# Voltage Regulator vs Electronic Circuits Calculator

The clearest difference is review sentiment: Voltage Regulator at 100% against Electronic Circuits Calculator's 0%. Voltage Regulator also leads on ads (none vs shown) and iOS requirement (12.0 vs 16.0). Electronic Circuits Calculator's advantage is in-app purchases (none vs 1) and update cadence (every 2 months vs every 9 months). On price and device support there is nothing between them.

Both are free to download. Voltage Regulator sells 1 one-off in-app purchase. Electronic Circuits Calculator asks for nothing beyond the download.

Voltage Regulator ships an update every 9 months, Electronic Circuits Calculator every 2 months. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Voltage Regulator | Electronic Circuits Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/voltage-regulator/id1149145965/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | Freemium | **Ad-supported** |
| Size | 3 MB | 21 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Siu Yuen Ho](https://appshunter.io/developer/814088527) | [ALG Software Lab](https://appshunter.io/developer/1650561236) |

## What reviewers say

### Voltage Regulator

[App page](https://appshunter.io/ios/app/voltage-regulator/id1149145965)

Calculate resistor combinations for adjustable voltage regulators. This tool helps electronics hobbyists and professionals determine desired output voltages and resistor values. Results can be exported and shared easily.

**Highlights:** Adjustable voltage regulator support, Calculate resistor combinations, Determine resistor values, Export results to CSV, Share CSV via iCloud/AirDrop

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro features | $1.99 | one-time |


### Electronic Circuits Calculator

[App page](https://appshunter.io/ios/app/electronic-circuits-calculator/id6444422711)

This comprehensive electronics toolkit offers over 130 interactive calculators, circuit tools, and guides. It's designed for users of all levels, from beginners to professionals, to assist with learning, prototyping, and quick calculations in electronics engineering.

**Highlights:** Over 130 interactive calculators, Circuit tools and guides, Step-by-step explanations and formulas, Ideal for learning and prototyping, Light and dark mode support, Available in 14 languages

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

**In-app purchases:** none


## Frequently asked questions

### Is Voltage Regulator free?

Voltage Regulator is free to download, with in-app purchases available.

### Is Electronic Circuits Calculator free?

Electronic Circuits Calculator is free to download, with no in-app purchases.

### Do Voltage Regulator or Electronic Circuits Calculator have ads?

Electronic Circuits Calculator shows ads; Voltage Regulator does not.

### Which is updated more often, Voltage Regulator or Electronic Circuits Calculator?

Voltage Regulator ships an update every 9 months, and Electronic Circuits Calculator every 2 months. Most recently, Voltage Regulator was updated on October 24, 2026 and Electronic Circuits Calculator on October 19, 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.*