# Interpolator vs xWind

The clearest difference is price: Interpolator at Free against xWind's $0.99. Interpolator also leads on rating (4.9 vs 4.6). xWind's advantage is update cadence (fortnightly vs every 4 months) and ratings volume (554 vs 75). On ads, in-app purchases, monetization model and device support there is nothing between them.

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

Interpolator holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: xWind has 554 ratings behind it against 75, so its average is the more settled of the two. Written reviews complicate that: 67% of Interpolator's written reviews are positive against 75% of xWind's, so the app with the better star average is not the one people write more warmly about.

Interpolator ships an update every 4 months, xWind fortnightly. The most recent releases landed on October 23, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Interpolator | xWind |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.9 (75 ratings)](https://appshunter.io/ios/app/interpolator/id635235982/reviews)** | [4.6 (554 ratings)](https://appshunter.io/ios/app/xwind/id1477120117/reviews) |
| Number of ratings | 75 | **554** |
| Positive reviews | 66.7% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 18 MB | 13 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | +4 | 4+ |
| Developer | [ron mooring](https://appshunter.io/developer/612283157) | [Jan Bloemendaal](https://appshunter.io/developer/1477120116) |

## What reviewers say

### Interpolator

[App page](https://appshunter.io/ios/app/interpolator/id635235982)

Easily find values within tables using interpolation for two or three rows. This utility app simplifies calculations without needing a separate calculator, making it ideal for various table-based environments.

**Highlights:** Two-row interpolation, Three-row interpolation, Table value lookup, No calculator needed, Cargo surveyor tool, General table use

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Interpolator free?

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

### Is xWind free?

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

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

Interpolator is rated higher. Interpolator averages 4.9 out of 5 from 75 ratings, while xWind averages 4.6 from 554 ratings.

### Do Interpolator or xWind have ads?

Neither Interpolator nor xWind shows ads.

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

Interpolator ships an update every 4 months, and xWind fortnightly. Most recently, Interpolator was updated on October 23, 2026 and xWind on October 29, 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.*