# Barometer & Altimeter vs Attendance Tracking MCAA

The clearest difference is rating: Attendance Tracking MCAA at 5.0 against Barometer & Altimeter's 2.6. Attendance Tracking MCAA also leads on iOS requirement (11.0 vs 16.0). Barometer & Altimeter's advantage is update cadence (every 3 weeks vs every 2 months) and ratings volume (28 vs 4). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Attendance Tracking MCAA holds the better App Store score, 5.0 against 2.6. That said, the two scores are not equally well evidenced: Barometer & Altimeter has 28 ratings behind it against 4, so its average is the more settled of the two.

Barometer & Altimeter ships an update every 3 weeks, Attendance Tracking MCAA every 2 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Barometer & Altimeter | Attendance Tracking MCAA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (28 ratings)](https://appshunter.io/ios/app/barometer-and-altimeter-howhigh/id921339656/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/attendance-tracking-mcaa/id1580423711/reviews)** |
| Number of ratings | **28** | 4 |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 9 MB | 52 MB |
| Requires iOS | 16.0 | **11.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thirty Seven Inc.](https://appshunter.io/developer/554594255) | [Jason Blake](https://appshunter.io/developer/1580423713) |

## What reviewers say

### Barometer & Altimeter

[App page](https://appshunter.io/ios/app/barometer-and-altimeter-howhigh/id921339656)

This app provides precise barometer and altimeter readings with live data, session recording, and historical analysis. It features automatic device calibration and supports various Apple devices and accessibility features.

**Highlights:** Dual barometer and altimeter dashboards, Real-time pressure and elevation readings, Session recording with rich datasets, Interactive Swift Charts for analysis, Automatic device calibration, Optional WeatherKit sea-level calibration

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Attendance Tracking MCAA

[App page](https://appshunter.io/ios/app/attendance-tracking-mcaa/id1580423711)

Easily track attendance for events and sessions by scanning barcodes. This free utility allows for multiple events, role delegation, and usage restrictions, making it simple to monitor who attends.

**Highlights:** Barcode scanning for attendance, Multiple session and event tracking, Role delegation, Usage restrictions, No account required, Free to use

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Barometer & Altimeter free?

Barometer & Altimeter is free to download, with no in-app purchases.

### Is Attendance Tracking MCAA free?

Attendance Tracking MCAA is free to download, with no in-app purchases.

### Which has better reviews, Barometer & Altimeter or Attendance Tracking MCAA?

Attendance Tracking MCAA is rated higher. Barometer & Altimeter averages 2.6 out of 5 from 28 ratings, while Attendance Tracking MCAA averages 5.0 from 4 ratings.

### Do Barometer & Altimeter or Attendance Tracking MCAA have ads?

Neither Barometer & Altimeter nor Attendance Tracking MCAA shows ads.

### Which is updated more often, Barometer & Altimeter or Attendance Tracking MCAA?

Barometer & Altimeter ships an update every 3 weeks, and Attendance Tracking MCAA every 2 months. Most recently, Barometer & Altimeter was updated on November 1, 2026 and Attendance Tracking MCAA on November 3, 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.*