# SJCHYD vs The Profesor

The clearest difference is in-app purchases: SJCHYD at none against The Profesor's 7. SJCHYD also leads on ads (none vs shown). The Profesor's advantage is update cadence (every 4 days vs every 9 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. The Profesor sells 7 in-app purchases, starting at $4.99 per month. SJCHYD asks for nothing beyond the download.

SJCHYD ships an update every 9 months, The Profesor every 4 days. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | SJCHYD | The Profesor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 4 days** |
| Size | 23 MB | 54 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [LRR Technologies (Hyderabad) Private Limited](https://appshunter.io/developer/1120119116) | [Skillstride Academy Pvt Ltd](https://appshunter.io/developer/1835232104) |

## What reviewers say

### SJCHYD

[App page](https://appshunter.io/ios/app/sjchyd/id6739731839)

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

**In-app purchases:** none


### The Profesor

[App page](https://appshunter.io/ios/app/the-profesor/id6751455984)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| Querterly | $49.99 | per 6 months |
| 3 months subscription | $49.99 | per 3 months |
| Hafl Yearly Subscription | $79.99 | per 6 months |
| Year | $119.99 | per year |
| Coins 1 | $0.99 | one-time |
| Coins 2 | $1.99 | one-time |


## Frequently asked questions

### Is SJCHYD free?

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

### Is The Profesor free?

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

### Do SJCHYD or The Profesor have ads?

The Profesor shows ads; SJCHYD does not.

### Which is updated more often, SJCHYD or The Profesor?

SJCHYD ships an update every 9 months, and The Profesor every 4 days. Most recently, SJCHYD was updated on November 4, 2026 and The Profesor on October 30, 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.*