# Kaizen High School vs PaperStack CAIE Past Papers

The clearest difference is in-app purchases: Kaizen High School at none against PaperStack CAIE Past Papers's 4. Kaizen High School also leads on iOS requirement (11.0 vs 15.5). PaperStack CAIE Past Papers's advantage is device support. On price there is nothing between them.

Both are free to download. PaperStack CAIE Past Papers sells 4 in-app purchases, starting at $1.99 per 7 days. Kaizen High School asks for nothing beyond the download.

## The numbers

| Metric | Kaizen High School | PaperStack CAIE Past Papers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (3 ratings)](https://appshunter.io/ios/app/paperstack-caie-past-papers/id6761936480/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | — | Yes |
| Update frequency | — | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 28 MB | 93 MB |
| Requires iOS | **11.0** | 15.5 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [CYBER ADVANCE SOLUTIONS (PRIVATE) LIMITED](https://appshunter.io/developer/1492413003) | [Salman Tariq](https://appshunter.io/developer/1892139840) |

## What reviewers say

### Kaizen High School

[App page](https://appshunter.io/ios/app/kaizen-high-school/id6553994548)

**In-app purchases:** none


### PaperStack CAIE Past Papers

[App page](https://appshunter.io/ios/app/paperstack-caie-past-papers/id6761936480)

Access over 15,000 CAIE past papers with an AI tutor and multiplayer revision modes. Practice by topic or year, solve MCQs interactively, and study offline.  Features include smart PDF viewing and annotation tools.

**Highlights:** 15,000+ CAIE past papers, AI Tutor with examiner insights, Real-time multiplayer revision, Topical paper generation, Interactive MCQ solver, Offline access, Smart PDF viewer with annotations

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $1.99 | per 7 days |
| Monthly Premium | $3.99 | per month |
| PaperStack Premium 6 Months | $24.99 | per 6 months |
| PaperStack Premium Yearly | $39.99 | per year |


## Frequently asked questions

### Is Kaizen High School free?

Kaizen High School is free to download, with no in-app purchases.

### Is PaperStack CAIE Past Papers free?

PaperStack CAIE Past Papers is free to download, with in-app purchases available.

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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.*