# Ble2Serial vs Resistor Color Code Calc +

The clearest difference is ads: Ble2Serial at none against Resistor Color Code Calc +'s shown. Ble2Serial also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.4). Resistor Color Code Calc +'s advantage is update cadence (every 2 days vs every 4 weeks). On price and in-app purchases there is nothing between them.

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

Ble2Serial ships an update every 4 weeks, Resistor Color Code Calc + every 2 days. The most recent releases landed on October 19, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Ble2Serial | Resistor Color Code Calc + |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 weeks | **Every 2 days** |
| Size | 18 MB | 50 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [FUH CHERNG SHEU](https://appshunter.io/developer/1063937264) | [heekyung moon](https://appshunter.io/developer/6779193748) |

## What reviewers say

### Ble2Serial

[App page](https://appshunter.io/ios/app/ble2serial/id1593360257)

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

**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 Ble2Serial free?

Ble2Serial 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 Ble2Serial or Resistor Color Code Calc + have ads?

Resistor Color Code Calc + shows ads; Ble2Serial does not.

### Which is updated more often, Ble2Serial or Resistor Color Code Calc +?

Ble2Serial ships an update every 4 weeks, and Resistor Color Code Calc + every 2 days. Most recently, Ble2Serial was updated on October 19, 2026 and Resistor Color Code Calc + on October 17, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*