Comparison

Electronic Formulator vs Thermal Insulation Calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Electronic Formulator

Features
Read full description

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.

About

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.

Highlights
  • Thermal insulation calculations
  • Estimation support
  • Educational insights
  • User-friendly interface
  • Beginner and professional support
Features
Read full description

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

Electronic Formulator4 screens
Thermal Insulation Calculator4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 7 level
Electronic Formulator versus Thermal Insulation Calculator: the parameters behind the verdict, then further details
ParameterElectronic FormulatorThermal Insulation Calculator
PriceFreeFree
Rating—1.0 (4 ratings) — better
Number of ratings—4 — better
Update frequencyEvery 9 days — betterEvery 13 months
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.213.0 — better
Further details — not scored
Size19 MB57 MB
Age rating4+4+
DeveloperHistorycentral.comShital Gorasiya

In-app purchases

1 purchases

Electronic Formulator

One-time1
  • Electronic Pro$2.99
1 purchases

Thermal Insulation Calculator

One-time1
  • Lifetime Purchase$8.99

Questions

Is Electronic Formulator free?
Electronic Formulator is free to download, with in-app purchases available.
Is Thermal Insulation Calculator free?
Thermal Insulation Calculator is free to download, with in-app purchases available.
Do Electronic Formulator or Thermal Insulation Calculator have ads?
Neither Electronic Formulator nor Thermal Insulation Calculator shows ads.
Which is updated more often, Electronic Formulator or Thermal Insulation Calculator?
Electronic Formulator ships an update every 9 days, and Thermal Insulation Calculator every 13 months. Most recently, Electronic Formulator was updated on October 29, 2026 and Thermal Insulation Calculator on October 24, 2026.

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