# True vs Celestial Navigation 360

The clearest difference is update cadence: Celestial Navigation 360 at monthly against True's every 41 months. True's advantage is iOS requirement (16.0 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. True sells 1 one-off in-app purchase and Celestial Navigation 360 sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

True ships an update every 41 months, Celestial Navigation 360 monthly. The most recent releases landed on August 25, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | True | Celestial Navigation 360 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 41 months | **Monthly** |
| Monetization | Paid | — |
| Size | 1 MB | 1 MB |
| Requires iOS | **16.0** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nejc Landeker](https://appshunter.io/developer/712909616) | [Nicholas Braun](https://appshunter.io/developer/1018432793) |

## 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 |


### Celestial Navigation 360

[App page](https://appshunter.io/ios/app/celestial-navigation-360/id6747285959)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| month | $4.99 | per month |
| year | $17.99 | per year |


## Frequently asked questions

### Is True free?

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

### Is Celestial Navigation 360 free?

Celestial Navigation 360 is free to download, with in-app purchases available.

### Do True or Celestial Navigation 360 have ads?

Neither True nor Celestial Navigation 360 shows ads.

### Which is updated more often, True or Celestial Navigation 360?

True ships an update every 41 months, and Celestial Navigation 360 monthly. Most recently, True was updated on August 25, 2026 and Celestial Navigation 360 on September 7, 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.*