# Professory vs Drossi

The clearest difference is review sentiment: Drossi at 100% against Professory's 50%. Drossi also leads on rating (4.8 vs 4.3) and in-app purchases (none vs 2). Professory's advantage is update cadence (fortnightly vs every 2 months) and ratings volume (28 vs 5). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Professory sells 2 in-app purchases, starting at $9.99 per 3 months. Drossi asks for nothing beyond the download.

Drossi holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Professory has 28 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 50% of Professory's written reviews are positive against 100% of Drossi's.

Professory ships an update fortnightly, Drossi every 2 months. The most recent releases landed on September 20, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Professory | Drossi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (28 ratings)](https://appshunter.io/ios/app/professory/id1048213048/reviews) | **[4.8 (5 ratings)](https://appshunter.io/ios/app/drossi/id6746405080/reviews)** |
| Number of ratings | **28** | 5 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 91 MB | 18 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Abdulaziz Alshamma](https://appshunter.io/developer/999762147) | [Tocaan](https://appshunter.io/developer/1404515332) |

## What reviewers say

### Professory

[App page](https://appshunter.io/ios/app/professory/id1048213048)

This academic companion helps students make informed decisions about courses and professors through peer reviews. It also features a GPA calculator, a marketplace for used textbooks, and an AI assistant for academic inquiries.

**Highlights:** Rate professors and courses, GPA calculator, Used book marketplace, AI-powered academic assistant, University ratings and reviews, Social timeline for peers

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3 Month Subscription | $9.99 | per 3 months |
| 12 Month Subscription (10KD) | $24.99 | per year |


### Drossi

[App page](https://appshunter.io/ios/app/drossi/id6746405080)

This educational app simplifies university courses and provides clear explanations for lessons. It aims to make learning more accessible for students. The application is designed to enhance understanding of complex academic material.

**Highlights:** Simplifies university courses, Explains academic lessons, Enhances learning accessibility, Supports iPhone and iPad

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Professory free?

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

### Is Drossi free?

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

### Which has better reviews, Professory or Drossi?

Drossi is rated higher. Professory averages 4.3 out of 5 from 28 ratings, while Drossi averages 4.8 from 5 ratings.

### Do Professory or Drossi have ads?

Professory shows ads; Drossi does not.

### Which is updated more often, Professory or Drossi?

Professory ships an update fortnightly, and Drossi every 2 months. Most recently, Professory was updated on September 20, 2026 and Drossi on September 17, 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.*