Electrical Formulator vs Electrical Engineering
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Electrical Formulator
This app provides a comprehensive suite of electrical calculation tools for design and engineering challenges. It offers hundreds of conversion and calculation options, with features to save, print, and email results. Easily access frequently used and recently accessed formulas, with all calculations automatically stored.
- Over 100 electrical formulas
- Save and organize results
- Share results via email or print
- Access most-used and recent formulas
- Supports US/Imperial and metric units
- Formula categories for batteries, motors, transformers, and more
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Electrical Formulator: Your Complete Electrical Calculation Tool Solve virtually any electrical design or engineering challenge with this powerful and intuitive electrical formulator. Packed with hundreds of conversion and calculation tools, it’s the most versatile utility in your toolkit. Save, print, or email your results. Easily access your most-used and recently used formulas. Every calculation is automatically saved for future reference. Key Features: • Instant access to over 100 professional-grade electrical formulas • Save and organize your results for later reference • Share results via email or print • Highlights your most-used and recent formulas • Designed for engineers, electricians, and energy professionals Formula Categories: Batteries • Starting motor amperage • Number of cells required • Estimated operating time Cost Calculations • Appliance and lighting energy usage • Estimated usage hours for new bulbs • Insulation payback period BTU Conversions • BTU to joules, horsepower-hr, watt-hr, calories, foot-pounds, and more Generator Calculations • DC generator output • Generator amperage and efficiency Impedance & Reactance • Resistance & reactance combinations • Inductive and capacitive reactance • Total impedance and parallel circuits Kilowatts & Joules • Convert kilowatts to BTU/hr, joules/sec, lumens, horsepower, megajoules/hr, and more Motors • Single- and three-phase motor calculations • Locked rotor current • Motor kVA (including multiple input scenarios) • Motor speed analysis Ohm’s Law • Calculate for power, voltage, resistance, or current Transformers • Primary and secondary amperage • Full-load transformer sizing (208V, 240V, 480V for single and three-phase) • Impedance and amperage capacity calculations Voltage Drop • Copper and aluminum wire voltage drop (1-phase and 3-phase) • US/Imperial and metric units supported Wiring & Conduits • Wire size and resistance (copper and aluminum) • Wire length calculations • Conduit sizing Whether you’re working in the field, the lab, or the classroom, this electrical formulator helps you work faster, smarter, and with confidence. Users are able to calculate twelve formulas for FREE. Purchase a subscription to calculate additional formulas. All subscriptions come with a 1-WEEK FREE TRIAL and SUPPORT Family Sharing.
Electrical Engineering
This app provides electrical calculations and fundamental concepts for students and professionals. It covers Ohm's Law, power calculations, circuit analysis, and advanced topics like wire sizing and power factor correction.
- Electrical calculations
- Basic electrical knowledge
- Advanced electrical topics
- Ohm's Law and power calculations
- Circuit analysis theorems
- Wire sizing and voltage drop
- Resistor color codes
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Electrical engineering for technical school and college: theory, formulas and calculators explained clearly. WHY CHOOSE IT • In-depth theory for every component and circuit • Calculators for every formula • Quizzes, mind maps and flashcards for revision • AI Scanner: turn your notes into maps and solve problems TOPICS • Direct current: Ohm's law, Kirchhoff's laws • Alternating current: phasors, impedance • Components: resistors, capacitors, inductors • Circuits: series, parallel, RLC • Electric machines: motors, transformers, generators • Electronics: diodes, transistors, semiconductors STUDY TOOLS • Calculators, quizzes, mind maps, flashcards, archive IDEAL FOR Technical school students and electrical engineering majors. Start studying electrical engineering the easier way today. SUBSCRIPTIONS AND TERMS Full access is available via auto-renewable subscription: • Monthly Subscription • Annual Subscription Prices are shown in the app at purchase and may vary by region. Payment will be charged to your Apple ID at confirmation of purchase. The subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours of the end of the current period. Subscriptions can be managed and auto-renew turned off in your Apple ID Account Settings after purchase. Privacy Policy: https://masterapps.it/privacy_policy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
Electrical Formulator and Electrical Engineering both sit at 5.0 stars, but that hides the real split: 74% of Electrical Engineering's written reviews are positive against 16% of Electrical Formulator's. Electrical Engineering also leads on ratings volume (11 vs 1) and iOS requirement (15.5 vs 18.4). Electrical Formulator's advantage is ads (none vs shown). On price, rating, update cadence and in-app purchases 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. Electrical Formulator sells 1 one-off in-app purchase and Electrical Engineering sells 7 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for Electrical Formulator against 4.9 for Electrical Engineering. That said, the two scores are not equally well evidenced: Electrical Engineering has 11 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 16% of Electrical Formulator's written reviews are positive against 74% of Electrical Engineering's.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 3, 2026 and September 22, 2026 respectively.
| Parameter | Electrical Formulator | Electrical Engineering |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.9 (11 ratings) |
| Positive reviews | 16.1% of reviews | 73.9% of reviews — better |
| Number of ratings | 1 | 11 — better |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.4 | 15.5 — better |
| Further details — not scored | ||
| Size | 16 MB | 115 MB |
| Age rating | 4+ | 4+ |
| Developer | Historycentral.com | Carlo Terracciano |
Customer experience
Electrical Formulator
Electrical Engineering
In-app purchases
Electrical Formulator
- Pro Features For Electrcial$1.99
Electrical Engineering
- Monthly subscription - Electro$3.991 Month
- Monthly subscription - Electro$5.991 Month
- Annual Subscription Electronic$8.991 Year
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- Annual Subscription Electronic$24.991 Year
- Annual Subscription Electronic1 Year trial$24.991 Year
- Lifetime Subscription Electro$29.99
- Lifetime Subscription Electro$99.99
Questions
Is Electrical Formulator free?
Is Electrical Engineering free?
Which has better reviews, Electrical Formulator or Electrical Engineering?
Do Electrical Formulator or Electrical Engineering have ads?
Which is updated more often, Electrical Formulator or Electrical Engineering?
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