Welcome to
Lempars Creations
Lempars Creations is an independent app development studio building practical tools for tradespeople and small businesses. Our apps are built by people in the trade — for people in the trade.
Save Time
Spend less time estimating and get your evenings back with the family.
Mobile First
Right from your phone or tablet — on-site or back in the office.
Professional Estimates
Clear, professional estimates you can send straight to your clients.
Built for the Trade
Designed around real carpentry workflows, by a working carpenter.
Price for Profit
Your own rates, materials and margins — so every job pays.
More than just an estimator.
Whether you're pricing a small renovation or a full residential build, BOB gives you the tools to estimate faster, price smarter, and run a more profitable trade business.
Estimators
Bathrooms, kitchens, decks, retaining walls, laundries, plaster and custom estimates.
Calculators
Rafters, pitch, right angles, stairs, concrete, volume and margins.
Branded Quotes
Professional PDF quotes with your own business logo.
Clients
Keep client details, estimates and job status in one place.
Calendar
See your schedule by month, week or day.
Reminders & Weather
Daily reminders and a local forecast on your dashboard.
Upcoming update schedule
BOB keeps getting better. Tap an update to see the full breakdown.
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Update 1 · October 2026
The October Update
- Pro+ team plan — invite your crew, assign jobs and see their updates
- Deck drawing board — draw your deck's real shape and BOB prices it
- Concrete estimator — garage slabs, footings and waffle pod slabs
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Update 2 · TBC
Details coming soon
The next update will be announced here shortly.
More info Planned -
Update 3 · TBC
Details coming soon
The next update will be announced here shortly.
More info Planned -
Update 4 · TBC
Details coming soon
The next update will be announced here shortly.
More info Planned
Watch BOB at work
From site measure to finished estimate in minutes.
Download BOB
Available now on Google Play, or use the web app in any browser.
Built by Lempars Creations
Lempars Creations is the home of BOB The Estimator — a purpose-built estimating app designed specifically for carpenters and small builders.