# Cognito vs PaperStack CAIE Past Papers

The clearest difference is in-app purchases: Cognito at none against PaperStack CAIE Past Papers's 4. Cognito also leads on ads (none vs shown) and rating (4.9 vs 4.7). PaperStack CAIE Past Papers's advantage is update cadence (every 6 days vs every 5 weeks). On price and device support 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. Cognito asks for nothing beyond the download.

Cognito holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 10 and 3 respectively. Written reviews point the same way: 60% of Cognito's written reviews are positive against 50% of PaperStack CAIE Past Papers's.

Cognito ships an update every 5 weeks, PaperStack CAIE Past Papers every 6 days. The most recent releases landed on October 7, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Cognito | PaperStack CAIE Past Papers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (10 ratings)](https://appshunter.io/ios/app/cognito-universal-study-app/id1479567470/reviews)** | [4.7 (3 ratings)](https://appshunter.io/ios/app/paperstack-caie-past-papers/id6761936480/reviews) |
| Number of ratings | **10** | 3 |
| Positive reviews | **60.0% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 6 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 54 MB | 90 MB |
| Requires iOS | **12.1** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kram Technologies, Inc.](https://appshunter.io/developer/1479567469) | [Salman Tariq](https://appshunter.io/developer/1892139840) |

## What reviewers say

### Cognito

[App page](https://appshunter.io/ios/app/cognito-universal-study-app/id1479567470)

Create and practice interactive study materials like flashcards and practice tests. This platform offers a fast and affordable way to prepare for exams with unlimited access to content creation and study tools.

**Highlights:** Create flashcards, Practice tests, Study guides, Notes, Outlines, Unlimited content creation

**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 Cognito free?

Cognito 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.

### Which has better reviews, Cognito or PaperStack CAIE Past Papers?

Cognito is rated higher. Cognito averages 4.9 out of 5 from 10 ratings, while PaperStack CAIE Past Papers averages 4.7 from 3 ratings.

### Do Cognito or PaperStack CAIE Past Papers have ads?

PaperStack CAIE Past Papers shows ads; Cognito does not.

### Which is updated more often, Cognito or PaperStack CAIE Past Papers?

Cognito ships an update every 5 weeks, and PaperStack CAIE Past Papers every 6 days. Most recently, Cognito was updated on October 7, 2026 and PaperStack CAIE Past Papers on October 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*