# Sound Control DSP vs SpotEQ31

The clearest difference is in-app purchases: Sound Control DSP at none against SpotEQ31's 2. Sound Control DSP also leads on ads (none vs shown) and iOS requirement (11.0 vs 16.6). SpotEQ31's advantage is update cadence (weekly vs every 2 months). On price and device support there is nothing between them.

Both are free to download. SpotEQ31 sells 2 in-app purchases, starting at $2.99 per month. Sound Control DSP asks for nothing beyond the download.

Sound Control DSP ships an update every 2 months, SpotEQ31 weekly. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Sound Control DSP | SpotEQ31 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Weekly** |
| Size | 5 MB | 58 MB |
| Requires iOS | **11.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | +12 |
| Developer | [SEIKAKU](https://appshunter.io/developer/860317297) | [LeanderCreative AB](https://appshunter.io/developer/1895968949) |

## What reviewers say

### Sound Control DSP

[App page](https://appshunter.io/ios/app/sound-control-dsp/id6459363803)

**Features:** macOS Compatibility

**In-app purchases:** none


### SpotEQ31

[App page](https://appshunter.io/ios/app/spoteq31/id6765487020)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Subscription | $2.99 | per month |
| Basic Features | $9.99 | one-time |


## Frequently asked questions

### Is Sound Control DSP free?

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

### Is SpotEQ31 free?

SpotEQ31 is free to download, with in-app purchases available.

### Do Sound Control DSP or SpotEQ31 have ads?

SpotEQ31 shows ads; Sound Control DSP does not.

### Which is updated more often, Sound Control DSP or SpotEQ31?

Sound Control DSP ships an update every 2 months, and SpotEQ31 weekly. Most recently, Sound Control DSP was updated on October 24, 2026 and SpotEQ31 on October 12, 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.*