# FDS Altis vs WindsAloftPro

The clearest difference is rating: FDS Altis at 3.9 against WindsAloftPro's 3.0. FDS Altis also leads on update cadence (every 3 weeks vs every 6 months) and ratings volume (10 vs 3). WindsAloftPro's advantage is iOS requirement (15.2 vs 26.2). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

FDS Altis holds the better App Store score, 3.9 against 3.0. Both are backed by a comparable volume of ratings — 10 and 3 respectively. Written reviews point the same way: 40% of FDS Altis's written reviews are positive against 33% of WindsAloftPro's.

FDS Altis ships an update every 3 weeks, WindsAloftPro every 6 months. The most recent releases landed on October 19, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | FDS Altis | WindsAloftPro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (10 ratings)](https://appshunter.io/ios/app/fds-altis/id1254991988/reviews)** | [3.0 (3 ratings)](https://appshunter.io/ios/app/windsaloftpro/id1610049530/reviews) |
| Number of ratings | **10** | 3 |
| Positive reviews | **40.0% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 months |
| Monetization | Free | Free |
| Size | 16 MB | 7 MB |
| Requires iOS | 26.2 | **15.2** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Casey Mongoven](https://appshunter.io/developer/1254991987) | [Tremont Air, LLC](https://appshunter.io/developer/309321587) |

## What reviewers say

### FDS Altis

[App page](https://appshunter.io/ios/app/fds-altis/id1254991988)

Access the instructional manual for your product and connect to the system. By using this application, you agree to the Terms of Service and Privacy Policy.

**Highlights:** Product instructional manual access, System connection, Terms of Service agreement, Privacy Policy agreement

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is FDS Altis free?

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

### Is WindsAloftPro free?

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

### Which has better reviews, FDS Altis or WindsAloftPro?

FDS Altis is rated higher. FDS Altis averages 3.9 out of 5 from 10 ratings, while WindsAloftPro averages 3.0 from 3 ratings.

### Do FDS Altis or WindsAloftPro have ads?

Neither FDS Altis nor WindsAloftPro shows ads.

### Which is updated more often, FDS Altis or WindsAloftPro?

FDS Altis ships an update every 3 weeks, and WindsAloftPro every 6 months. Most recently, FDS Altis was updated on October 19, 2026 and WindsAloftPro on October 21, 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.*