Simpro vs ONAP SitePro: UK Field Service Software Compared 2026

Simpro is one of the best-known names among larger UK trade and contracting businesses, built around detailed costing, assemblies and multi-stage project tracking. ONAP SitePro takes a different approach, aimed at growing UK field service and facilities management businesses that want strong operational control without enterprise-level setup time and cost.

This comparison looks at pricing, setup time, scheduling, invoicing and support, so you can see where each platform is genuinely stronger before deciding which one fits your business.

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Quick Answer

Simpro suits large, project-heavy contractors who need deep costing and multi-stage job tracking and have the budget and time for a longer implementation. ONAP SitePro suits growing UK field service and facilities management businesses that want to be live within days, with UK-based pricing and support, rather than paying for complexity they will not use day-to-day.

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Setup Time and Onboarding

Simpro's depth comes with a trade-off: onboarding is commonly reported to take several weeks given the amount of configuration involved in costing structures, assemblies and multi-stage workflows. ONAP SitePro is built so a team can be scheduling jobs, dispatching engineers and sending invoices within days of signing up, with onboarding support included rather than a dedicated implementation project.

Pricing

Simpro's pricing structure can look reasonable in a sales call and more expensive once the actual per-user cost at your team size is confirmed in writing. ONAP SitePro publishes UK pricing in GBP: Starter from £99/month for up to 5 engineers, Growth at £249/month for up to 20 engineers, and Scale at £499/month for unlimited engineers, with no setup fee and no long-term contract on any plan.

Scheduling and Dispatch

Both platforms cover job scheduling and engineer dispatch. Simpro's scheduling is built to handle complex, multi-stage projects with detailed resource planning, which suits large contractors managing long-running jobs. ONAP SitePro's scheduling is built around fast day-to-day dispatch: drag-and-drop job assignment, real-time engineer availability and instant mobile dispatch, suited to businesses running a high volume of shorter jobs and call-outs rather than long multi-stage projects.

Invoicing and Quoting

Simpro covers quoting and invoicing with depth aimed at complex, itemised project billing. ONAP SitePro connects job completion directly to invoicing and quoting without the same configuration overhead, aimed at teams that want to convert a completed job into an invoice quickly rather than build out detailed cost assemblies first.

Support and Market Fit

Simpro originated outside the UK and support is not built specifically around UK trading norms. ONAP SitePro is built for UK field service and facilities management businesses from the ground up, with UK-based support and pricing in GBP rather than a converted currency.

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Feature Comparison

Area	Simpro	ONAP SitePro
Best suited for	Large, project-heavy contractors	Growing UK field service & facilities businesses
Setup time	Often several weeks	Typically live within days
Pricing	Scales steeply per user	From £99/month, tiered by team size
Contract	Often annual commitment	No long-term contract
Scheduling style	Multi-stage project planning	Fast day-to-day dispatch
Support	Originated outside the UK	UK-based support

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Which Should You Choose?

If your business runs large, complex, multi-stage projects and the budget and time exist for a longer implementation, Simpro's depth can be genuinely useful. If your business wants to be scheduling jobs and invoicing customers within days, at UK pricing with UK support, ONAP SitePro is built for that instead. More detail on the platform is available on the ONAP SitePro product page, including a full breakdown of plans on the pricing page.

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Frequently Asked Questions

Is Simpro or ONAP SitePro better for a small UK field service business?

Small and growing UK field service businesses often find ONAP SitePro a faster fit, since it is built for quick setup and priced from £99/month, while Simpro's depth and cost tend to suit larger, project-heavy contractors.

How long does it take to switch from Simpro to ONAP SitePro?

Most teams can be scheduling jobs and dispatching engineers within days of signing up. Onboarding support is included to help migrate customer records and existing job history.

Is ONAP SitePro cheaper than Simpro?

Pricing depends on team size and features used, but ONAP SitePro starts from £99/month with published UK pricing, generally positioning it as a lower-cost option for growing teams compared with Simpro's per-user scaling.

Does ONAP SitePro handle multi-stage projects like Simpro does?

ONAP SitePro covers work order and contract management suited to ongoing and recurring work. Businesses running very large, complex, multi-stage projects should compare feature depth directly against their specific requirements before switching.

Can I migrate my data from Simpro to ONAP SitePro?

Most platforms, including ONAP SitePro, support importing customer and job history during onboarding. Confirm the exact export process from Simpro before committing to switch.

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Conclusion

Simpro remains a strong choice for large, project-heavy contracting businesses that need its depth and have the time and budget for its setup process. ONAP SitePro is built for growing UK field service and facilities management businesses that want to be live within days, at UK pricing with UK-based support. Compare both directly against your own team size and job complexity before deciding, or explore ONAP SitePro to see if it fits.