# Ble2Serial vs ElectroCalc Pro

The clearest difference is in-app purchases: Ble2Serial at none against ElectroCalc Pro's 1. Ble2Serial also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. ElectroCalc Pro sells 1 one-off in-app purchase. Ble2Serial asks for nothing beyond the download.

Ble2Serial ships an update every 4 weeks, ElectroCalc Pro every 2 months. The most recent releases landed on September 15, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Ble2Serial | ElectroCalc Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 weeks** | Every 2 months |
| Size | 18 MB | 28 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FUH CHERNG SHEU](https://appshunter.io/developer/1063937264) | [DONGSOO LEE](https://appshunter.io/developer/1868670088) |

## What reviewers say

### Ble2Serial

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

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

**In-app purchases:** none


### ElectroCalc Pro

[App page](https://appshunter.io/ios/app/electrocalc-pro/id6758211193)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Ble2Serial free?

Ble2Serial is free to download, with no in-app purchases.

### Is ElectroCalc Pro free?

ElectroCalc Pro is free to download, with in-app purchases available.

### Do Ble2Serial or ElectroCalc Pro have ads?

ElectroCalc Pro shows ads; Ble2Serial does not.

### Which is updated more often, Ble2Serial or ElectroCalc Pro?

Ble2Serial ships an update every 4 weeks, and ElectroCalc Pro every 2 months. Most recently, Ble2Serial was updated on September 15, 2026 and ElectroCalc Pro on September 23, 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.*