Coil Inductance Calculator vs Calculation Transformers
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Coil Inductance Calculator
Quickly and accurately calculate the inductance of various coil types. This app provides practical results for electronics hobbyists, students, and engineers with a clean, easy-to-use interface and helpful diagrams.
- Fast inductance calculations
- Simple input for coil parameters
- Clear visual coil diagram
- Calculation history
- Reference information
- Clean user interface
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Calculate coil inductance quickly and accurately with Coil Inductance Calc. Designed for electronics hobbyists, RF builders, students, and engineers, this app helps you estimate inductance for common coil types with a clean, fast, and easy-to-use interface. Whether you are designing an air-core inductor, checking a solenoid, or comparing winding dimensions, Coil Inductance Calc gives you practical results without unnecessary complexity. Features • Fast inductance calculations for common coil types • Simple input for turns, diameter, length, and wire-related values • Clear visual coil diagram for easier understanding • Calculation history for reviewing previous results • Helpful reference information inside the app • Clean interface suitable for beginners and advanced users • Useful for RF projects, DIY electronics, education, and prototyping Who it’s for • Electronics hobbyists • Amateur radio operators • Students and teachers • Circuit designers • Makers and DIY builders Use Coil Inductance Calc to save time, reduce guesswork, and make coil design easier wherever you are. About Inductors An inductor—also known as a coil, choke, or reactor—is a passive electrical component that stores energy in a magnetic field when current flows through it. When the current changes, the magnetic field varies, inducing a voltage in the wire (Faraday’s Law of Induction). By Lenz’s Law, this induced voltage opposes changes in current, which is why inductors play a key role in circuits. Take the guesswork out of coil calculations with Coil Inductance Calculator—a simple, reliable tool for students, hobbyists, and professionals. Thanks for your support! Visit nitrio.com for more great apps for your iOS devices.
Calculation Transformers
This electrical engineering tool simplifies complex transformer calculations for students and professionals. It offers fast, accurate results in an easy-to-understand format, aiding in design, maintenance, and analysis.
- Fast transformer calculations
- Clear input structure
- Accurate results
- Design and troubleshooting aid
- User-friendly interface
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Calculation Transformers is a practical electrical engineering tool designed to help calculate important transformer parameters quickly and accurately. It is suitable for students, technicians, and professionals working with transformer design, maintenance, and analysis. The app simplifies complex electrical formulas and provides reliable outputs in an easy-to-understand format. With a clean interface and fast processing, it becomes a handy reference for daily engineering tasks. Key Features: Fast transformer-related calculations Clear and structured inputs Accurate and easy-to-read results Helpful for design and troubleshooting User-friendly interface Calculation Transformers supports efficient planning and understanding of transformer performance, making it a valuable companion for electrical work. in-app purchase included Lifetime to unlock all calculation and remove ads Privacy Policy : https://docs.google.com/document/d/1Dn1gNdDP2AHL7sg-px4rxdLAcoGHlNB8/edit#heading=h.1ionsc3v3xmq Terms and Condition : https://docs.google.com/document/d/1t-LREPKByKaM0UkbIo4o0E1gdAYs21Oe30EfGxenEss/edit?usp=sharing
Screenshots
Verdict
The clearest difference is price: Calculation Transformers at Free against Coil Inductance Calculator's $2.99. Calculation Transformers also leads on rating (5.0 vs 3.7) and update cadence (every 5 months vs every 31 months). Coil Inductance Calculator's advantage is in-app purchases (none vs 1) and ratings volume (7 vs 1). On ads 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
Calculation Transformers is free to download; Coil Inductance Calculator costs $2.99 up front. Calculation Transformers sells 1 one-off in-app purchase. Coil Inductance Calculator asks for nothing beyond the download.
Calculation Transformers holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: Coil Inductance Calculator has 7 ratings behind it against 1, so its average is the more settled of the two.
Coil Inductance Calculator ships an update every 31 months, Calculation Transformers every 5 months. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.
| Parameter | Coil Inductance Calculator | Calculation Transformers |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 3.7 (7 ratings) | 5.0 (1 ratings) — better |
| Number of ratings | 7 — better | 1 |
| Update frequency | Every 31 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 56 MB |
| Age rating | 4+ | 4+ |
| Developer | Nitrio | Nanjibhai Gorasiya |
In-app purchases
Coil Inductance Calculator
No in-app purchases
Calculation Transformers
- Lifetime premium$9.99
Questions
Is Coil Inductance Calculator free?
Is Calculation Transformers free?
Which has better reviews, Coil Inductance Calculator or Calculation Transformers?
Do Coil Inductance Calculator or Calculation Transformers have ads?
Which is updated more often, Coil Inductance Calculator or Calculation Transformers?
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