# Resistor vs 메모담

The clearest difference is ads: 메모담 at none against Resistor's shown. 메모담 also leads on update cadence (weekly 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.

Resistor ships an update every 16 months, 메모담 weekly. The most recent releases landed on October 30, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Resistor | 메모담 |
| --- | --- | --- |
| 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 | Yes | **No** |
| Update frequency | Every 16 months | **Weekly** |
| Monetization | Ad-supported | — |
| Size | 22 MB | 67 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Anas Abubakar](https://appshunter.io/developer/1581534101) | [taewoo kim](https://appshunter.io/developer/1831258848) |

## What reviewers say

### 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


### 메모담

[App page](https://appshunter.io/ios/app/id6749578350)

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

**In-app purchases:** none


## Frequently asked questions

### Is Resistor free?

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

### Is 메모담 free?

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

### Do Resistor or 메모담 have ads?

Resistor shows ads; 메모담 does not.

### Which is updated more often, Resistor or 메모담?

Resistor ships an update every 16 months, and 메모담 weekly. Most recently, Resistor was updated on October 30, 2026 and 메모담 on October 7, 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.*