Tools for the trades
Apps for contractors, plumbers, fire alarm techs, truck drivers and opticians.
Ask Donnie, free to download
Ask Donnie is a construction estimator, building-code assistant and project back office for the trades. Ask about codes, materials and methods and get answers with code citations scoped to your jurisdiction. Scan or import a plan and Ask Donnie reads the scope and returns a priced estimate.
Cited code answers
Ask about codes, materials or methods. Answers cite the building-code edition adopted where you're working, based on the ZIP code you set.
Plan to priced estimate
Scan blueprints with the camera, choose a photo or import a PDF, pick the trade and tap Estimate. Reading a plan uses a few cents from your wallet.
Meeting recording and summaries
Record a meeting and get a transcript with speaker labels and a summary of decisions and action items, filed to the right project.
Field calculators
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DWV Pro
Productivity
Size drain, waste and vent pipe from fixture units.
Free download with a one-time unlock
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AlarmAmps
Productivity
Fire alarm battery and NAC voltage drop calcs on your phone.
Free download with a one-time unlock
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TandemIQ
Productivity
Which way to slide the tandems, and how many holes.
Free download with a one-time unlock
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LensWright
Medical
Optician math: transposition, vertex, prism and thickness.
Free download with a one-time unlock
Free web calculators
The free part of three of these apps also runs in your browser, with the same math as the app.
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DWV pipe size calculator
Fixture units to minimum drain, branch or stack size. Free, from DWV Pro.
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Open
Fire alarm battery calculator
Standby and alarm amp-hours with the work shown. Free, from AlarmAmps.
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Axle weight and tandem slide calculator
Check a scale ticket and get how many holes to slide. Free, from TandemIQ.