# Nautic Alert vs TMG BT

The clearest difference is update cadence: Nautic Alert at fortnightly against TMG BT's monthly. Nautic Alert also leads on iOS requirement (12.2 vs 14.0). On price, ads, 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.

Nautic Alert ships an update fortnightly, TMG BT monthly. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Nautic Alert | TMG BT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/nautic-alert/id1505851486/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Free | — |
| Size | 107 MB | 33 MB |
| Requires iOS | **12.2** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Market Spectrum, Inc](https://appshunter.io/developer/1463441497) | [The Marine Guadian LLC](https://appshunter.io/developer/1686542285) |

## What reviewers say

### Nautic Alert

[App page](https://appshunter.io/ios/app/nautic-alert/id1505851486)

Monitor and manage your boat or fleet with real-time tracking, security, and communication. Receive instant notifications for events via text, email, or voice calls. Integrates with standard security sensors and relays for comprehensive control.

**Highlights:** Real-time boat and fleet tracking, 2-way communication (cellular/satellite), Security sensor integration, Device control and management, Push notifications for events, Global reach

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

**In-app purchases:** none


### TMG BT

[App page](https://appshunter.io/ios/app/tmg-bt/id6448838544)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Nautic Alert free?

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

### Is TMG BT free?

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

### Do Nautic Alert or TMG BT have ads?

Neither Nautic Alert nor TMG BT shows ads.

### Which is updated more often, Nautic Alert or TMG BT?

Nautic Alert ships an update fortnightly, and TMG BT monthly. Most recently, Nautic Alert was updated on October 7, 2026 and TMG BT on October 5, 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.*