# Meter Audit vs Bluetooth Serial Connect

The clearest difference is ads: Meter Audit at none against Bluetooth Serial Connect's shown. Meter Audit also leads on iOS requirement (11.0 vs 16.2). On price, update cadence, 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.

Meter Audit ships an update every 9 months, Bluetooth Serial Connect every 10 months. The most recent releases landed on October 2, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Meter Audit | Bluetooth Serial Connect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (7 ratings)](https://appshunter.io/ios/app/bluetooth-serial-connect/id6449396821/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 9 months** | Every 10 months |
| Monetization | — | Free |
| Size | 85 MB | 24 MB |
| Requires iOS | **11.0** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [dataVoice International](https://appshunter.io/developer/657407983) | [Henry Abrahamsen](https://appshunter.io/developer/1544660671) |

## What reviewers say

### Meter Audit

[App page](https://appshunter.io/ios/app/meter-audit/id1132199524)

**Features:** macOS Compatibility

**In-app purchases:** none


### Bluetooth Serial Connect

[App page](https://appshunter.io/ios/app/bluetooth-serial-connect/id6449396821)

Control your Arduino projects with your phone. Design custom interfaces with buttons, joysticks, and displays to send and receive data via Bluetooth low-energy modules. An integrated library simplifies the connection process.

**Highlights:** Customizable control boards, Button and joystick inputs, Display integration, Bluetooth low-energy module support, Arduino library for easy integration

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

**In-app purchases:** none


## Frequently asked questions

### Is Meter Audit free?

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

### Is Bluetooth Serial Connect free?

Bluetooth Serial Connect is free to download, with no in-app purchases.

### Do Meter Audit or Bluetooth Serial Connect have ads?

Bluetooth Serial Connect shows ads; Meter Audit does not.

### Which is updated more often, Meter Audit or Bluetooth Serial Connect?

Meter Audit ships an update every 9 months, and Bluetooth Serial Connect every 10 months. Most recently, Meter Audit was updated on October 2, 2026 and Bluetooth Serial Connect on September 29, 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.*