# FRF21TT vs Volume Booster

The clearest difference is in-app purchases: FRF21TT at none against Volume Booster's 1. FRF21TT also leads on rating (5.0 vs 4.6). Volume Booster's advantage is ratings volume (7 vs 1). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Volume Booster sells 1 one-off in-app purchase. FRF21TT asks for nothing beyond the download.

FRF21TT holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Volume Booster has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 94% of FRF21TT's written reviews are positive against 100% of Volume Booster's, so the app with the better star average is not the one people write more warmly about.

FRF21TT ships an update every 4 months, Volume Booster every 5 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | FRF21TT | Volume Booster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/frf21tt/id1566437801/reviews)** | [4.6 (7 ratings)](https://appshunter.io/ios/app/volume-booster-sound-effect/id6757384764/reviews) |
| Number of ratings | 1 | **7** |
| Positive reviews | 94.4% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 5 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 60 MB | 87 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Ryota Iwai](https://appshunter.io/developer/444566741) | [Sachinbhai Surani](https://appshunter.io/developer/1838685550) |

## What reviewers say

### FRF21TT

[App page](https://appshunter.io/ios/app/frf21tt/id1566437801)

This app helps you plan your festival experience by displaying stage timetables and performer information. You can create a personalized schedule by adding acts to your own timetable and easily navigate to the current time.

**Highlights:** Stage timetables, Performer information, Customizable personal timetable, Autoscroll to present time, Update timetable data

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

**In-app purchases:** none


### Volume Booster

[App page](https://appshunter.io/ios/app/volume-booster-sound-effect/id6757384764)

Amplify your audio experience by increasing sound levels up to 200x. This utility allows for precise volume adjustment, saving boosted audio files, and easy sharing for music, videos, and more.

**Highlights:** Increase audio levels beyond default limits, Save user-selected audio files, Share enhanced audio files, Precise volume adjustment slider, Lightweight and reliable design

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime premium | $9.99 | one-time |


## Frequently asked questions

### Is FRF21TT free?

FRF21TT is free to download, with no in-app purchases.

### Is Volume Booster free?

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

### Which has better reviews, FRF21TT or Volume Booster?

FRF21TT is rated higher. FRF21TT averages 5.0 out of 5 from 1 ratings, while Volume Booster averages 4.6 from 7 ratings.

### Do FRF21TT or Volume Booster have ads?

Neither FRF21TT nor Volume Booster shows ads.

### Which is updated more often, FRF21TT or Volume Booster?

FRF21TT ships an update every 4 months, and Volume Booster every 5 months. Most recently, FRF21TT was updated on November 3, 2026 and Volume Booster on October 31, 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.*