# Quizquake vs Einstein Study AI Coach

The clearest difference is in-app purchases: Quizquake at none against Einstein Study AI Coach's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Einstein Study AI Coach sells 2 in-app purchases, starting at $5.99 per month. Quizquake asks for nothing beyond the download.

Quizquake ships an update every 5 days, Einstein Study AI Coach every 3 days. The most recent releases landed on November 4, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Quizquake | Einstein Study AI Coach |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/quizquake/id6743756530/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 3 days** |
| Monetization | Free | — |
| Size | 16 MB | 18 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Gonzalo Fuentes](https://appshunter.io/developer/1651276416) | [Daniel Plata](https://appshunter.io/developer/1467546479) |

## What reviewers say

### Quizquake

[App page](https://appshunter.io/ios/app/quizquake/id6743756530)

Engage in rapid-fire quiz battles against friends, answering SAT-style questions faster than your opponents. Sharpen your knowledge and climb the leaderboards in this energetic and competitive mobile game.

**Highlights:** Real-time quiz battles with friends, Answer SAT-style questions, Compete for speed and accuracy, Climb leaderboards, Practice mode available, User-friendly interface

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

**In-app purchases:** none


### Einstein Study AI Coach

[App page](https://appshunter.io/ios/app/einstein-study-ai-coach/id6754023929)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium monthly | $5.99 | per month |
| Premium annual | $19.99 | per year |


## Frequently asked questions

### Is Quizquake free?

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

### Is Einstein Study AI Coach free?

Einstein Study AI Coach is free to download, with in-app purchases available.

### Do Quizquake or Einstein Study AI Coach have ads?

Neither Quizquake nor Einstein Study AI Coach shows ads.

### Which is updated more often, Quizquake or Einstein Study AI Coach?

Quizquake ships an update every 5 days, and Einstein Study AI Coach every 3 days. Most recently, Quizquake was updated on November 4, 2026 and Einstein Study AI Coach on October 28, 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.*