# Piazza vs Dah

The clearest difference is review sentiment: Dah at 100% against Piazza's 14%. Dah also leads on rating (4.4 vs 2.1) and device support (5 vs 3). Piazza's advantage is in-app purchases (none vs 3) and ratings volume (277 vs 8). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Dah sells 3 one-off in-app purchases. Piazza asks for nothing beyond the download.

Dah holds the better App Store score, 4.4 against 2.1. That said, the two scores are not equally well evidenced: Piazza has 277 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 14% of Piazza's written reviews are positive against 100% of Dah's.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 21, 2026 and July 7, 2026 respectively.

## The numbers

| Metric | Piazza | Dah |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.1 (277 ratings)](https://appshunter.io/ios/app/piazza/id453142230/reviews) | **[4.4 (8 ratings)](https://appshunter.io/ios/app/dah-varsity/id1567771078/reviews)** |
| Number of ratings | **277** | 8 |
| Positive reviews | 14.3% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 3 MB | 3.2 GB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [Piazza Technologies, Inc.](https://appshunter.io/developer/453142233) | [Toyz Electronics](https://appshunter.io/developer/1567771080) |

## 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


### Dah

[App page](https://appshunter.io/ios/app/dah-varsity/id1567771078)

Learn STEAM and entrepreneurship through engaging gameplay. Explore topics like science, math, and arts while being inspired by the creators' journey. Discover resources for after-school activities and college preparation.

**Highlights:** STEAM and entrepreneurship learning, Interactive gaming experience, Inspiration from creators' story, Resources for after-school activities, College preparation guidance, Multilingual support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dah-Varsity Points | $4.99 | one-time |
| Dah-Varsity Points | $9.99 | one-time |
| Deity Dah Life or Death STEMS | $29.99 | one-time |


## Frequently asked questions

### Is Piazza free?

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

### Is Dah free?

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

### Which has better reviews, Piazza or Dah?

Dah is rated higher. Piazza averages 2.1 out of 5 from 277 ratings, while Dah averages 4.4 from 8 ratings.

### Do Piazza or Dah have ads?

Neither Piazza nor Dah shows ads.

### Which is updated more often, Piazza or Dah?

Piazza ships an update fortnightly, and Dah fortnightly. Most recently, Piazza was updated on September 21, 2026 and Dah on July 7, 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.*