# NAO Logger vs dB Guard

The clearest difference is in-app purchases: NAO Logger at none against dB Guard's 2. NAO Logger also leads on iOS requirement (12.0 vs 15.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. dB Guard sells 2 in-app purchases, starting at $3.99 per 7 days. NAO Logger asks for nothing beyond the download.

NAO Logger ships an update every 4 months, dB Guard every 3 months. The most recent releases landed on October 1, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | NAO Logger | dB Guard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/nao-logger/id799528705/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 26 MB | 48 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Pole Star SA](https://appshunter.io/developer/799528708) | [Muhammad haris Shahbaz](https://appshunter.io/developer/1806317467) |

## What reviewers say

### NAO Logger

[App page](https://appshunter.io/ios/app/nao-logger/id799528705)

This app enables indoor location setup using Bluetooth beacons and advanced sensors. It allows users to track their location with bearing and accuracy on a map. Requires a free Pole Star partner account to use.

**Highlights:** Indoor location setup, Bluetooth Low Energy beacons, Advanced sensors fusion, Real-time location tracking, Bearing and accuracy display, Map visualization

**Features:** macOS Compatibility

**In-app purchases:** none


### dB Guard

[App page](https://appshunter.io/ios/app/db-guard/id6760651502)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| dB Guard Pro Weekly | $3.99 | per 7 days |
| dB Guard Pro Annual | $29.99 | per year |


## Frequently asked questions

### Is NAO Logger free?

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

### Is dB Guard free?

dB Guard is free to download, with in-app purchases available.

### Do NAO Logger or dB Guard have ads?

Neither NAO Logger nor dB Guard shows ads.

### Which is updated more often, NAO Logger or dB Guard?

NAO Logger ships an update every 4 months, and dB Guard every 3 months. Most recently, NAO Logger was updated on October 1, 2026 and dB Guard on September 28, 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.*