# WindsAloftPro vs Sylva Deer Manager

The clearest difference is update cadence: Sylva Deer Manager at weekly against WindsAloftPro's every 6 months. 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.

WindsAloftPro ships an update every 6 months, Sylva Deer Manager weekly. The most recent releases landed on October 21, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | WindsAloftPro | Sylva Deer Manager |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (3 ratings)](https://appshunter.io/ios/app/windsaloftpro/id1610049530/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Weekly** |
| Monetization | Free | — |
| Size | 7 MB | 67 MB |
| Requires iOS | 15.2 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tremont Air, LLC](https://appshunter.io/developer/309321587) | [Sylva Deer and Veterinary Services](https://appshunter.io/developer/1872678496) |

## What reviewers say

### WindsAloftPro

[App page](https://appshunter.io/ios/app/windsaloftpro/id1610049530)

This app calculates winds aloft for U.S. locations, providing data from 5000 to 39000 feet. It can also display crosswinds along your route and allows manual adjustment of climb and descent biases for various aircraft.

**Highlights:** Winds aloft calculation, Crosswind display, Climb/descent bias modification, U.S. location support, Altitude range 5000-39000 ft

**Features:** macOS Compatibility

**In-app purchases:** none


### Sylva Deer Manager

[App page](https://appshunter.io/ios/app/sylva-deer-manager/id6758393734)

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

**In-app purchases:** none


## Frequently asked questions

### Is WindsAloftPro free?

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

### Is Sylva Deer Manager free?

Sylva Deer Manager is free to download, with no in-app purchases.

### Do WindsAloftPro or Sylva Deer Manager have ads?

Neither WindsAloftPro nor Sylva Deer Manager shows ads.

### Which is updated more often, WindsAloftPro or Sylva Deer Manager?

WindsAloftPro ships an update every 6 months, and Sylva Deer Manager weekly. Most recently, WindsAloftPro was updated on October 21, 2026 and Sylva Deer Manager on October 9, 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.*