# HR TimeClock vs Resistor

The clearest difference is ads: HR TimeClock at none against Resistor's shown. HR TimeClock also leads on update cadence (every 2 months vs every 16 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

HR TimeClock ships an update every 2 months, Resistor every 16 months. The most recent releases landed on September 18, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | HR TimeClock | Resistor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (3 ratings)](https://appshunter.io/ios/app/resistor-electronics-tools/id6504726625/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 16 months |
| Monetization | — | Ad-supported |
| Size | 25 MB | 22 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BiznusSoft](https://appshunter.io/developer/640122203) | [Anas Abubakar](https://appshunter.io/developer/1581534101) |

## What reviewers say

### HR TimeClock

[App page](https://appshunter.io/ios/app/hr-timeclock/id6446649403)

**Features:** macOS Compatibility

**In-app purchases:** none


### Resistor

[App page](https://appshunter.io/ios/app/resistor-electronics-tools/id6504726625)

This application simplifies electronic circuit calculations with tools for series/parallel resistance, LED current limiting, and three-phase circuit conversions. It also features a resistor color code decoder for quick component identification.

**Highlights:** Series/parallel resistor calculator, LED series resistor calculator, Star-delta and delta-star converters, Resistor color code decoder, Intuitive interface

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

**In-app purchases:** none


## Frequently asked questions

### Is HR TimeClock free?

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

### Is Resistor free?

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

### Do HR TimeClock or Resistor have ads?

Resistor shows ads; HR TimeClock does not.

### Which is updated more often, HR TimeClock or Resistor?

HR TimeClock ships an update every 2 months, and Resistor every 16 months. Most recently, HR TimeClock was updated on September 18, 2026 and Resistor on September 9, 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.*