# US Standard Atmosphere — 1976 Atmospheric Standard

> 1976 Atmospheric Standard (iPhone/iPad app by Robert Walker.)

- Source: https://appshunter.io/ios/app/us-standard-atmosphere/id1610618760 (this page in markdown: same URL + `.md`)
- Developer: [Robert Walker](https://appshunter.io/developer/299475042)
- Category: Reference, Education
- Price: $0.99
- Age rating: 4+
- Requires: iOS 15.2 · 1 MB
- Languages: English
- Released: 2022-02-17
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/us-standard-atmosphere/id1610618760/reviews.md

## What is US Standard Atmosphere?

U.S. Standard Atmosphere is intended for those in the aeronautical engineering field.  It doesn't replace well tested and comprehensive tables and computer programs, but it does provide a quick check standard atmospheric values between -1,000 and 295,000 feet.  The app also calculates the speed of sound.  The app accepts SI or English units.


## Version history (last 3 releases)

### 1.2 — 2022-02-22

This version increases the number of significant digits for pressure and density at higher altitudes.

### 1.1 — 2022-02-18

This version corrects a typo error.

### 1.0 — 2022-02-18

No release notes.

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## More apps by Robert Walker

- [JMF Trails](https://appshunter.io/ios/app/jmf-trails/id1226190313)
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- [US Airports Db](https://appshunter.io/ios/app/us-airports-db/id1614164272)

All apps by Robert Walker: https://appshunter.io/developer/299475042

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-19.*