing on his own Coast Guard experience, and is headquartered in Dublin. EcoOnline acquired it in June 2025. D4H counts more than 100,000 responders in over 37 countries, and its customer stories include British teams such as Rossendale and Pendle Mountain Rescue and Solent Rescue.

The product line is modular: Personnel and Training, Equipment Management, Incident Reporting, Incident Management and Alerting. The Help Center places the first three on its Team Manager platform and Incident Management on Operations Center. Most modules come in Basic, Advanced, Professional and Enterprise plans.

Sinkaos is a field-operations workspace from a small independent team in the Czech Republic. It follows one loop from knowing your ground through planning, resourcing, training, the operation and debrief, and every stage works from the same world model.

SIDE BY SIDE

Sinkaos and D4H compared

Everything said here about D4H comes from d4h.com and the D4H Help Center, with links at the bottom of the page. Features we could not confirm are left out.

	SINKAOS	D4H
Maker	A small independent team in the Czech Republic	D4H, Dublin, founded 2008, part of EcoOnline
Track record	Early access, with no public references yet	Over 100,000 responders in 37+ countries, by its own count
Buying it	Organisations join through early access	Modules with indicative prices per country; a cloud plan at 25% of the subscription is required; a grant programme for 100% volunteer teams
Apps	Android, iPhone and web, in one app	Web, plus Incident Management, Personnel and Equipment apps for iOS and Android
Qualifications	Evidence, expiry, renewal rules and a compliance matrix	Qualification tracker, missing qualifications by role, expiry forecasts and advance notices
Rostering	Suggested rosters with reasons, approved by a person	On-call planner, availability tracker and team calendar
Training and exercises	Training mode, scenarios from real plans, injects, branches, evidence-based evaluation	Exercise planner and attendance tracking; training sandbox and exercise monitoring on higher cloud plans
Equipment	Inventory, nested kits, inspections, loadouts, QR scanning, vehicles	Inventory, nesting, barcoding, recurring inspections, repairs, expiry alerts, vehicle maintenance
Incidents	Incidents, tasks, forms and observations on a live map, with two clocks and replay	Forms, logs, tasks and checklists, status boards, live maps, personnel location
Alerting	Push, email and in-app, with acknowledgement and escalation	Push, SMS, email, phone calls and WhatsApp, two-way replies, response windows
Reporting	Debrief reports, exports, trends across operations	Incident reporting, analytics, cluster maps, custom reports, cost recovery
Search and rescue data	Sectors, tracks and offline maps; no lost person statistics	Lost person behaviour data with an ISRID export; K9 and handler tracker
Planning	Versioned plans, plan A, B and C, decision points, feasibility, plan versus actual	Pre-plans and an event planner are on the feature list
Offline	Offline-first apps, local field server, store and forward	Offline Mode: a 2023 Help Center article covers viewing and editing channel data for intermittent connections
Hosting and assurance	Hosted in the EU, on your own servers or on a closed network; audits listed only when a report can be checked	Cloud on AWS with US, EU, Canadian or Australian data regions; ISO/IEC 27001:2022 certified; SAML on higher cloud plans
Integration	REST API, webhooks, connector SDK, open standards, Cursor on Target	REST API; ArcGIS, Everbridge, InformaCast, Twilio and Tomorrow.io integrations

Checked against d4h.com and the D4H Help Center on 30 October 2026. Plans and features change, so follow the sources for the current state. This table was written by the Sinkaos team.

THE DIFFERENCE

Where the two take different approaches

BUYING

Modules or one workspace

With D4H you can start with a single module and add others as you grow. Sinkaos puts plans, people, kit, training and debrief in one workspace, so a roster can read the same plan an exercise was built from.

GROUND

Where it runs

D4H runs in its cloud, in a region you choose. Sinkaos can also run on your own servers or on a local field server with no internet, which matters on a closed network or in a valley without signal.

CHOOSING

D4H, Sinkaos, or both

Choose D4H when

You want a proven product now. It has a long record in search and rescue, a body of customer stories you can check, and implementation support.

Choose D4H when

Your priority is call-outs. SMS, phone calls, WhatsApp and two-way replies with response windows are all documented, and Sinkaos does not list SMS or phone alerts.

Choose D4H when

You need an ISO 27001 certificate today, ISRID lost person data or cost recovery.

Choose D4H when

You are a fully volunteer team. Its grant programme covers the majority of costs for 100% volunteer teams, and you can start with one module.

Choose Sinkaos when

You plan with alternatives and want rosters, exercises and debriefs to work from those plans, in one workspace.

Choose Sinkaos when

You work where signal fails for hours or on a closed network, and need offline-first apps and a local field server.

Choose Sinkaos when

You need your own servers, or want to help shape a young product with a small team, and accept what early access means.

Use both when

D4H already holds your personnel records and works well. Sinkaos connects to the staff systems teams already use and D4H has a documented API, so ask us whether a link fits your setup.

FAQ

Questions about Sinkaos and D4H

Does D4H work offline?

Offline Mode is on its feature list. A Help Center article from 2023 says you can view and edit channel data offline and that changes sync on reconnecting, for intermittent connections. Check the current state with D4H.

Should a D4H customer switch to Sinkaos?

If D4H does what you need, probably not. Sinkaos is worth a look if your plans, exercises and debriefs live outside your readiness system, or if you need to run the software yourself.

Which suits a search and rescue team?

D4H has years of use in SAR and lost person data built in. Sinkaos focuses on sector planning and work without signal. Our page on search and rescue shows how that looks.

What does each cost?

D4H publishes indicative prices per country and module on its pricing pages. Sinkaos is in early access, so ask us what applies to your organisation.