simPRO is built for enterprise contractors — with enterprise prices, months-long implementations, and consultant fees to match. OneBookPlus gives Australian tradies the same core capabilities in one app, set up in minutes, from $0/month.





At a glance
From $0/mo — everything included, set up in minutes
~$130-200+ AUD/user/mo + $5k-30k implementation
Feature by feature
See exactly what's included in each platform. OneBookPlus replaces simPRO plus the Xero subscription and consultant implementation fees enterprise field-service tools typically demand.
| Feature | OneBookPlus | simPRO |
|---|---|---|
| GST-compliant invoicing | ||
| Quoting with one-click accept | ||
| Job scheduling & dispatch | ||
| Timesheet tracking | ||
| CRM & contact management | ||
| Online booking page | ||
| Google Calendar sync | ||
| Email marketing & campaigns | ||
| Built-in accounting & P&L | ||
| BAS / ATO tax summaries | ||
| Expense tracking with receipts | ||
| Google review requests | ||
| Payment reminders | ||
| Xero / MYOB integration | ||
| POS & retail management | ||
| Native mobile app | ||
| Free plan available | ||
| Price (AUD) | From $0/mo | ~$130-200+/user/mo |
| All included, no consultants | + $5k-30k implementation + Xero |
Why switch
simPRO typically requires a $5,000-$30,000+ implementation engagement and months of consultant-led setup before you go live. OneBookPlus is self-serve — connect your bank, import contacts, and you're invoicing within fifteen minutes.
simPRO charges enterprise rates per user — easily $130-200+/user/mo — designed for 20+ tech operations. OneBookPlus starts free and tops out at $69/month, built for sole traders and growing teams up to 20 staff.
simPRO needs Xero or MYOB running alongside it for BAS, P&L, and GST reporting. OneBookPlus includes accounting natively — no second subscription, no syncing issues, no quarterly reconciliation panic.
simPRO focuses on field-service operations. OneBookPlus adds online booking pages, email marketing campaigns, and Google review requests so you can win more jobs, not just deliver them.
A small simPRO deployment plus Xero plus implementation can easily run $25,000-$60,000 in year one. OneBookPlus delivers the same core workflows for a fraction of the cost — under $1,000/year all-in for most small trade businesses.
FAQ
It depends on your size. simPRO is built for large contractors with 20+ techs, complex multi-stage building services projects, and enterprise field-service operations — and it charges accordingly. For sole traders and growing teams under 20 staff, OneBookPlus is far better suited: same core capabilities (quoting, scheduling, invoicing, CRM, timesheets) with no implementation consultants, no per-user enterprise fees, and accounting built in. If you're under 20 staff and don't need simPRO's heavy project ops, OneBookPlus will save you tens of thousands a year.
Yes. simPRO requires Xero or MYOB to handle accounting, BAS, and P&L reporting on top of its own subscription and implementation fees. OneBookPlus includes accounting, expense tracking, BAS-ready reports, GST compliance, and P&L statements natively — alongside quoting, scheduling, invoicing, and CRM. One platform, one subscription, no double data entry between systems.
simPRO is enterprise-priced — typically $130-200+ AUD per user per month, plus a one-off implementation fee that ranges from $5,000 to $30,000+ depending on team size and complexity. You'll also need Xero or MYOB on top ($35-78 AUD/mo) for accounting. For a small team, simPRO can easily cost $1,500-3,000+/month plus the implementation hit. OneBookPlus starts free and includes everything for $0-69/month — saving small Australian trade businesses tens of thousands per year.
Yes — for most small-to-mid trade businesses. OneBookPlus supports job stages, progress invoicing, materials and labour tracking, and multi-step workflows that cover the vast majority of building services jobs. simPRO has more granular project operations (deeper retentions, complex variation orders, asset maintenance contracts) tailored for very large contractors managing dozens of long-running enterprise projects. If you're a large building services contractor with 50+ technicians on enterprise contracts, simPRO's depth makes sense. For everyone else, OneBookPlus does the job at a fraction of the cost.
OneBookPlus is the strongest simPRO alternative for Australian trade businesses with under 20 staff. simPRO is often overkill at that size — you end up paying enterprise prices, sitting through a months-long implementation, and using maybe 30% of the feature set. OneBookPlus delivers quoting, scheduling, invoicing, timesheets, CRM, accounting, BAS, marketing, and online bookings in one app, set up in fifteen minutes, with no consultant fees. Built specifically for Australian tax compliance and Aussie tradie workflows from day one.
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 maybe a third of it. 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.
Self-Serve Setup, Not Consultant-Led Implementation: simPRO deployments are notorious for taking months and costing $5,000-$30,000+ in implementation fees before you ever send your first invoice. OneBookPlus is self-serve from day one. Connect your bank via Australia's Consumer Data Right framework, import your client list, set your ABN and GST defaults, and you're live within fifteen minutes. No project plan, no consultant rates, no go-live deadline.
Quoting to Invoice to Bank Reconciliation, 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, the transaction matches against your bank feed 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 & 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.
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.
Switching takes about fifteen minutes — no consultant required. Start by connecting your business bank account; OneBookPlus pulls in recent transactions automatically via CDR. Next, export your client and job data from simPRO (Reports > Export) and import the CSV into OneBookPlus. Set your default GST treatment, ABN, and payment terms. From there, any new quotes and invoices happen in OneBookPlus, and your bank feed keeps your books current — no second app, no implementation invoice, no per-user enterprise charge.
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