Arc Flash Label Calculator vs Transformer Calculator.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Arc Flash Label Calculator
Calculate and generate arc flash labels for electrical equipment. Input data to produce PDF labels based on NFPA 70E standards, including incident energy and approach boundaries. Supports various circuit breakers, fuses, and voltage levels.
- Arc flash label calculation
- NFPA 70E Annex D.4 methodology
- Support for MCCB, ICCB, LSI, and fuses
- Calculates Incident Energy, Arc Flash Boundary, Approach Boundaries
- Generates PDF labels (4 per sheet)
- Supports low, medium, and high voltage equipment
- Custom configurations for gap, distance, and time
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An easy to use develop arc flash label calculator and label generator. Input the necessary information into the app and it will generate a PDF label using NFPA 70E Annex D.4 (VAC) arc flash label calculations & methodology. Support for circuit breakers: MCCB, ICCB & LSI (Electronic LVPCB) and fuses by Cooper Bussmann and Ferraz-Shawmut including Classes: RK1, RK5, L, J, CC, T & H. Wide support for different overcurrent protection devices and pre-programmed models are setup for easy use. Custom configurations are supported by adjustments conductor gap, working distance and arcing time. Arc flash label calculates and includes: Incident Energy [cal/cm^2], Arc Flash Boundary, Limited Approach Boundary, Restricted Approach Boundary, Hazard Risk Category, voltage and short circuit current. Labels output 4 per sheet using standard 4 label template. Develop arc flash labels for low, medium and high voltage three phase equipment up to 15,000VAC and 1,000VDC. High voltage package required for voltages over 220V. Quick preset options to support major international standards. Requires Mail app configured for outgoing email.
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 rating: Transformer Calculator. at 4.8 against Arc Flash Label Calculator's 3.5. Transformer Calculator. also leads on ratings volume (49 vs 6). Arc Flash Label Calculator's advantage is ads (none vs shown) and update cadence (fortnightly vs every 4 months). On price 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. Arc Flash Label Calculator sells 1 one-off in-app purchase and Transformer Calculator. sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Transformer Calculator. holds the better App Store score, 4.8 against 3.5. That said, the two scores are not equally well evidenced: Transformer Calculator. has 49 ratings behind it against 6, so its average is the more settled of the two.
Arc Flash Label Calculator ships an update fortnightly, Transformer Calculator. every 4 months. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.
| Parameter | Arc Flash Label Calculator | Transformer Calculator. |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (6 ratings) | 4.8 (49 ratings) — better |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 6 | 49 — better |
| Update frequency | Fortnightly — better | Every 4 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 20 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Octagon Seven LLC | V PUGAZHENTHI |
Customer experience
Arc Flash Label Calculator
Transformer Calculator.
In-app purchases
Arc Flash Label Calculator
- Unlock High Voltage Arc Flash$19.99
Transformer Calculator.
- Go Pro$3.99
Questions
Is Arc Flash Label Calculator free?
Is Transformer Calculator. free?
Which has better reviews, Arc Flash Label Calculator or Transformer Calculator.?
Do Arc Flash Label Calculator or Transformer Calculator. have ads?
Which is updated more often, Arc Flash Label Calculator or Transformer Calculator.?
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