# 321GO vs PRed

The clearest difference is in-app purchases: 321GO at none against PRed's 2. 321GO also leads on update cadence (every 4 days vs every 3 weeks). PRed's advantage is iOS requirement (15.1 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. PRed sells 2 in-app purchases, starting at $8.99 per month. 321GO asks for nothing beyond the download.

321GO ships an update every 4 days, PRed every 3 weeks. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 321GO | PRed |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Size | 18 MB | 51 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Donghan Choi](https://appshunter.io/developer/1095187081) | [haehoon seo](https://appshunter.io/developer/1889129994) |

## What reviewers say

### 321GO

[App page](https://appshunter.io/ios/app/321go/id6761284904)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### PRed

[App page](https://appshunter.io/ios/app/pred-ai-workout-log/id6761363197)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRed Pro Monthly | $8.99 | per month |
| PRed Pro Yearly | $69.99 | per year |


## Frequently asked questions

### Is 321GO free?

321GO is free to download, with no in-app purchases.

### Is PRed free?

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

### Do 321GO or PRed have ads?

Neither 321GO nor PRed shows ads.

### Which is updated more often, 321GO or PRed?

321GO ships an update every 4 days, and PRed every 3 weeks. Most recently, 321GO was updated on October 19, 2026 and PRed on October 24, 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.*