# Control HA App vs Sound Amplifier

Control HA App and Sound Amplifier both sit at 4.5 stars, but that hides the real split: 100% of Control HA App's written reviews are positive against 34% of Sound Amplifier's. Control HA App also leads on in-app purchases (none vs 6) and iOS requirement (9.0 vs 15.0). Sound Amplifier's advantage is update cadence (every 2 weeks vs every 10 months) and ratings volume (1.2K vs 2). On price, rating, ads and device support there is nothing between them.

Both are free to download. Sound Amplifier sells 4 in-app purchases, starting at $9.99 per month. Control HA App asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.5 for Control HA App against 4.6 for Sound Amplifier. That said, the two scores are not equally well evidenced: Sound Amplifier has 1.2K ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 100% of Control HA App's written reviews are positive against 34% of Sound Amplifier's.

Control HA App ships an update every 10 months, Sound Amplifier every 2 weeks. The most recent releases landed on October 2, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Control HA App | Sound Amplifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (2 ratings)](https://appshunter.io/ios/app/control-ha-app/id1434375935/reviews) | **[4.6 (1.2K ratings)](https://appshunter.io/ios/app/sound-amplifier/id1615079093/reviews)** |
| Number of ratings | 2 | **1.2K** |
| Positive reviews | **100.0% of reviews** | 34.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 12 MB | 23 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | +4 |
| Developer | [志琴 张](https://appshunter.io/developer/1429316716) | [Mighty Fine Apps LLC](https://appshunter.io/developer/973529494) |

## What reviewers say

### Control HA App

[App page](https://appshunter.io/ios/app/control-ha-app/id1434375935)

Adjust audio settings for hearing devices, including volume and EQ for each ear. Switch between four distinct listening modes tailored for different environments. Monitor battery levels to ensure continuous use.

**Highlights:** Volume control per ear, Four listening modes, Bass and treble adjustment, Battery level monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


### Sound Amplifier

[App page](https://appshunter.io/ios/app/sound-amplifier/id1615079093)

Transform your phone into a powerful hearing aid. This app amplifies sound up to 100x, enhances voice clarity, and reduces background noise. Protect your hearing while easily listening to conversations, lectures, or TV with connected headphones.

**Highlights:** Volume amplification up to 100x, Voice isolation for clearer conversations, Hearing protection features, Background app operation, Simple one-tap amplification, Bluetooth headphone support

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | $9.99 | per month |
| Full Access | $49.99 | per year |
| Full Access | $59.99 | per year |
| Full Access | $99.99 | per year |

**What reviewers like**

- ⭐ Excellent sound quality
- 🔊 Effective amplification
- 🎧 Works well with wireless headphones

**What reviewers complain about**

- 💰 Expensive subscription model
- 🔒 Locked behind paywall
- 🔁 Delayed audio playback
- 🚫 Doesn't work with built-in phone speakers

**Reported bugs**

- Subscription charges even after cancellation
- Inability to cancel free trial
- Compatibility issues with certain devices

**Requested features**

- Free trial option without payment info
- Ability to use without subscription
- Integration with iOS accessibility features


## Frequently asked questions

### Is Control HA App free?

Control HA App is free to download, with no in-app purchases.

### Is Sound Amplifier free?

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

### Which has better reviews, Control HA App or Sound Amplifier?

Sound Amplifier is rated higher. Control HA App averages 4.5 out of 5 from 2 ratings, while Sound Amplifier averages 4.6 from 1.2K ratings.

### Do Control HA App or Sound Amplifier have ads?

Neither Control HA App nor Sound Amplifier shows ads.

### Which is updated more often, Control HA App or Sound Amplifier?

Control HA App ships an update every 10 months, and Sound Amplifier every 2 weeks. Most recently, Control HA App was updated on October 2, 2026 and Sound Amplifier on October 19, 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.*