OneBookPlus vs simPRO
The affordable all-in-one simPRO alternative

How OneBookPlus replaces simPRO, without the enterprise price tag

simPRO is a powerful piece of software, there's no question. It dominates the enterprise field-service space for a reason: deep project costing, fleet tracking, asset maintenance contracts, and granular workflow customisation built for contractors running 20, 50, or 100+ technicians on long-running building services contracts. The problem is that small and mid-sized Australian trade businesses end up paying for all of that depth and using only the part that matches their week. OneBookPlus is built for the other end of the market, sole traders, growing teams, and trade businesses up to roughly 20 staff who need the same core capabilities without the enterprise overhead.

Where simPRO thinks in projects, change orders, and retentions, OneBookPlus thinks in cash flow and Aussie tax compliance. Every quote you send, every invoice that gets paid, and every supplier receipt you snap on your phone feeds directly into your financial picture, no exports, no Xero syncs, no consultant rebuilds when your workflow changes. You see what you've earned, what you're owed, and what the ATO needs, updated in real time.

Feature deep dive

Self-serve setup, not consultant-led implementation: simPRO's pricing page bundles an upfront setup fee for consultant-led onboarding, training, and data migration before you ever send your first invoice, the exact figure quoted to you on a sales call. OneBookPlus is self-serve from day one. Import your client list, set your ABN and GST defaults, and you're live within fifteen minutes. No project plan, no consultant rates, no setup fee, no go-live deadline.

Quoting to invoice to payment, in one flow: Create a quote on site from your phone, send it for one-click acceptance, and convert it to an invoice when the job's done. Materials, labour, and markup carry through automatically. Payment reminders go out on schedule. When the client pays online, the payment clears the invoice without you touching it. simPRO can do most of that, but only after you've also configured Xero or MYOB on the back end and paid for both subscriptions.

GST and BAS built into every transaction: Every line item, every expense, every invoice has GST handled natively, not bolted on via an accounting integration. When BAS time comes, your figures are already calculated. No exporting from simPRO into Xero, no chasing missing receipts across two systems, no consultant call to debug a sync that broke. OneBookPlus generates BAS-ready reports directly, built for Australian tax law from the ground up.

Who should switch

• Small-to-mid trade businesses (under 20 staff) currently paying simPRO enterprise rates and using only a fraction of the feature set.
• Tradies who balked at simPRO's implementation quote and are looking for an all-in-one alternative they can actually afford.
• Trade businesses tired of running simPRO and Xero side by side, double-paying, and double-handling data between the two.

Stay with simPRO if: you run a large enterprise contracting operation with 30+ technicians, manage long-running multi-stage building services projects with retentions and complex variation orders, or rely on simPRO's asset maintenance, fleet tracking, and detailed project costing modules for high-value contracts.

Getting started

Switching takes about fifteen minutes, no consultant required. Start by exporting your client and job data from simPRO (Reports > Export) and importing the CSV into OneBookPlus. Set your default GST treatment, ABN, and payment terms. From there, any new quotes and invoices happen in OneBookPlus, and the ledger builds from those transactions as you go, no second app, no implementation invoice, and no per-user enterprise charge below each plan's login cap (1 / 3 / 5 / 10 by tier).