Overhead Install Guide vs Transformer Calculator.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Overhead Install Guide
This utility app offers Southwire's official recommendations for installing overhead transmission electrical conductors. It provides essential field information and includes a calculator for determining bullwheel and block diameters.
- Overhead conductor installation recommendations
- Information from Overhead Conductor Manual
- Industry standard IEEE 524 data
- Bullwheel and block diameter calculator
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This app provides Southwire’s recommendations for the installation of overhead transmission electrical conductors. It is a convenient way to have the information you need for a successful installation with you in the field. Features: Recommendations for the installation of overhead transmission electrical conductors. Information from our Overhead Conductor Manual and the industry accepted standard IEEE 524. Calculator to determine the minimum diameter of the bullwheel and blocks needed for installation.
Transformer Calculator.
This app simplifies transformer calculations for engineers and students. It accurately computes primary and secondary currents, turns ratios, and secondary voltages based on user inputs for transformer ratings and winding turns.
- Primary and secondary current calculations
- Turns ratio determination
- Transformer type identification
- Secondary voltage calculation
- Supports 1Φ and 3Φ phases
- User-friendly interface
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Transformer Calculator: A user-friendly app for Current and Voltage Calculations. Current Calculations • Calculate primary and secondary full-load currents. • Determine the turns ratio and transformer type. How it works: 1. Select the phase type (1Φ or 3Φ). 2. Input transformer ratings (VA/kVA) and primary/secondary voltages. Outputs: • Primary full-load current • Secondary full-load current • Turns Ratio: N1 / N2 = V1 / V2 = I2/ I1 Voltage Calculations How it works: 1. Enter Number of turns in the primary and secondary windings 2. Input Primary voltage Outputs: • Secondary voltage • Turns Ratio: N1 / N2 = V1 / V2 = I2/ I1 Effortless and Accurate: Perfect for engineers and students to compute transformer parameters precisely.
Screenshots
Verdict
The clearest difference is in-app purchases: Overhead Install Guide at none against Transformer Calculator.'s 1. Overhead Install Guide also leads on ads (none vs shown). Transformer Calculator.'s advantage is rating (4.8 vs 4.6) and update cadence (every 4 months vs every 9 months). On price, 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
Both are free to download. Transformer Calculator. sells 1 one-off in-app purchase. Overhead Install Guide asks for nothing beyond the download.
Transformer Calculator. holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Transformer Calculator. has 48 ratings behind it against 5, so its average is the more settled of the two.
Overhead Install Guide ships an update every 9 months, Transformer Calculator. every 4 months. The most recent releases landed on October 6, 2026 and October 10, 2026 respectively.
| Parameter | Overhead Install Guide | Transformer Calculator. |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (5 ratings) | 4.8 (48 ratings) — better |
| Number of ratings | 5 | 48 — better |
| Update frequency | Every 9 months | Every 4 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.6 — better | 17.6 |
| Further details — not scored | ||
| Size | 21 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Southwire Company | V PUGAZHENTHI |
Customer experience
Overhead Install Guide
Transformer Calculator.
In-app purchases
Overhead Install Guide
No in-app purchases
Transformer Calculator.
- Go Pro$3.99
Questions
Is Overhead Install Guide free?
Is Transformer Calculator. free?
Which has better reviews, Overhead Install Guide or Transformer Calculator.?
Do Overhead Install Guide or Transformer Calculator. have ads?
Which is updated more often, Overhead Install Guide or Transformer Calculator.?
Other comparisons
