# Voltage Regulator vs Brainiak

The clearest difference is in-app purchases: Brainiak at none against Voltage Regulator's 1. On price, ads, device support and iOS requirement there is nothing between them.

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

## The numbers

| Metric | Voltage Regulator | Brainiak |
| --- | --- | --- |
| 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 | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 months | — |
| Monetization | Freemium | — |
| Size | 3 MB | 28 MB |
| Requires iOS | **12.0** | 12.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Siu Yuen Ho](https://appshunter.io/developer/814088527) | [Sonwalkar Consulting Group](https://appshunter.io/developer/355212778) |

## 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 |


### Brainiak

[App page](https://appshunter.io/ios/app/brainiak/id6467396620)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Voltage Regulator free?

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

### Is Brainiak free?

Brainiak is free to download, with no in-app purchases.

### Do Voltage Regulator or Brainiak have ads?

Neither Voltage Regulator nor Brainiak shows ads.

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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.*