# True vs Binnacle

The clearest difference is review sentiment: Binnacle at 100% against True's 0%. Binnacle also leads on in-app purchases (none vs 1) and update cadence (every 2 weeks vs every 41 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. True sells 1 one-off in-app purchase. Binnacle asks for nothing beyond the download.

True ships an update every 41 months, Binnacle every 2 weeks. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | True | Binnacle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/binnacle-nautical-calculator/id6523426668/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 41 months | **Every 2 weeks** |
| Monetization | Paid | **Free** |
| Size | 1 MB | 32 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Nejc Landeker](https://appshunter.io/developer/712909616) | [Danylo Budylkin](https://appshunter.io/developer/6778012130) |

## What reviewers say

### True

[App page](https://appshunter.io/ios/app/true-wind-calculator/id712909613)

Calculate true wind direction and speed for sailing. Input vessel speed, apparent wind, and angle to determine accurate wind data.

**Highlights:** True-wind calculation, Vessel speed input, Apparent wind speed input, Apparent wind angle input, Vessel heading input

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Unlock | $4.99 | one-time |


### Binnacle

[App page](https://appshunter.io/ios/app/binnacle-nautical-calculator/id6523426668)

This navigation app provides tools for maritime professionals and sailing enthusiasts. It offers features like true wind calculation, celestial navigation, ETA estimation, logbook management, and port search. Stay informed with real-time NavArea warnings for safer voyages.

**Highlights:** True Wind Calculation, Celestial Navigation Tools, ETA Estimation, LogBook Management, UNLOCODE Search, NavArea Warnings

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is True free?

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

### Is Binnacle free?

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

### Do True or Binnacle have ads?

Neither True nor Binnacle shows ads.

### Which is updated more often, True or Binnacle?

True ships an update every 41 months, and Binnacle every 2 weeks. Most recently, True was updated on November 6, 2026 and Binnacle on October 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.*