UnitStation Pro - Engineering
iOS Universel / Utilitaires
Smart Unit Converter Pro is the all-in-one engineering toolkit
built for engineers, technicians, construction professionals,
and engineering students who need speed, accuracy, and offline
reliability in the field or at the desk.
UNIVERSAL UNIT CONVERTER
Convert across 14 engineering categories and 100+ units -
Length, Area, Volume, Mass, Temperature, Pressure (PSI, kPa,
bar, atm), Force, Torque, Velocity, Flow Rate (GPM, SCFM,
m3/hr), Power (hp, kW, BTU/hr), Energy, Electrical, and
Density. Every conversion is instant with real-time updates,
a full multi-unit table, and one-tap copy or save.
NATURAL LANGUAGE INPUT
Type conversions the way engineers say them:
150 psi to kPa
500 GPM to m3/hr
100 hp to kW
The app detects the source and target units automatically and
returns the result immediately, with support for common
engineering abbreviations.
ENGINEERING CALCULATOR LIBRARY
A searchable library of ready-to-use engineering calculators:
- Reynolds Number and flow regime detection
- Darcy-Weisbach pressure drop
- Pipe flow velocity
- Simply supported and cantilever beam analysis
- Concrete volume and material estimation
- Ohm's Law (solve for any variable)
- Single and three-phase AC power
- Heat transfer (Newton's Law of Cooling)
- Pump hydraulic and shaft power
- Motor full-load amperes
More calculators added with every update.
FORMULA REFERENCE LIBRARY
A searchable formula database covering Fluid Mechanics,
Thermodynamics, Structural and Civil Engineering, Electrical
Engineering, Mechanical Engineering, and Engineering
Mathematics. Every formula includes variable definitions,
units, and engineering notes you can bookmark as favorites.
ENGINEERING REFERENCE DATABASE
Offline material property tables for Steel, Aluminum, Copper,
Brass, Titanium, PVC, HDPE, Concrete, and more - including
density, Young's modulus, yield strength, thermal conductivity,
specific heat, and electrical resistivity. Physical constants
library includes gravity, gas constant, Boltzmann constant,
Stefan-Boltzmann constant, and 15 others.
AI ENGINEERING ASSISTANT
Ask any engineering question in plain language and get a
precise, formula-driven answer. Connect your own API key to
use any major AI provider:
- Local (fully offline, no key required)
- OpenAI (GPT-4o, GPT-4o Mini, GPT-3.5)
- Anthropic (Claude Sonnet, Claude Haiku)
- Groq (Llama 3.3, Mixtral - ultra-fast, free tier)
- Grok by xAI (Grok-2)
- Google Gemini (2.0 Flash, 1.5 Pro - free tier)
- Mistral (Large, Small, Codestral)
Your API key is stored on your device only and never shared.
OCR CAMERA SCANNER
Point your camera at any equipment label, gauge, or nameplate.
The app reads values like 150 psi, 500 GPM, or 75 hp and
instantly offers conversion options via a bottom sheet. Powered
by Apple's Vision framework with no cloud upload required.
ENGINEERING WORKSPACES
Organize your work by project. Each workspace saves your
conversions, calculation results, and notes in one place.
Export any workspace as a text report to share with your team.
DESIGNED FOR PROFESSIONAL USE
- Works fully offline - no internet required for core features
- Dark mode with a vibrant engineering color palette
- Large, readable monospaced numbers
- iPad and iPhone support in all orientations
- SwiftData persistence - your history is always there
Whether you are sizing a pump, checking a pipe pressure drop,
verifying a beam deflection, or just converting units on the
job site, Smart Unit Converter Pro gives you the right answer
fast.
