# E6B Pilot Flight Computer vs Sound Level · Baro

The clearest difference is in-app purchases: Sound Level · Baro at none against E6B Pilot Flight Computer's 1. Sound Level · Baro also leads on update cadence (every 3 days vs every 9 days) and iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. E6B Pilot Flight Computer sells 1 one-off in-app purchase. Sound Level · Baro asks for nothing beyond the download.

E6B Pilot Flight Computer ships an update every 9 days, Sound Level · Baro every 3 days. The most recent releases landed on October 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | E6B Pilot Flight Computer | Sound Level · Baro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/sound-level-baro/id6779881299/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 3 days** |
| Monetization | — | Free |
| Size | 2 MB | 23 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [光 杨](https://appshunter.io/developer/1891134953) | [Euiseok Kim](https://appshunter.io/developer/1879633122) |

## What reviewers say

### E6B Pilot Flight Computer

[App page](https://appshunter.io/ios/app/e6b-pilot-flight-computer/id6765578661)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Nav-Log Cards | $7.99 | one-time |


### Sound Level · Baro

[App page](https://appshunter.io/ios/app/sound-level-baro/id6779881299)

This app measures ambient sound levels in decibels, displaying them in a large, easy-to-read format with color-coded zones for hearing safety. It operates entirely offline and prioritizes user privacy by processing all audio data on the device without recording or uploading anything.

**Highlights:** Live dB readout, Color-coded hearing safety zones, Session min, average, and max, Built-in calibration, Large, readable display, Offline operation, Privacy-focused design

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

**In-app purchases:** none


## Frequently asked questions

### Is E6B Pilot Flight Computer free?

E6B Pilot Flight Computer is free to download, with in-app purchases available.

### Is Sound Level · Baro free?

Sound Level · Baro is free to download, with no in-app purchases.

### Do E6B Pilot Flight Computer or Sound Level · Baro have ads?

Neither E6B Pilot Flight Computer nor Sound Level · Baro shows ads.

### Which is updated more often, E6B Pilot Flight Computer or Sound Level · Baro?

E6B Pilot Flight Computer ships an update every 9 days, and Sound Level · Baro every 3 days. Most recently, E6B Pilot Flight Computer was updated on October 3, 2026 and Sound Level · Baro on October 31, 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.*