# S1 vs Headphone Booster, Amplifier

S1 and Headphone Booster, Amplifier both sit at 4.5 stars, but that hides the real split: 100% of S1's written reviews are positive against 25% of Headphone Booster, Amplifier's. S1 also leads on update cadence (every 5 weeks vs every 4 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. S1 sells 5 in-app purchases, starting at $2.99 per 7 days and Headphone Booster, Amplifier sells 3 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.5 for S1 against 4.4 for Headphone Booster, Amplifier. Both are backed by a comparable volume of ratings — 89 and 122 respectively. Written reviews are what separate them: 100% of S1's written reviews are positive against 25% of Headphone Booster, Amplifier's.

S1 ships an update every 5 weeks, Headphone Booster, Amplifier every 4 months. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | S1 | Headphone Booster, Amplifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (89 ratings)](https://appshunter.io/ios/app/s1-s2-controller-for-sonos/id6670489178/reviews)** | [4.4 (122 ratings)](https://appshunter.io/ios/app/headphone-booster-amplifier/id6748903211/reviews) |
| Number of ratings | 89 | **122** |
| Positive reviews | **100.0% of reviews** | 25.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 54 MB | 395 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Premier Mobile Apps](https://appshunter.io/developer/1766501140) | [Jason Smith](https://appshunter.io/developer/1767161875) |

## What reviewers say

### S1

[App page](https://appshunter.io/ios/app/s1-s2-controller-for-sonos/id6670489178)

Control your Sonos and other Bluetooth speakers with ease. Automatically discover nearby speakers and stream music from your gallery or local storage. Record and play sound clips on demand for a more powerful audio experience.

**Highlights:** Automatic speaker detection, Stream music from gallery, Stream music from local storage, Resume previous cast sessions, Record and play sound clips

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Sonos Speaker Control | $2.99 | per 7 days |
| Speaker Controller Weekly | $3.99 | per 7 days |
| Yearly Sonos Speaker Control | $9.99 | per year |
| S1 S2 Speaker Lifetime Premium | $7.99 | one-time |
| Speaker Controller Lifetime | $19.99 | one-time |


### Headphone Booster, Amplifier

[App page](https://appshunter.io/ios/app/headphone-booster-amplifier/id6748903211)

Enhance your audio experience with powerful bass boosting and advanced sound effects. Customize your music with filters and pitch adjustments, and enjoy background playback for uninterrupted listening. Optimized for headphones and external speakers.

**Highlights:** Bass Booster, Wave Flanger effect, Dooper Pitch effect, Intuitive interface, Media volume control, Background playback

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $7.99 | per 7 days |
| Weekly Trial Subscription | $7.99 | per 7 days |
| Annual | $29.99 | per year |


## Frequently asked questions

### Is S1 free?

S1 is free to download, with in-app purchases available.

### Is Headphone Booster, Amplifier free?

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

### Which has better reviews, S1 or Headphone Booster, Amplifier?

S1 is rated higher. S1 averages 4.5 out of 5 from 89 ratings, while Headphone Booster, Amplifier averages 4.4 from 122 ratings.

### Do S1 or Headphone Booster, Amplifier have ads?

Neither S1 nor Headphone Booster, Amplifier shows ads.

### Which is updated more often, S1 or Headphone Booster, Amplifier?

S1 ships an update every 5 weeks, and Headphone Booster, Amplifier every 4 months. Most recently, S1 was updated on October 30, 2026 and Headphone Booster, Amplifier on November 5, 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.*