# Sail Tonga Cruising Guide vs EMail Tracker

The clearest difference is price: EMail Tracker at Free against Sail Tonga Cruising Guide's $29.99. EMail Tracker also leads on device support (3 vs 1) and iOS requirement (11.0 vs 15.6). On update cadence, ads and in-app purchases there is nothing between them.

EMail Tracker is free to download; Sail Tonga Cruising Guide costs $29.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sail Tonga Cruising Guide ships an update every 3 months, EMail Tracker every 2 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Sail Tonga Cruising Guide | EMail Tracker |
| --- | --- | --- |
| Price | $29.99 | **Free** |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/sail-tonga-cruising-guide/id1044141067/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 207 MB | 27 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sail South Pacific Ltd.](https://appshunter.io/developer/911662852) | [VICTORIAN HANG GLIDING & PARAGLIDING ASSOCIATION INC](https://appshunter.io/developer/1594349509) |

## What reviewers say

### Sail Tonga Cruising Guide

[App page](https://appshunter.io/ios/app/sail-tonga-cruising-guide/id1044141067)

Navigate the Tonga Archipelago with detailed charts, routes, and anchorage information. This guide offers local knowledge, cultural insights, and safety tips to enhance your cruising experience.

**Highlights:** Interactive drill-down charts, Detailed routes and waypoints, Anchorage descriptions, High-quality photographs, Safety tips and tricks, Cultural information

**Features:** macOS Compatibility

**In-app purchases:** none


### EMail Tracker

[App page](https://appshunter.io/ios/app/email-tracker/id1668551351)

**In-app purchases:** none


## Frequently asked questions

### Is Sail Tonga Cruising Guide free?

Sail Tonga Cruising Guide costs $29.99, with no in-app purchases.

### Is EMail Tracker free?

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

### Do Sail Tonga Cruising Guide or EMail Tracker have ads?

Neither Sail Tonga Cruising Guide nor EMail Tracker shows ads.

### Which is updated more often, Sail Tonga Cruising Guide or EMail Tracker?

Sail Tonga Cruising Guide ships an update every 3 months, and EMail Tracker every 2 months. Most recently, Sail Tonga Cruising Guide was updated on October 24, 2026 and EMail Tracker on October 27, 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.*