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First public release of Seastack Book. - Clock in and out from the job site, with end-of-shift sign-off - See your hours and pay - Tasks, visits and daily reports - Works offline and syncs when signal returns
Time clock, safety, invoicing & job costing built for trades crews & offices.
Seastack Book is the all-in-one workforce and bookkeeping app built for trades businesses — plumbing, mechanical, HVAC, electrical, and construction. Run your crew in the field and your books in the office from one place. FOR THE FIELD • Dead-zone time clock — crews clock in and out even with no signal; punches sync the moment they're back online. • Geofenced job sites and automatic break handling for accurate hours. • Safety, sorted — toolbox talks, site FLHA hazard assessments, and an injury/incident log your crew completes on their phone. • Field captures, no prices — foremen log work orders and material orders without ever seeing customer pricing. • Change requests from the jobsite, so extra work never goes unbilled. FOR THE OFFICE • Professional invoices with GST + PST by province, recurring billing, and partial-payment tracking. • Turn field work orders into invoices and material orders into purchase orders with one tap. • Job costing and labour margins so you know what every job actually made. • Estimates and multi-option quotes customers can choose from. • Crew payroll from real clocked hours. BUILT TO JUST WORK • Installs like a native app and works offline. • One-tap Google sign-in. • Separate logins for owners, office staff, and field crews — everyone sees only what they should. • Available in multiple languages. Whether you're a one-truck operator or running multiple crews, Seastack Book replaces the pile of spreadsheets, paper timesheets, and disconnected tools with a single app made for how trades actually work. Start free and get your crew on the clock today.