Comparison

PTI Transformer vs Electrical Tools & Reference

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

Head to head
About

PTI Transformer

This app calculates electrical transformer performance metrics like current, voltage, efficiency, and regulation. It also offers SI/Metric conversions for various physical quantities and includes a tool for estimating ship dates based on order time.

Highlights
  • Transformer current, voltage, efficiency, and regulation calculation
  • SI/Metric unit conversions
  • Speed, force, power, area, pressure, volume, temperature, weights & measures conversions
  • Ship date estimation tool
  • Information about the developer
Features
Read full description

PTI "Transform"er calculates electrical transformer current, phase voltage, efficiency & regulation at various loads and power factors and provides SI/Metric conversions for Speed, Force, Power, Area, Pressure, Volume, Temperature, Weights & Measures. A handy calculator for determining ship date from any date using weeks after order (ARO) is also included. Interesting facts about PTI and what we do appear as you navigate through the application. Disclaimer: All conversions if used for critical calculations should be verified with a secondary source.

About

Electrical Tools & Reference

Features
Read full description

Master electricity, circuits, and real-world wiring! Whether you're a student, apprentice, or working electrician, this comprehensive app is your go-to resource for understanding and applying electrical engineering concepts. Learn electrical theory, explore detailed wiring diagrams, and use handy tools to make everyday electrical work easier and more accurate. All-in-One Electrician’s Toolkit Learn Electrical Basics – Voltage, current, resistance, power, Ohm’s & Kirchhoff’s laws, grounding, and more Interactive Wiring Diagrams – Switches (SPST, DPST, intermediate), socket and lighting circuits, sensors, and motor connections (star/delta, capacitor, contactors) Built-In Calculators – Power, current, voltage, resistance, energy costs, resistor codes, and essential electrical formulas Schematic Symbols Library – Standard electronics symbols: resistors, capacitors, fuses, diodes, transistors, and more Clear, Practical Learning Simple, real-world explanations for beginners and pros alike Visual diagrams and field-ready schematics for easy understanding Practice your knowledge with quizzes and electrical tests Covers both theory and hands-on electrical installation cases Perfect For: Electrical engineering students & apprentices Electricians and field technicians Instructors and vocational trainers DIY enthusiasts with technical curiosity Why Choose This App? Electrician Handbook has been trusted for its practical approach to electrical education. Everything you need – from core concepts to practical applications – in one easy-to-use guide. In-app purchase Details: Monthly Subscription Lifetime Subscription Privacy Policy : https://applicationcontent.wordpress.com/privacy-policy/ Terms of use : https://applicationcontent.wordpress.com/terms-of-use/

Screenshots

PTI Transformer4 screens
Electrical Tools & Reference4 screens

Verdict

The call

The clearest difference is in-app purchases: PTI Transformer at none against Electrical Tools & Reference's 2. Electrical Tools & Reference's advantage is update cadence (every 3 weeks vs every 11 months). On price, ads, device support and iOS requirement 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. Electrical Tools & Reference sells 2 in-app purchases, starting at $2.99 per month. PTI Transformer asks for nothing beyond the download.

UpkeepUpdate frequency

PTI Transformer ships an update every 11 months, Electrical Tools & Reference every 3 weeks. The most recent releases landed on June 24, 2026 and September 18, 2026 respectively.

Scorecard2 real differences · 7 level
PTI Transformer versus Electrical Tools & Reference: the parameters behind the verdict, then further details
ParameterPTI TransformerElectrical Tools & Reference
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 11 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.012.0
Further details — not scored
Size3 MB88 MB
Age rating4+4+
DeveloperPush Interactions, Inc.Ashvin Kevadiya

In-app purchases

None

PTI Transformer

No in-app purchases

2 purchases

Electrical Tools & Reference

Subscriptions1
  • Monthly$2.991 Month
One-time1
  • Lifetime Premium$3.99

Questions

Is PTI Transformer free?
PTI Transformer is free to download, with no in-app purchases.
Is Electrical Tools & Reference free?
Electrical Tools & Reference is free to download, with in-app purchases available.
Do PTI Transformer or Electrical Tools & Reference have ads?
Neither PTI Transformer nor Electrical Tools & Reference shows ads.
Which is updated more often, PTI Transformer or Electrical Tools & Reference?
PTI Transformer ships an update every 11 months, and Electrical Tools & Reference every 3 weeks. Most recently, PTI Transformer was updated on June 24, 2026 and Electrical Tools & Reference on September 18, 2026.

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