# SFA Discovery vs Equalizer + Volume Booster

The clearest difference is in-app purchases: SFA Discovery at none against Equalizer + Volume Booster's 2. SFA Discovery also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.1). Equalizer + Volume Booster's advantage is update cadence (every 6 weeks vs every 4 months). On price and device support there is nothing between them.

Both are free to download. Equalizer + Volume Booster sells 2 in-app purchases, starting at $2.99 per 7 days. SFA Discovery asks for nothing beyond the download.

SFA Discovery ships an update every 4 months, Equalizer + Volume Booster every 6 weeks. The most recent releases landed on October 4, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | SFA Discovery | Equalizer + Volume Booster |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Size | 14 MB | 68 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Petroliam Nasional Berhad (PETRONAS)](https://appshunter.io/developer/650521042) | [MELIORAPPS INTERACTIVE, SRL](https://appshunter.io/developer/1579240957) |

## What reviewers say

### SFA Discovery

[App page](https://appshunter.io/ios/app/sfa-discovery/id1590306349)

**Features:** macOS Compatibility

**In-app purchases:** none


### Equalizer + Volume Booster

[App page](https://appshunter.io/ios/app/equalizer-plus-volume-booster/id6444832616)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Music Amplifier Weekly | $2.99 | per 7 days |
| Bass Booster Monthly | $9.99 | per month |


## Frequently asked questions

### Is SFA Discovery free?

SFA Discovery is free to download, with no in-app purchases.

### Is Equalizer + Volume Booster free?

Equalizer + Volume Booster is free to download, with in-app purchases available.

### Do SFA Discovery or Equalizer + Volume Booster have ads?

Equalizer + Volume Booster shows ads; SFA Discovery does not.

### Which is updated more often, SFA Discovery or Equalizer + Volume Booster?

SFA Discovery ships an update every 4 months, and Equalizer + Volume Booster every 6 weeks. Most recently, SFA Discovery was updated on October 4, 2026 and Equalizer + Volume Booster on October 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.*