Flyback Transformer Designer vs Transformer Calculation Tool
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Flyback Transformer Designer
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Flyback Transformer Designer turns your flyback power supply spec into a complete transformer design β core, gap, turns, wire gauge, and loss breakdown β all computed locally on your device, no internet required. Built for power-electronics engineers who need more than a spreadsheet. Covers all four operating modes: DCM, BCM, QR, and CCM. Supports multi-output secondaries with independent winding design, not a simplified single-output approximation. Three steps to a finished design: 1. Enter your spec β Vin range, output voltages, power, frequency, and design constraints. 2. Review the top 5 core candidates β gap, Lm, winding layout, wire selection, copper/core losses, and temperature-rise estimates; switch the ranking between balanced, high-reliability, or lowest-loss. 3. Export a professional summary report (PDF or JSON). Why you'll like it: - Full core Γ turns Γ wire-gauge iteration with built-in AP pre-screening β no more flipping through datasheets by hand. - Optional B_max design ceiling β leave it blank and the engine guards against saturation automatically using the material's BsatΓ70% margin, so an overly conservative guess won't rule out viable designs; set your own ceiling anytime for an extra constraint. - Built-in ferrite core library (EE, RM, PQ, ETD, etc.) plus My Database for your own materials, cores, and bobbins. - Parameter sweep β explore f_sw, load, and Vin sensitivity curves before you wind a single turn. - 100% local computation; your data never leaves your device. - Native support for iPhone, iPad, and Mac (Apple silicon); switch between Chinese and English. 3-day full-feature trial from first launch β you are not charged when it ends. After the trial, a one-time App Store purchase unlocks steps 2β3, My Database editing, and export. This is not a subscription and does not auto-renew. Existing annual subscriptions remain valid until they expire. Privacy Policy: https://tobebetter2026.github.io/Public-documents-Flyback-Transformer-Designer/privacy-policy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ (Apple Standard EULA)
Transformer Calculation Tool
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Easy Transformer Calculator is a practical and accurate tool designed for electricians, engineers, technicians, and students. Perform transformer calculations instantly with a clean and easy-to-use interface. Whether you're working with electrical systems, power distribution, or learning transformer theory, this app helps simplify complex calculations and improve accuracy. Key Features: β’ Transformer voltage and current calculations β’ Turns ratio and power estimation β’ Supports electrical engineering formulas β’ Fast, accurate, and easy-to-use interface β’ Ideal for students, electricians, and professionals β’ Useful for industrial and educational applications Save time, reduce calculation errors, and simplify transformer analysis with Easy Transformer Calculator. in-app purchase included Lifetime to Remove Ads Privacy Policy : https://docs.google.com/document/d/1A79qPsEUJu1rXjqsSUct_IBBAewiuBK5b8Dz-SPD0CY/edit?usp=sharing Terms & Condition : https://docs.google.com/document/d/1_yiolHxlRnOnEZk_sgPThQ0hggtlZAKCM6NvqDOE8Gs/edit?usp=sharing
Screenshots
Verdict
The clearest difference is update cadence: Transformer Calculation Tool at every 4 weeks against Flyback Transformer Designer's every 2 months. Transformer Calculation Tool also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Flyback Transformer Designer sells 1 in-app purchase, starting at $29.99 per year and Transformer Calculation Tool sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Flyback Transformer Designer ships an update every 2 months, Transformer Calculation Tool every 4 weeks. The most recent releases landed on September 23, 2026 and September 16, 2026 respectively.
| Parameter | Flyback Transformer Designer | Transformer Calculation Tool |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 4 weeks β better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod, Mac β better | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 β better |
| Further details β not scored | ||
| Size | 8 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | ε»ΊεΏ εΎ | Shraddhaben Parmar |
In-app purchases
Flyback Transformer Designer
- Annual subscription14 Days trial$29.991 Year
Transformer Calculation Tool
- Lifetime premium$9.99
Questions
Is Flyback Transformer Designer free?
Is Transformer Calculation Tool free?
Do Flyback Transformer Designer or Transformer Calculation Tool have ads?
Which is updated more often, Flyback Transformer Designer or Transformer Calculation Tool?
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