# DOSS Assistant vs Sound Amplifier

The clearest difference is rating: Sound Amplifier at 4.6 against DOSS Assistant's 3.7. Sound Amplifier also leads on ratings volume (1.2K vs 3) and update cadence (every 2 weeks vs monthly). DOSS Assistant's advantage is in-app purchases (none vs 6) and iOS requirement (12.0 vs 15.0). On price, 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. DOSS Assistant asks for nothing beyond the download.

Sound Amplifier holds the better App Store score, 4.6 against 3.7. That said, the two scores are not equally well evidenced: Sound Amplifier has 1.2K ratings behind it against 3, so its average is the more settled of the two.

DOSS Assistant ships an update monthly, Sound Amplifier every 2 weeks. The most recent releases landed on October 3, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | DOSS Assistant | Sound Amplifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/doss-assistant/id1213678647/reviews) | **[4.6 (1.2K ratings)](https://appshunter.io/ios/app/sound-amplifier/id1615079093/reviews)** |
| Number of ratings | 3 | **1.2K** |
| Positive reviews | — | 34.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 150 MB | 23 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | +4 |
| Developer | [Wonders Technology Co.,Ltd](https://appshunter.io/developer/393352744) | [Mighty Fine Apps LLC](https://appshunter.io/developer/973529494) |

## What reviewers say

### DOSS Assistant

[App page](https://appshunter.io/ios/app/doss-assistant/id1213678647)

Control your DOSS Assistant wireless Wi-Fi music system directly from your iOS device. Connect to your home Wi-Fi network to manage your music playback and settings.

**Highlights:** Connect to home Wi-Fi, Control music systems, Wireless audio management, iOS device integration

**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 DOSS Assistant free?

DOSS Assistant 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, DOSS Assistant or Sound Amplifier?

Sound Amplifier is rated higher. DOSS Assistant averages 3.7 out of 5 from 3 ratings, while Sound Amplifier averages 4.6 from 1.2K ratings.

### Do DOSS Assistant or Sound Amplifier have ads?

Neither DOSS Assistant nor Sound Amplifier shows ads.

### Which is updated more often, DOSS Assistant or Sound Amplifier?

DOSS Assistant ships an update monthly, and Sound Amplifier every 2 weeks. Most recently, DOSS Assistant was updated on October 3, 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.*