# Length Converter Plus vs Resistor calc

The clearest difference is price: Length Converter Plus at Free against Resistor calc's $1.99. Resistor calc's advantage is ads (none vs shown) and update cadence (every 2 months vs every 12 months). On in-app purchases, device support and iOS requirement there is nothing between them.

Length Converter Plus is free to download; Resistor calc costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Length Converter Plus ships an update every 12 months, Resistor calc every 2 months. The most recent releases landed on October 8, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Length Converter Plus | Resistor calc |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/length-converter-plus/id982843030/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 12 months | **Every 2 months** |
| Monetization | Ad-supported | — |
| Size | 6 MB | 17 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hideshi Otsuru](https://appshunter.io/developer/446092368) | [Anas Abubakar](https://appshunter.io/developer/1581534101) |

## What reviewers say

### Length Converter Plus

[App page](https://appshunter.io/ios/app/length-converter-plus/id982843030)

Easily convert between various units of length, from micrometers to miles. Includes a built-in calculator for added convenience.

**Highlights:** Converts 10 different length units, Includes Micrometer, Millimeter, Centimeter, Converts Meter, Kilometer, Inch, Feet, Converts Yard, Mile, Nautical miles, Built-in calculator functionality

**Features:** Vision Pro support

**In-app purchases:** none


### Resistor calc

[App page](https://appshunter.io/ios/app/resistor-calc-electronics/id6477826973)

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

**In-app purchases:** none


## Frequently asked questions

### Is Length Converter Plus free?

Length Converter Plus is free to download, with no in-app purchases.

### Is Resistor calc free?

Resistor calc costs $1.99, with no in-app purchases.

### Do Length Converter Plus or Resistor calc have ads?

Length Converter Plus shows ads; Resistor calc does not.

### Which is updated more often, Length Converter Plus or Resistor calc?

Length Converter Plus ships an update every 12 months, and Resistor calc every 2 months. Most recently, Length Converter Plus was updated on October 8, 2026 and Resistor calc on October 2, 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.*