# xWind vs SubStandard

The clearest difference is review sentiment: xWind at 75% against SubStandard's 0%. xWind also leads on update cadence (fortnightly vs every 7 months) and ratings volume (550 vs 2). SubStandard's advantage is price (Free vs $0.99) and rating (5.0 vs 4.6). On ads, in-app purchases, monetization model and device support there is nothing between them.

SubStandard is free to download; xWind costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SubStandard holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: xWind has 550 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 75% of xWind's written reviews are positive against 0% of SubStandard's, so the app with the better star average is not the one people write more warmly about.

xWind ships an update fortnightly, SubStandard every 7 months. The most recent releases landed on September 30, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | xWind | SubStandard |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.6 (550 ratings)](https://appshunter.io/ios/app/xwind/id1477120117/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/substandard/id1513656520/reviews)** |
| Number of ratings | **550** | 2 |
| Positive reviews | **75.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 7 months |
| Monetization | Free | Free |
| Size | 13 MB | 33 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jan Bloemendaal](https://appshunter.io/developer/1477120116) | [iService Ottner Röck](https://appshunter.io/developer/1413717324) |

## What reviewers say

### xWind

[App page](https://appshunter.io/ios/app/xwind/id1477120117)

This tool helps pilots quickly assess wind conditions relative to aircraft limitations. It displays essential wind data, including headwind, crosswind, and tailwind components, along with runway course and wind limits on a single screen for easy reference during flight.

**Highlights:** Headwind, crosswind, and tailwind calculation, Displays current wind direction and speed, Shows runway course, Indicates applied wind limits, Identifies 'forbidden' wind angles, Provides maximum wind speed table, Adjustable wind and runway settings

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use and read
- 👍 Works well for its intended purpose
- 👍 Good interface
- 👍 Remembers settings
- 👍 Helpful for visualizing wind

**What reviewers complain about**

- 🤔 Numbers are unlabeled and ambiguous
- 🤔 Not intuitive
- 🤔 Difficult to understand
- 🤔 Instructions could be clearer
- 🤔 Old version was better

**Reported bugs**

- Speed toggle doesn't work, always shows MPS

**Requested features**

- Incorporate gust factors
- 3 customizable buttons for quick limit settings
- Different colored concentric rings inside the red limit ring


### SubStandard

[App page](https://appshunter.io/ios/app/substandard/id1513656520)

This aviation utility app simplifies applying cold temperature corrections for altitudes. It allows users to save frequently used altitude sets for rapid retrieval, enhancing efficiency in flight planning.

**Highlights:** Cold temperature corrections, Altitude set storage, Quick access to saved altitudes, Easy to use interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is xWind free?

xWind costs $0.99, with no in-app purchases.

### Is SubStandard free?

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

### Which has better reviews, xWind or SubStandard?

SubStandard is rated higher. xWind averages 4.6 out of 5 from 550 ratings, while SubStandard averages 5.0 from 2 ratings.

### Do xWind or SubStandard have ads?

Neither xWind nor SubStandard shows ads.

### Which is updated more often, xWind or SubStandard?

xWind ships an update fortnightly, and SubStandard every 7 months. Most recently, xWind was updated on September 30, 2026 and SubStandard on September 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.*