MEP Toolbook

iPhone and iPad engineering calculator

MEP Toolbook

Fast, governed MEP calculations for day-to-day engineering review: Utilities, HVAC/MVAC, Electrical LV, and Plumbing & Drainage in one native app with saved calculations, exports, and optional Pro access.

Built for practical MEP checks.

MEP Toolbook keeps calculations, source governance, result notes, and exports inside one app instead of splitting HVAC, Electrical, and Plumbing work into separate products.

58governed calculator modules
11free starter tools
47Pro tools and workflows
4active disciplines at launch scope

One app, discipline filters.

The first MEP release keeps the existing HVAC/MVAC calculator depth and adds initial Electrical LV and Plumbing & Drainage tools under the same saved-calculation and export system.

HVAC/MVAC

Air-side, cooling and heating, water-side, equipment, acoustics, schedules, and handbook-gap screening tools.

Electrical LV

Demand-current, running-cost, power-factor correction, and voltage-drop calculators using app-owned SI equations and user-entered project assumptions.

Plumbing & Drainage

Water-storage, transfer-pump, and drainage-pipe capacity workflows using app-owned SI equations and user-entered project assumptions.

Utilities

Shared conversion support for common MEP engineering units, with SI and US/IP output conventions where applicable.

Native app workflow.

Browse by discipline, calculate with clear inputs and outputs, keep source notes visible, and export saved results for project records.

MEP Toolbook tool library on iPad
Discipline-aware calculator library.
MEP Toolbook calculator input and result screen on iPhone
Fast inputs and result review.
MEP Toolbook settings and standards profile screen on iPhone
Governance and standards-profile notes.

Release status.

The public website is live. The app is prepared locally for App Store packaging; availability depends on final Apple account release setup, beta testing, and review.

Local app build

Release build, regression tests, preflight checks, screenshots, and handoff package are prepared.

Public pages

Support, privacy policy, and terms pages are available with no tracking code and no backend account system.

App Store

Signed upload, subscriptions, pricing, TestFlight, and review remain Apple-account-bound release steps.