# EyeSound Vocal vs HD Align

The clearest difference is in-app purchases: EyeSound Vocal at none against HD Align's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. HD Align sells 1 one-off in-app purchase. EyeSound Vocal asks for nothing beyond the download.

EyeSound Vocal ships an update every 3 weeks, HD Align monthly. The most recent releases landed on November 8, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | EyeSound Vocal | HD Align |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 3 MB | 28 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [keith house](https://appshunter.io/developer/1728464247) | [发亮 刘](https://appshunter.io/developer/1830179467) |

## What reviewers say

### EyeSound Vocal

[App page](https://appshunter.io/ios/app/eyesound-vocal/id6476980675)

**Features:** macOS Compatibility

**In-app purchases:** none


### HD Align

[App page](https://appshunter.io/ios/app/hd-align-human-design-chart/id6761535359)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Unlock | $8.99 | one-time |


## Frequently asked questions

### Is EyeSound Vocal free?

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

### Is HD Align free?

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

### Do EyeSound Vocal or HD Align have ads?

Neither EyeSound Vocal nor HD Align shows ads.

### Which is updated more often, EyeSound Vocal or HD Align?

EyeSound Vocal ships an update every 3 weeks, and HD Align monthly. Most recently, EyeSound Vocal was updated on November 8, 2026 and HD Align on November 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*