Engineer's Unit Converter vs Wire Color Codes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Engineer's Unit Converter
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A unit converter built for engineering work rather than for the kitchen. Thirty-two categories, from the everyday ones to the specialist tables you normally go looking for in a handbook: AWG wire gauge, tons of refrigeration, viscosity, water hardness, radiation dose, moment of inertia. EVERY CATEGORY, ALL FREE Length, Area, Pressure/Stress, Mass/Weight, Energy/Work, Power, Force, Torque, Volume, Temperature, Time, Speed, Angle, Data, Frequency, Fuel Economy, Density, Flow, Viscosity, Acceleration, Electric Current, Voltage, Resistance, Electric Charge, Magnetic Flux Density, HVAC Cooling, Water Hardness, Radiation Activity, Radiation Dose, Radiation Equivalent Dose, Moment of Inertia, Wire Gauge. No unlocks, no ad to watch first, no timer. Every category above is open the moment you install. ENGINEERING TOOLS An expression calculator that accepts arithmetic, fractions and scientific notation, so you can type 3/8 or 1.2e-3 straight into the field. An HVAC sizing helper that turns tons of refrigeration into BTU/h, kW and rule-of-thumb airflow. Reference tables for physical constants, thermocouple types and hardness scales. BUILT FOR THE JOB Works fully offline, so it does not care about signal on site. Reads decimal commas and points the way your region writes them. Pin the units you use, hide the ones you never touch, and reorder the rest. Add your own units with a conversion factor. Every conversion is kept in a searchable history you can tap to reuse. No account, no sign-in, no data leaves the device.
Wire Color Codes
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OHMLIFY - THE ELECTRICIAN'S BIBLE The most comprehensive wire color code reference app for professional electricians, electrical engineers, and apprentices. Works 100% offline - no internet required. WIRE COLOR CODES FOR 22 COUNTRIES Instantly look up wire colors for any standard: • IEC 60446 (International) • NEC / NFPA 70 (United States) • BS 7671 (United Kingdom) • DIN VDE 0100 (Germany) • NF C 15-100 (France) • CEI 64-8 (Italy) • AS/NZS 3000 (Australia) • And 15 more countries... Know exactly which wire is Live, Neutral, and Earth for single-phase and three-phase systems. 18 PROFESSIONAL WIRING DIAGRAMS Clear, zoomable diagrams for: • Ring Main Circuit (UK) • Radial Socket Circuit • Two-Way & Intermediate Switching • Star-Delta Motor Starter • RCD/RCBO Connection • Consumer Unit Layout • MCB & SPD Wiring • Three-Phase Supply • And more... 4 ELECTRICAL CALCULATORS (Pro) • Voltage Drop Calculator - Check NEC 3% compliance • Wire Size Calculator - Find correct AWG/mm² • Ohm's Law Calculator - V, I, R, P calculations • Power Calculator - Single & three-phase 36 ELECTRICAL SYMBOLS IEC 60617 standard symbols for: • Switches (single pole, double pole, two-way, dimmer) • Outlets & Sockets • Lighting fixtures • Protection devices (MCB, RCD, RCBO, SPD) • Motors & Wiring 100% OFFLINE Downloaded once, works forever. No internet needed. Perfect for: • Basements with no signal • Rural job sites • Underground work • International travel 16 LANGUAGES SUPPORTED Interface fully translated in English, German, French, Spanish, Italian, Polish, Dutch, Portuguese, Swedish, Norwegian, Danish, Finnish, Czech, Romanian, Greek, and Hungarian. OHMLIFY PRO Unlock all features: • All 16 country standards • Advanced calculators • All wiring diagrams • All electrical symbols • No advertisements Built by developers who listen to electricians. We update standards regularly and add features based on your feedback. Download now and have professional electrical reference at your fingertips - anytime, anywhere. --- Privacy Policy: https://app.cloudhonest.com/Ohmlify/privacy.html Terms of Use: https://app.cloudhonest.com/Ohmlify/terms.html Questions? support@cloudhonest.com
Screenshots
Verdict
The clearest difference is ads: Wire Color Codes at none against Engineer's Unit Converter's shown. On price, update cadence, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Engineer's Unit Converter sells 1 one-off in-app purchase and Wire Color Codes sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
Engineer's Unit Converter ships an update monthly, Wire Color Codes every 4 weeks. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.
| Parameter | Engineer's Unit Converter | Wire Color Codes |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Every 4 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 7 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Jose Gerardo Palma Duran | CLOUD HONEST LLC |
In-app purchases
Engineer's Unit Converter
- Remove Ads$0.99
Wire Color Codes
- Pro Monthly$2.991 Month
- Pro Annual$19.991 Year
- Ohmlify Pro$39.99
Questions
Is Engineer's Unit Converter free?
Is Wire Color Codes free?
Do Engineer's Unit Converter or Wire Color Codes have ads?
Which is updated more often, Engineer's Unit Converter or Wire Color Codes?
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