# Flat Equalizer vs Volume Booster

The clearest difference is ads: Flat Equalizer at none against Volume Booster's shown. Flat Equalizer also leads on update cadence (fortnightly vs every 2 months). Volume Booster's advantage is iOS requirement (13.0 vs 17.6). On price, review sentiment, in-app purchases and monetization model there is nothing between them.

Both are free to download. Flat Equalizer sells 4 in-app purchases, starting at $2.99 per 7 days and Volume Booster sells 3 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Flat Equalizer ships an update fortnightly, Volume Booster every 2 months. The most recent releases landed on September 29, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Flat Equalizer | Volume Booster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/volume-booster-bass-boost/id6754565249/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 94.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 11 MB | 68 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Md Milon Hossain](https://appshunter.io/developer/1729011832) | [Ripan Hossain](https://appshunter.io/developer/1841496496) |

## What reviewers say

### Flat Equalizer

[App page](https://appshunter.io/ios/app/flat-equalizer/id6753087386)

Enhance your audio with a professional music equalizer and powerful volume booster. Fine-tune tracks with custom presets or create your own settings. Experience immersive sound with advanced features for wired and wireless headphones.

**Highlights:** 10-band music equalizer, Headphone volume booster, Customizable EQ presets, Extra Boost feature, Bluetooth equalizer support, Save custom EQ settings

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Yearly | $99.00 | per year |
| Lifetime | $9.99 | one-time |
| Lifetime | $29.99 | one-time |

**What reviewers like**

- 🔊 Loud and Crystal Clear
- 💎 Crystal Clear Sound
- 🎨 Perfect Sound Customizer
- 🎯 Love the Presets
- 🌟 Highly Recommended


### Volume Booster

[App page](https://appshunter.io/ios/app/volume-booster-bass-boost/id6754565249)

Enhance your device's audio for music, movies, and games. This app amplifies sound beyond default limits, offering clearer and richer audio with a simple interface. Customize settings for a more immersive listening experience.

**Highlights:** Boost volume instantly, Clear and powerful sound enhancement, Smart audio control with bass and treble tuning, One-tap boost functionality, Customizable sound profiles, Safe boosting technology

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $7.99 | per 7 days |
| Monthly Subscription | $24.99 | per month |
| Yearly Subscription | $49.99 | per year |


## Frequently asked questions

### Is Flat Equalizer free?

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

### Is Volume Booster free?

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

### Do Flat Equalizer or Volume Booster have ads?

Volume Booster shows ads; Flat Equalizer does not.

### Which is updated more often, Flat Equalizer or Volume Booster?

Flat Equalizer ships an update fortnightly, and Volume Booster every 2 months. Most recently, Flat Equalizer was updated on September 29, 2026 and Volume Booster on September 23, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*