# Onboard Performance Tool vs Atlas Winds

The clearest difference is review sentiment: Atlas Winds at 100% against Onboard Performance Tool's 14%. Atlas Winds also leads on rating (4.7 vs 3.5) and update cadence (weekly vs every 6 months). Onboard Performance Tool's advantage is in-app purchases (none vs 2). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Atlas Winds sells 2 in-app purchases, starting at $1.99 per month. Onboard Performance Tool asks for nothing beyond the download.

Atlas Winds holds the better App Store score, 4.7 against 3.5. Both are backed by a comparable volume of ratings — 17 and 21 respectively. Written reviews point the same way: 14% of Onboard Performance Tool's written reviews are positive against 100% of Atlas Winds's.

Onboard Performance Tool ships an update every 6 months, Atlas Winds weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Onboard Performance Tool | Atlas Winds |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (17 ratings)](https://appshunter.io/ios/app/onboard-performance-tool/id584211407/reviews) | **[4.7 (21 ratings)](https://appshunter.io/ios/app/atlas-winds/id1540515755/reviews)** |
| Number of ratings | 17 | **21** |
| Positive reviews | 13.5% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 42 MB | 14 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [The Boeing Company](https://appshunter.io/developer/493615170) | [Scott Brenner](https://appshunter.io/developer/1458439440) |

## What reviewers say

### Onboard Performance Tool

[App page](https://appshunter.io/ios/app/onboard-performance-tool/id584211407)

This application enables flight crews and ground personnel to perform real-time performance calculations for flights. It provides fast and precise data for takeoff, landing, and weight and balance, accounting for various environmental and operational factors.

**Highlights:** Real-time performance calculations, Takeoff analysis, Landing analysis, Weight and balance information, Accounts for weather and runway conditions, Corrects for pressure variation and MEL items

**In-app purchases:** none


### Atlas Winds

[App page](https://appshunter.io/ios/app/atlas-winds/id1540515755)

Calculate approach wind additives for specific Boeing aircraft models. Input runway winds in knots or meters per second to get your wind additive in knots.

**Highlights:** Calculate approach wind additives, Supports 737, 747, 767, 777 fleets, Input winds in knots or m/s, Output wind additive in knots

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Annual | $9.99 | per year |


## Frequently asked questions

### Is Onboard Performance Tool free?

Onboard Performance Tool is free to download, with no in-app purchases.

### Is Atlas Winds free?

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

### Which has better reviews, Onboard Performance Tool or Atlas Winds?

Atlas Winds is rated higher. Onboard Performance Tool averages 3.5 out of 5 from 17 ratings, while Atlas Winds averages 4.7 from 21 ratings.

### Do Onboard Performance Tool or Atlas Winds have ads?

Neither Onboard Performance Tool nor Atlas Winds shows ads.

### Which is updated more often, Onboard Performance Tool or Atlas Winds?

Onboard Performance Tool ships an update every 6 months, and Atlas Winds weekly. Most recently, Onboard Performance Tool was updated on October 24, 2026 and Atlas Winds on October 24, 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.*