# Flex Controller vs Speaker Cleaner

The clearest difference is in-app purchases: Flex Controller at none against Speaker Cleaner's 2. Speaker Cleaner's advantage is update cadence (every 3 days vs every 13 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Speaker Cleaner sells 2 in-app purchases, starting at $9.99 per 7 days. Flex Controller asks for nothing beyond the download.

Flex Controller ships an update every 13 months, Speaker Cleaner every 3 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Flex Controller | Speaker Cleaner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/speaker-cleaner-sonic-clean/id6808565352/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 31 MB | 32 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Poolsure, a division of Aquasol Controllers, Inc.](https://appshunter.io/developer/1545322313) | [Novatech HK Limited](https://appshunter.io/developer/6815160578) |

## What reviewers say

### Flex Controller

[App page](https://appshunter.io/ios/app/flex-controller/id6741504172)

**Features:** macOS Compatibility

**In-app purchases:** none


### Speaker Cleaner

[App page](https://appshunter.io/ios/app/speaker-cleaner-sonic-clean/id6808565352)

This app uses specific sound frequencies to help dislodge water and debris from your device's speaker. Simply play the sound and let it vibrate your speaker to potentially restore clear audio. It's a simple, software-based solution for muffled sound.

**Highlights:** Sound frequency speaker cleaning, Multiple cleaning frequencies, One-tap cleaning process, Selectable audio output, Distraction-free interface, No special equipment needed

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Speaker_Week_VIP | $9.99 | per 7 days |
| Speaker_Year_VIP | $39.99 | per year |


## Frequently asked questions

### Is Flex Controller free?

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

### Is Speaker Cleaner free?

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

### Do Flex Controller or Speaker Cleaner have ads?

Neither Flex Controller nor Speaker Cleaner shows ads.

### Which is updated more often, Flex Controller or Speaker Cleaner?

Flex Controller ships an update every 13 months, and Speaker Cleaner every 3 days. Most recently, Flex Controller was updated on October 28, 2026 and Speaker Cleaner on October 24, 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.*