Electronic Formulator vs Thermal Insulation Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Electronic Formulator
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Electronic Engineer puts over 1,100 formulas and 24 reference tables in your pocket. No internet required. No ads. Just fast, accurate calculations when you need them. POWERFUL CALCULATORS Solve real-world electrical problems instantly: • Ohm's Law — Voltage, current, resistance, and power calculations • Voltage Divider — Output voltage, resistor values, current, and power dissipation • Three-Phase Power — Balanced systems, Wye and Delta connections • LED Circuits — Series resistor selection, power dissipation, max LEDs in series • 555 Timer — Astable and monostable modes with frequency, duty cycle, and timing • RLC Circuits — Resonant frequency, Q factor, bandwidth, impedance, and reactance • Power Triangle — Real, reactive, and apparent power with PF correction sizing • Impedance & Resistance — AC/DC circuit analysis • Star-Delta Conversion — Transform between Y and Δ configurations • Wheatstone Bridge — Unknown resistance and unbalanced bridge voltage • Inductors — Reactance, energy storage, series/parallel, and time constants • Wire Sizing — Circular mils, voltage drop (single and three-phase) • Capacitors, Transformers, Motors, Batteries, UPS, Lighting, and more PRO CALCULATORS Unlock advanced tools for professionals: • Op-Amp Circuits — Inverting, non-inverting, differential, and voltage follower • Filter Design — RC and RL low-pass, high-pass, and bandpass filters • PCB Trace Width — IPC-2221 current capacity and trace resistance • Skin Effect — Depth calculations for copper and custom conductors 24 REFERENCE TABLES Instantly look up critical data — no more flipping through handbooks: • AWG Wire Gauge — Diameter, area, resistance, and ampacity • NEC Ampacity Table — 60°C, 75°C, and 90°C conductor ratings • Resistor Color Codes — 4-band and 5-band decoding • Standard Resistor Values — E12, E24, E48, and E96 series • Circuit Breaker Sizes — Amp ratings, wire sizes, and typical applications • Wiring Color Codes — NEC, IEC, and Australian standards • Logic Gates Truth Tables — AND, OR, NAND, NOR, XOR, XNOR • Transformer Connections — Delta, Wye, Scott-T, Zig-Zag, and more • Power Factor Reference — Typical PF for motors, lighting, drives, and loads • SI Prefixes — From tera to femto with electronics examples • Conductor Properties — Resistivity, conductivity, and temp coefficients • Common Semiconductor Pinouts — BJTs, MOSFETs, regulators, 555, 741 • NEMA Enclosure Types — Indoor/outdoor ratings with IP equivalents • IP Protection Ratings — Solids and liquids protection levels • Ampacity Derating Factors — Temperature and conduit fill corrections • Standard Capacitor Values — Ceramic, film, and electrolytic • Cable Types — THHN, THWN, NM-B, MC, UF-B, and more • Decibel Reference — Power and voltage ratios at a glance • Motor Frame Sizes, Fuse Classes, Conduit Fill, and more UNIT CONVERSIONS Over 400 conversion formulas across 19 categories including metric, linear, liquid, cubic, pressure, weight, flow, BTU, horsepower, watts, joules, frequency, and HVAC. Plus 8 temperature scales: Celsius, Fahrenheit, Kelvin, Rankine, Réaumur, Delisle, Newton, and Rømer. BUILT FOR YOUR WORKFLOW • Favorites — Star the calculators you use daily for one-tap access • Calculation History — Every result saved automatically for easy reference • Export & Share — Send results to colleagues or save for documentation • Search & Filter — Find any formula or reference table in seconds • Dark Mode — Designed for comfortable use on job sites and in the field • US & Metric — Toggle between unit systems instantly WHY ELECTRONIC ENGINEER? Built by engineers, for engineers. We obsessed over accuracy, speed, and completeness so you can focus on what matters — getting the job done right. One purchase, no subscriptions, no recurring fees.
Thermal Insulation Calculator
This tool simplifies complex thermal insulation estimations for professionals, students, and learners. It provides clear insights for planning and understanding insulation tasks with a user-friendly interface.
- Thermal insulation calculations
- Estimation support
- Educational insights
- User-friendly interface
- Beginner and professional support
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Thermal Insulation Calculator is a practical and easy-to-use tool designed to support professionals, students, and learners working with thermal insulation calculations. The app helps simplify complex insulation estimations and provides clear, educational insights for planning and understanding insulation tasks. Built for both learning and practical reference, the calculator presents inputs and results in a clean, structured format, making calculations easier to follow and interpret. It serves as a helpful resource for beginners who want to understand insulation principles, as well as experienced professionals who need quick and reliable estimates. For the best user experience, the app is optimized for devices with a minimum screen size of 4 inches (480×800), ensuring clear visibility of fields, calculations, and results. Key Highlights: Supports thermal insulation calculations and estimations Designed for educational and illustrative purposes Simple, clear, and user-friendly interface Helpful for both beginners and experienced professionals Improves understanding of insulation principles and decision-making Whether you are learning the basics or working on insulation planning, Thermal Insulation Calculator is a reliable companion for understanding and estimating insulation requirements efficiently. In app purchase included : Lifetime Premium Privacy policy : https://privacypolicy50.wordpress.com/privacy-policy-subscription/ Terms and condition :https://privacypolicy50.wordpress.com/terms-and-condition/
Screenshots
Verdict
The clearest difference is update cadence: Electronic Formulator at every 9 days against Thermal Insulation Calculator's every 13 months. Thermal Insulation Calculator's advantage is iOS requirement (13.0 vs 26.2). On price, ads, 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. Electronic Formulator sells 1 one-off in-app purchase and Thermal Insulation Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Electronic Formulator ships an update every 9 days, Thermal Insulation Calculator every 13 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.
| Parameter | Electronic Formulator | Thermal Insulation Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (4 ratings) — better |
| Number of ratings | — | 4 — better |
| Update frequency | Every 9 days — better | Every 13 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.2 | 13.0 — better |
| Further details — not scored | ||
| Size | 19 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | Historycentral.com | Shital Gorasiya |
In-app purchases
Electronic Formulator
- Electronic Pro$2.99
Thermal Insulation Calculator
- Lifetime Purchase$8.99
Questions
Is Electronic Formulator free?
Is Thermal Insulation Calculator free?
Do Electronic Formulator or Thermal Insulation Calculator have ads?
Which is updated more often, Electronic Formulator or Thermal Insulation Calculator?
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