# Impedance Calculators vs Arduino Programming Tutorial

The clearest difference is in-app purchases: Arduino Programming Tutorial at none against Impedance Calculators's 1. Arduino Programming Tutorial also leads on update cadence (every 6 weeks vs every 21 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Impedance Calculators sells 1 one-off in-app purchase. Arduino Programming Tutorial asks for nothing beyond the download.

Impedance Calculators ships an update every 21 months, Arduino Programming Tutorial every 6 weeks. The most recent releases landed on August 30, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Impedance Calculators | Arduino Programming Tutorial |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (12 ratings)](https://appshunter.io/ios/app/impedance-calculators/id1571901358/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | — | 45.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 21 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 8 MB | 44 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) | [ALG Software Lab](https://appshunter.io/developer/1650561236) |

## What reviewers say

### Impedance Calculators

[App page](https://appshunter.io/ios/app/impedance-calculators/id1571901358)

This app provides 8 calculators for electrical impedance calculations. It covers various combinations of resistors, inductors, and capacitors in series and parallel circuits, offering formulas and circuit diagrams.

**Highlights:** Series impedance calculator, Parallel impedance calculator, R, L, & C circuit calculations, Includes formulas, Circuit diagrams provided, 8 distinct calculators

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### Arduino Programming Tutorial

[App page](https://appshunter.io/ios/app/arduino-programming-tutorial/id6446804186)

Learn Arduino programming with over 200 lessons, circuit diagrams, and code examples. Covers electronics, components, and C++ essentials for beginners and advanced users. Available in 14 languages.

**Highlights:** 200+ practical lessons, Circuit diagrams and wiring guides, Ready-to-use code examples, Interactive quiz questions, Covers 14 languages, Detailed component explanations, C++ programming essentials

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Impedance Calculators free?

Impedance Calculators is free to download, with in-app purchases available.

### Is Arduino Programming Tutorial free?

Arduino Programming Tutorial is free to download, with no in-app purchases.

### Do Impedance Calculators or Arduino Programming Tutorial have ads?

Both Impedance Calculators and Arduino Programming Tutorial show ads.

### Which is updated more often, Impedance Calculators or Arduino Programming Tutorial?

Impedance Calculators ships an update every 21 months, and Arduino Programming Tutorial every 6 weeks. Most recently, Impedance Calculators was updated on August 30, 2026 and Arduino Programming Tutorial on September 23, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*