# Piazza vs USC Gateway for Mobile

The clearest difference is update cadence: Piazza at every 11 days against USC Gateway for Mobile's every 3 months. Piazza also leads on ratings volume (282 vs 20) and review sentiment (14% vs 0%). USC Gateway for Mobile's advantage is iOS requirement (10.3 vs 15.6). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 2.1 for Piazza against 2.0 for USC Gateway for Mobile. That said, the two scores are not equally well evidenced: Piazza has 282 ratings behind it against 20, so its average is the more settled of the two. Written reviews are what separate them: 14% of Piazza's written reviews are positive against 0% of USC Gateway for Mobile's.

Piazza ships an update every 11 days, USC Gateway for Mobile every 3 months. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Piazza | USC Gateway for Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.1 (282 ratings)](https://appshunter.io/ios/app/piazza/id453142230/reviews)** | [2.0 (20 ratings)](https://appshunter.io/ios/app/usc-gateway-for-mobile/id1209082374/reviews) |
| Number of ratings | **282** | 20 |
| Positive reviews | **14.2% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 3 months |
| Monetization | Free | Free |
| Size | 3 MB | 16 MB |
| Requires iOS | 15.6 | **10.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Piazza Technologies, Inc.](https://appshunter.io/developer/453142233) | [University of Southern California Apps](https://appshunter.io/developer/540434445) |

## What reviewers say

### Piazza

[App page](https://appshunter.io/ios/app/piazza/id453142230)

This platform facilitates communication and learning for higher education. Students can ask and answer questions, while instructors can monitor student engagement. It provides real-time updates and a centralized space for class interactions.

**Highlights:** Ask and answer questions, Real-time updates, Centralized class communication, Student engagement monitoring, Mobile access for students and instructors

**In-app purchases:** none

**What reviewers like**

- 🚀 Useful app
- 🚀 Great for tracking classes
- 🚀 Convenient mobile access

**What reviewers complain about**

- 🐛 Crashes frequently
- 🐛 Buggy and unreliable
- 🐛 Lacks key features from web version
- 🐛 Poor user interface and navigation
- 🔒 Login and authentication issues

**Reported bugs**

- Inability to post or reply
- Randomly logs out users
- Fails to load posts and resources
- Incompatible with newer iOS versions

**Requested features**

- Dark mode option
- Ability to access course materials
- Improved formatting and editing tools
- Better organization of posts and discussions
- Seamless integration with web version


### USC Gateway for Mobile

[App page](https://appshunter.io/ios/app/usc-gateway-for-mobile/id1209082374)

Access essential campus services, including news, events, maps, and a student portal. Stay connected with shuttle schedules and the university directory.

**Highlights:** Campus news and events, Interactive campus maps, Shuttle schedules, University directory, Student portal access

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Piazza free?

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

### Is USC Gateway for Mobile free?

USC Gateway for Mobile is free to download, with no in-app purchases.

### Which has better reviews, Piazza or USC Gateway for Mobile?

Piazza is rated higher. Piazza averages 2.1 out of 5 from 282 ratings, while USC Gateway for Mobile averages 2.0 from 20 ratings.

### Do Piazza or USC Gateway for Mobile have ads?

Neither Piazza nor USC Gateway for Mobile shows ads.

### Which is updated more often, Piazza or USC Gateway for Mobile?

Piazza ships an update every 11 days, and USC Gateway for Mobile every 3 months. Most recently, Piazza was updated on October 22, 2026 and USC Gateway for Mobile 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.*