OneBookPlus vs Fergus
Job management, plus the accounting

It depends on what you need. Fergus is a mature, Australian-built job-management tool with excellent scheduling, 100+ supplier feeds, and tight Xero/MYOB sync, if dispatch and supplier-invoice automation are the centre of your day and you already run Xero, Fergus is a genuinely strong fit. OneBookPlus is the better fit if you want the same quoting, scheduling and invoicing PLUS native accounting, BAS, online bookings, CRM, marketing and AI in one flat-priced platform, without running a second accounting subscription.

Fergus publishes Essentials from A$53/month and Professional from A$77/month, with timesheet users from A$26/month and contractors at A$4/user/day (source: fergus.com/au/pricing, checked 2026-08-02). Those are "from" prices: Fergus sells set feature tiers with flexible user options, so the figure you are quoted rises with the size of your crew. There is no free plan, just a 14-day trial. Most tradies also pay for Xero or MYOB on top because Fergus has no native accounting. OneBookPlus is a flat plan, $0 Free, $29 Starter, $49 Plus, or $69 Growth per month, with the whole team and the accounting included.

No. Fergus handles GST on invoices, deposits and progress claims, but it has no native accounting engine, it syncs invoices and contacts to Xero, MYOB or QuickBooks, where your P&L, balance sheet and BAS live (source: fergus.com/au). OneBookPlus includes a full Australian accounting engine: P&L, balance sheet, GST tracking and quarterly BAS-ready figures (G1, 1A, 1B), all in the one plan, so there's no second bill and no sync to reconcile. Payroll is a separate add-on at $29/month (rosters, timesheets, pay runs, PAYG withholding to the ATO coefficients, super, penalty rates, leave, payslips and an ABA bank file). It works out and records what you owe, but it does not lodge Single Touch Payroll pay events to the ATO, so you still report each pay run through STP-enabled software.

For most solo tradies and small teams, yes. OneBookPlus covers the core Fergus workflow, quoting, job scheduling, time and materials, GST invoicing and a native iOS app, and adds accounting, BAS, online bookings, CRM, marketing and AI. The main thing Fergus does that OneBookPlus does not is automated supplier-invoice feeds from merchants like Reece, Tradelink and CEF; if that automation is core to your costing, weigh it before switching.

Fergus quotes plan prices from A$53/month (Essentials) and A$77/month (Professional), and those are starting figures that move with your user count, plus A$26/month per timesheet user and A$4/user/day for contractors (fergus.com/au/pricing). Add a Xero or MYOB subscription for the books, because Fergus has none. OneBookPlus plans are flat and include your team and your accounting, so the bill does not move when you put another apprentice on. Ask Fergus for a quote at your actual headcount and compare it against $0, $29, $49, or $69 a month.

Yes. Both are Australian businesses, Fergus is based in Woolloomooloo, NSW (source: fergus.com/au), and OneBookPlus is Australian-built and hosted on AWS in Sydney (ap-southeast-2), with GST, ABN validation and BAS reporting native to the platform rather than handled through a connected accounting product.

ServiceM8, Tradify, AroFlo and simPRO are the usual head-to-head Fergus alternatives, and like Fergus they are job-management-first: strong on quoting, scheduling and dispatch, with your accounting handled in a connected Xero, MYOB or QuickBooks subscription. OneBookPlus differs by bundling native AU accounting, BAS-ready figures, online bookings, CRM, marketing and AI alongside the job-management core, in one flat-priced app instead of a job tool plus a separate ledger. If dispatch depth is your one criterion, compare those dedicated tools directly; if one bill and one system is the goal, that is the OneBookPlus case.

Yes. OneBookPlus exports contacts and transactions as CSV and in a Xero-compatible format, so your accountant can keep working the way they do now while you run quoting, jobs and invoicing in OneBookPlus. Many switchers run both for a quarter, confirm the BAS figures reconcile, and then decide whether to keep the separate ledger at all, since P&L, balance sheet and BAS-ready figures are built into OneBookPlus. Talk to your accountant about timing before you cancel anything.

Not a native one today. Fergus ships native iOS and Android apps (fergus.com/au). OneBookPlus has a native iOS app; on Android you use the web app in your browser, which covers quoting, jobs, invoicing and the CRM but is not a native install. If your crew is mostly on Android and a native app is a hard requirement, that is a genuine point in Fergus's favour.