# Anexia Authenticator vs Resistor Color Code Calc +

The clearest difference is ads: Anexia Authenticator at none against Resistor Color Code Calc +'s shown. Resistor Color Code Calc +'s advantage is update cadence (every 2 days vs every 2 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.

Anexia Authenticator ships an update every 2 months, Resistor Color Code Calc + every 2 days. The most recent releases landed on October 13, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Anexia Authenticator | Resistor Color Code Calc + |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 days** |
| Size | 36 MB | 50 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [ANEXIA Internetdienstleistungs GmbH](https://appshunter.io/developer/412162931) | [heekyung moon](https://appshunter.io/developer/6779193748) |

## What reviewers say

### Anexia Authenticator

[App page](https://appshunter.io/ios/app/anexia-authenticator/id1358602833)

**Features:** macOS Compatibility

**In-app purchases:** none


### Resistor Color Code Calc +

[App page](https://appshunter.io/ios/app/resistor-color-code-calc-plus/id6790018644)

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

**In-app purchases:** none


## Frequently asked questions

### Is Anexia Authenticator free?

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

### Is Resistor Color Code Calc + free?

Resistor Color Code Calc + is free to download, with no in-app purchases.

### Do Anexia Authenticator or Resistor Color Code Calc + have ads?

Resistor Color Code Calc + shows ads; Anexia Authenticator does not.

### Which is updated more often, Anexia Authenticator or Resistor Color Code Calc +?

Anexia Authenticator ships an update every 2 months, and Resistor Color Code Calc + every 2 days. Most recently, Anexia Authenticator was updated on October 13, 2026 and Resistor Color Code Calc + on October 17, 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.*