# Bluetooth for Arduino vs CryptoSignals

The clearest difference is price: Bluetooth for Arduino at Free against CryptoSignals's $1.99. Bluetooth for Arduino also leads on update cadence (every 2 months vs every 7 months). CryptoSignals's advantage is in-app purchases (none vs 5). On ads, device support and iOS requirement there is nothing between them.

Bluetooth for Arduino is free to download; CryptoSignals costs $1.99 up front. Bluetooth for Arduino sells 5 one-off in-app purchases. CryptoSignals asks for nothing beyond the download.

Bluetooth for Arduino ships an update every 2 months, CryptoSignals every 7 months. The most recent releases landed on October 1, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Bluetooth for Arduino | CryptoSignals |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[3.5 (44 ratings)](https://appshunter.io/ios/app/bluetooth-for-arduino/id1505096526/reviews)** | — |
| Number of ratings | **44** | — |
| Positive reviews | 45.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 2 MB |
| Requires iOS | 18.5 | **18.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 9+ |
| Developer | [Giuseppe Migliore](https://appshunter.io/developer/1505096105) | [Michal Strba](https://appshunter.io/developer/1752133759) |

## What reviewers say

### Bluetooth for Arduino

[App page](https://appshunter.io/ios/app/bluetooth-for-arduino/id1505096526)

Transform your iPhone or iPad into a wireless remote control for your Arduino projects. Easily connect to your Bluetooth module and send custom commands via keyboard or pre-designed buttons.

**Highlights:** Bluetooth remote control, Arduino project control, Custom command sending, Keyboard input, Button interface, Connect to Bluetooth modules

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $0.99 | one-time |
| Custom | $3.99 | one-time |
| Gamepad | $3.99 | one-time |
| Terminal | $3.99 | one-time |
| Unlock everything | $11.99 | one-time |


### CryptoSignals

[App page](https://appshunter.io/ios/app/cryptosignals-trend-analyzer/id6759506521)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bluetooth for Arduino free?

Bluetooth for Arduino is free to download, with in-app purchases available.

### Is CryptoSignals free?

CryptoSignals costs $1.99, with no in-app purchases.

### Do Bluetooth for Arduino or CryptoSignals have ads?

Neither Bluetooth for Arduino nor CryptoSignals shows ads.

### Which is updated more often, Bluetooth for Arduino or CryptoSignals?

Bluetooth for Arduino ships an update every 2 months, and CryptoSignals every 7 months. Most recently, Bluetooth for Arduino was updated on October 1, 2026 and CryptoSignals on September 30, 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.*