# Resistor Color Code Calc + vs Noctera

The clearest difference is ads: Noctera at none against Resistor Color Code Calc +'s shown. Noctera also leads on update cadence (daily vs every 2 days). Resistor Color Code Calc +'s advantage is iOS requirement (16.4 vs 26.0). On price, in-app purchases and device support there is nothing between them.

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

Resistor Color Code Calc + ships an update every 2 days, Noctera daily. The most recent releases landed on October 23, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Resistor Color Code Calc + | Noctera |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 days | **Daily** |
| Size | 50 MB | 3 MB |
| Requires iOS | **16.4** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 17+ |
| Developer | [heekyung moon](https://appshunter.io/developer/6779193748) | [Shubham Dolas](https://appshunter.io/developer/6788236034) |

## What reviewers say

### 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


### Noctera

[App page](https://appshunter.io/ios/app/noctera-ai-adblock-browser/id6806437474)

**In-app purchases:** none


## Frequently asked questions

### Is Resistor Color Code Calc + free?

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

### Is Noctera free?

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

### Do Resistor Color Code Calc + or Noctera have ads?

Resistor Color Code Calc + shows ads; Noctera does not.

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

Resistor Color Code Calc + ships an update every 2 days, and Noctera daily. Most recently, Resistor Color Code Calc + was updated on October 23, 2026 and Noctera on October 21, 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.*