# Zetamac Arithmetic Practice vs Hackathons @ Berkeley

The clearest difference is update cadence: Zetamac Arithmetic Practice at daily against Hackathons @ Berkeley's every 9 days. Zetamac Arithmetic Practice also leads on ratings volume (18 vs 2). Hackathons @ Berkeley's advantage is rating (5.0 vs 4.7). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Hackathons @ Berkeley holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Zetamac Arithmetic Practice has 18 ratings behind it against 2, so its average is the more settled of the two.

Zetamac Arithmetic Practice ships an update daily, Hackathons @ Berkeley every 9 days. The most recent releases landed on October 1, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Zetamac Arithmetic Practice | Hackathons @ Berkeley |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (18 ratings)](https://appshunter.io/ios/app/zetamac-arithmetic-practice/id6737153617/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/hackathons-berkeley/id6761351929/reviews)** |
| Number of ratings | **18** | 2 |
| Positive reviews | 82.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 9 days |
| Monetization | Free | Free |
| Size | 1 MB | 96 MB |
| Requires iOS | 17.5 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Joseph Ma](https://appshunter.io/developer/1774979062) | [Cal Hacks Foundation](https://appshunter.io/developer/1889076569) |

## What reviewers say

### Zetamac Arithmetic Practice

[App page](https://appshunter.io/ios/app/zetamac-arithmetic-practice/id6737153617)

This app offers mental math practice tailored for quantitative finance professionals. It focuses on improving calculation speed and accuracy for complex numerical problems.

**Highlights:** Mental math practice, Quantitative finance focus, Calculation speed improvement, Accuracy enhancement, Numerical problem solving

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

**In-app purchases:** none


### Hackathons @ Berkeley

[App page](https://appshunter.io/ios/app/hackathons-berkeley/id6761351929)

This app serves as an official companion for an AI hackathon, providing a central hub for attendees. Users can view the schedule, filter events, set reminders, and access venue maps. It also facilitates receiving important announcements and digital credentials.

**Highlights:** View full hackathon schedule, Search and filter events, Bookmark events for reminders, Explore venue maps, Receive announcements, Access digital badge

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

**In-app purchases:** none


## Frequently asked questions

### Is Zetamac Arithmetic Practice free?

Zetamac Arithmetic Practice is free to download, with no in-app purchases.

### Is Hackathons @ Berkeley free?

Hackathons @ Berkeley is free to download, with no in-app purchases.

### Which has better reviews, Zetamac Arithmetic Practice or Hackathons @ Berkeley?

Hackathons @ Berkeley is rated higher. Zetamac Arithmetic Practice averages 4.7 out of 5 from 18 ratings, while Hackathons @ Berkeley averages 5.0 from 2 ratings.

### Do Zetamac Arithmetic Practice or Hackathons @ Berkeley have ads?

Neither Zetamac Arithmetic Practice nor Hackathons @ Berkeley shows ads.

### Which is updated more often, Zetamac Arithmetic Practice or Hackathons @ Berkeley?

Zetamac Arithmetic Practice ships an update daily, and Hackathons @ Berkeley every 9 days. Most recently, Zetamac Arithmetic Practice was updated on October 1, 2026 and Hackathons @ Berkeley on September 26, 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.*