# ErgoBlue vs HowLoud

The clearest difference is update cadence: HowLoud at every 3 days against ErgoBlue's every 4 months. ErgoBlue's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 17.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. ErgoBlue sells 4 in-app purchases, starting at $7.99 per month and HowLoud sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for ErgoBlue against 5.0 for HowLoud. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

ErgoBlue ships an update every 4 months, HowLoud every 3 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ErgoBlue | HowLoud |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/ergoblue/id1481779003/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/howloud-decibel-meter/id6767616413/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 1.7 GB | 2 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Aeronautical Data Systems Inc.](https://appshunter.io/developer/552304929) | [Nadzeya Yashchuk](https://appshunter.io/developer/1835856077) |

## What reviewers say

### ErgoBlue

[App page](https://appshunter.io/ios/app/ergoblue/id1481779003)

This aviation app provides pilots with real-time ship location data and an automated distress messaging system for emergencies over water. It enhances situational awareness, reduces pilot workload, and aids in faster rescue operations.

**Highlights:** Real-time AIS ship position data, Automated voice distress message, Distress text data message via DSC, Reduces pilot task saturation, Increases pilot situational awareness, Assists with ditching procedures, Instrument approach to ditching

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Special Flight Safety Offer | $7.99 | per month |
| Ergo Blue Weekly Subscription | $49.99 | per 7 days |
| ErgoBlue Monthly Subscription | $87.99 | per month |
| ErgoBlue Yearly Subscription | $999.99 | per year |


### HowLoud

[App page](https://appshunter.io/ios/app/howloud-decibel-meter/id6767616413)

Measure ambient sound levels with this decibel meter. Document noise patterns with notes and timestamps, and export detailed PDF reports. Keep all your measurements private on your device.

**Highlights:** Live sound level meter, A-weighted decibel measurements, Session history with notes, Location tagging, Professional PDF export, Noise reference scale

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | one-time |


## Frequently asked questions

### Is ErgoBlue free?

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

### Is HowLoud free?

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

### Which has better reviews, ErgoBlue or HowLoud?

ErgoBlue and HowLoud are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do ErgoBlue or HowLoud have ads?

Neither ErgoBlue nor HowLoud shows ads.

### Which is updated more often, ErgoBlue or HowLoud?

ErgoBlue ships an update every 4 months, and HowLoud every 3 days. Most recently, ErgoBlue was updated on November 3, 2026 and HowLoud 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.*