# PhomulaCalc vs Arduino BT Controller

The clearest difference is in-app purchases: PhomulaCalc at none against Arduino BT Controller's 1. PhomulaCalc also leads on ads (none vs shown) and iOS requirement (15.5 vs 18.2). On price and device support there is nothing between them.

Both are free to download. Arduino BT Controller sells 1 one-off in-app purchase. PhomulaCalc asks for nothing beyond the download.

## The numbers

| Metric | PhomulaCalc | Arduino BT Controller |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (1 ratings)](https://appshunter.io/ios/app/arduino-bt-controller/id6744121460/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 8 days |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 7 MB |
| Requires iOS | **15.5** | 18.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Huu Tai Nguyen](https://appshunter.io/developer/1449597123) | [Boyle Sim](https://appshunter.io/developer/1806031422) |

## What reviewers say

### PhomulaCalc

[App page](https://appshunter.io/ios/app/phomulacalc/id6738628076)

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

**In-app purchases:** none


### Arduino BT Controller

[App page](https://appshunter.io/ios/app/arduino-bt-controller/id6744121460)

Control Arduino-based RC cars using Bluetooth 4.0. Customize button actions for real-time driving control. No login is needed for immediate use.

**Highlights:** Drive forward, backward, left, and right, Customizable button actions, Real-time Bluetooth communication, No login required

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is PhomulaCalc free?

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

### Is Arduino BT Controller free?

Arduino BT Controller is free to download, with in-app purchases available.

### Do PhomulaCalc or Arduino BT Controller have ads?

Arduino BT Controller shows ads; PhomulaCalc does not.

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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.*