# P.A.H.D vs SC

The clearest difference is in-app purchases: P.A.H.D at none against SC's 1. SC's advantage is update cadence (every 5 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SC sells 1 one-off in-app purchase. P.A.H.D asks for nothing beyond the download.

P.A.H.D ships an update every 3 weeks, SC every 5 days. Both last shipped on October 28, 2026.

## The numbers

| Metric | P.A.H.D | SC |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Size | 38 MB | 170 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mentorfy Educação Ltda](https://appshunter.io/developer/1773473673) | [CHOI SEONGMIN](https://appshunter.io/developer/6772332527) |

## What reviewers say

### P.A.H.D

[App page](https://appshunter.io/ios/app/pahd/id6756026811)

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

**In-app purchases:** none


### SC

[App page](https://appshunter.io/ios/app/sc-300-identity-admin-study/id6782108138)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SC-300 Lifetime Access | $4.99 | one-time |


## Frequently asked questions

### Is P.A.H.D free?

P.A.H.D is free to download, with no in-app purchases.

### Is SC free?

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

### Do P.A.H.D or SC have ads?

Neither P.A.H.D nor SC shows ads.

### Which is updated more often, P.A.H.D or SC?

P.A.H.D ships an update every 3 weeks, and SC every 5 days. Most recently, P.A.H.D was updated on October 28, 2026 and SC on October 28, 2026.

---

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