# Predixa vs ShadowAlpha AI

The clearest difference is in-app purchases: ShadowAlpha AI at none against Predixa's 2. ShadowAlpha AI also leads on iOS requirement (16.4 vs 18.5). Predixa's advantage is update cadence (daily vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. Predixa sells 2 in-app purchases, starting at $19.99 per month. ShadowAlpha AI asks for nothing beyond the download.

Predixa ships an update daily, ShadowAlpha AI every 6 months. The most recent releases landed on October 11, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Predixa | ShadowAlpha AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Daily** | Every 6 months |
| Size | 25 MB | 48 MB |
| Requires iOS | 18.5 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lingxiao Ma](https://appshunter.io/developer/1845498931) | [Alexander Jacobs](https://appshunter.io/developer/1183543068) |

## What reviewers say

### Predixa

[App page](https://appshunter.io/ios/app/predixa/id6753886048)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $19.99 | per month |
| Yearly Pro | $179.99 | per year |


### ShadowAlpha AI

[App page](https://appshunter.io/ios/app/shadowalpha-ai/id6760703677)

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

**In-app purchases:** none


## Frequently asked questions

### Is Predixa free?

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

### Is ShadowAlpha AI free?

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

### Do Predixa or ShadowAlpha AI have ads?

Neither Predixa nor ShadowAlpha AI shows ads.

### Which is updated more often, Predixa or ShadowAlpha AI?

Predixa ships an update daily, and ShadowAlpha AI every 6 months. Most recently, Predixa was updated on October 11, 2026 and ShadowAlpha AI on October 1, 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.*