# Sound Tune vs FlexTune

The clearest difference is review sentiment: FlexTune at 40% against Sound Tune's 20%. FlexTune also leads on iOS requirement (8.2 vs 11.0). Sound Tune's advantage is rating (3.0 vs 2.8) and update cadence (every 2 months vs every 3 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sound Tune holds the better App Store score, 3.0 against 2.8. Both are backed by a comparable volume of ratings — 35 and 10 respectively. Written reviews complicate that: 20% of Sound Tune's written reviews are positive against 40% of FlexTune's, so the app with the better star average is not the one people write more warmly about.

Sound Tune ships an update every 2 months, FlexTune every 3 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | Sound Tune | FlexTune |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (35 ratings)](https://appshunter.io/ios/app/sound-tune/id1353769881/reviews)** | [2.8 (10 ratings)](https://appshunter.io/ios/app/flextune/id1417233546/reviews) |
| Number of ratings | **35** | 10 |
| Positive reviews | 19.6% of reviews | **40.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 112 MB | 16 MB |
| Requires iOS | 11.0 | **8.2** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Pioneer Corporation](https://appshunter.io/developer/326612330) | [Kicker](https://appshunter.io/developer/1632645523) |

## What reviewers say

### Sound Tune

[App page](https://appshunter.io/ios/app/sound-tune/id1353769881)

Enhance your car's audio system with advanced sound tuning capabilities. Easily adjust equalization, time alignment, and network modes directly from your smartphone to achieve high-end audio quality even with basic factory stereos.

**Highlights:** 31-band equalizer, Time alignment, 3-Way network mode, Super "Todoroki" Sound, Live simulation

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

**In-app purchases:** none


### FlexTune

[App page](https://appshunter.io/ios/app/flextune/id1417233546)

Personalize your car's audio system with this app. Easily adjust bass, clarity, and other sound settings using a five-band equalizer and create custom profiles for different music or moods. Enjoy wireless control of your KICKER audio system.

**Highlights:** Variable Five-Band Parametric Equalizer, Multiple Custom Presets, Remote KICKER Subwoofer Gain, Adjustable Center-Image Control, Bluetooth LE Enabled, Wireless Control

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

**In-app purchases:** none


## Frequently asked questions

### Is Sound Tune free?

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

### Is FlexTune free?

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

### Which has better reviews, Sound Tune or FlexTune?

Sound Tune is rated higher. Sound Tune averages 3.0 out of 5 from 35 ratings, while FlexTune averages 2.8 from 10 ratings.

### Do Sound Tune or FlexTune have ads?

Neither Sound Tune nor FlexTune shows ads.

### Which is updated more often, Sound Tune or FlexTune?

Sound Tune ships an update every 2 months, and FlexTune every 3 months. Most recently, Sound Tune was updated on November 2, 2026 and FlexTune on November 2, 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.*