# OhmsLab vs Resistor Code Calculator Pro

The clearest difference is in-app purchases: Resistor Code Calculator Pro at none against OhmsLab's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. OhmsLab sells 1 one-off in-app purchase. Resistor Code Calculator Pro asks for nothing beyond the download.

## The numbers

| Metric | OhmsLab | Resistor Code Calculator Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Size | 3 MB | 12 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [InnovaLabWorks](https://appshunter.io/developer/1888514726) | [Ha Do Thi Thu](https://appshunter.io/developer/1707030622) |

## What reviewers say

### OhmsLab

[App page](https://appshunter.io/ios/app/ohmslab-ohms-law-and-codes/id6790220501)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OhmsLab Lifetime | $4.99 | one-time |


### Resistor Code Calculator Pro

[App page](https://appshunter.io/ios/app/resistor-code-calculator-pro/id6794582814)

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

**In-app purchases:** none


## Frequently asked questions

### Is OhmsLab free?

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

### Is Resistor Code Calculator Pro free?

Resistor Code Calculator Pro is free to download, with no in-app purchases.

### Do OhmsLab or Resistor Code Calculator Pro have ads?

Neither OhmsLab nor Resistor Code Calculator Pro 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.*