# True vs VoyLog

The clearest difference is update cadence: VoyLog at every 4 days against True's every 41 months. 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 VoyLog sells 1 in-app purchase, 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, VoyLog every 4 days. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | True | VoyLog |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 41 months | **Every 4 days** |
| Monetization | Paid | — |
| Size | 1 MB | 56 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nejc Landeker](https://appshunter.io/developer/712909616) | [METRICS TR DANISMANLIK VE DIS TICARET ANONIM SIRKETI](https://appshunter.io/developer/6783287410) |

## 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 |


### VoyLog

[App page](https://appshunter.io/ios/app/voylog/id6784607636)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VoyLog Pro | $4.99 | per month |


## Frequently asked questions

### Is True free?

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

### Is VoyLog free?

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

### Do True or VoyLog have ads?

Neither True nor VoyLog shows ads.

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

True ships an update every 41 months, and VoyLog every 4 days. Most recently, True was updated on November 6, 2026 and VoyLog on November 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.*