# GainX2 vs MelodyHarmonizer

The clearest difference is device support: GainX2 at 4 against MelodyHarmonizer's 2. GainX2 also leads on iOS requirement (12.0 vs 16.6). On price, update cadence, ads and in-app purchases there is nothing between them.

GainX2 costs $1.99 and MelodyHarmonizer $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

GainX2 ships an update every 5 days, MelodyHarmonizer every 4 days. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | GainX2 | MelodyHarmonizer |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 4 days** |
| Size | 12 MB | 101 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Rob Jackson](https://appshunter.io/developer/1072346998) | [Atte Tenkanen](https://appshunter.io/developer/1857262351) |

## What reviewers say

### GainX2

[App page](https://appshunter.io/ios/app/gainx2/id6755764494)

**In-app purchases:** none


### MelodyHarmonizer

[App page](https://appshunter.io/ios/app/melodyharmonizer/id6755915345)

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

**In-app purchases:** none


## Frequently asked questions

### Is GainX2 free?

GainX2 costs $1.99, with no in-app purchases.

### Is MelodyHarmonizer free?

MelodyHarmonizer costs $1.99, with no in-app purchases.

### Do GainX2 or MelodyHarmonizer have ads?

Neither GainX2 nor MelodyHarmonizer shows ads.

### Which is updated more often, GainX2 or MelodyHarmonizer?

GainX2 ships an update every 5 days, and MelodyHarmonizer every 4 days. Most recently, GainX2 was updated on October 7, 2026 and MelodyHarmonizer on October 5, 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.*