# CSEWhy vs SpacedRevision

The clearest difference is in-app purchases: CSEWhy at none against SpacedRevision's 8. SpacedRevision's advantage is update cadence (every 8 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SpacedRevision sells 8 in-app purchases, starting at $0.99 per 2 months. CSEWhy asks for nothing beyond the download.

CSEWhy ships an update monthly, SpacedRevision every 8 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | CSEWhy | SpacedRevision |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 90.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 8 days** |
| Monetization | — | Free with in-app purchases |
| Size | 55 MB | 89 MB |
| Requires iOS | 16.6 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sivnath Halder](https://appshunter.io/developer/1775412421) | [Spaced Revision](https://appshunter.io/developer/1851924703) |

## What reviewers say

### CSEWhy

[App page](https://appshunter.io/ios/app/csewhy/id6737231064)

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

**In-app purchases:** none


### SpacedRevision

[App page](https://appshunter.io/ios/app/spacedrevision-upsc-and-exams/id6755098751)

This app utilizes active recall and spaced repetition to help students master vast syllabi. It offers expertly crafted flashcards and MCQs based on past papers and key concepts for various Indian competitive exams. Track your progress and identify weak areas for smarter, more effective revision.

**Highlights:** Active Recall and Spaced Repetition, Expertly crafted flashcards and MCQs, Past Year Questions (PYQs) integration, Revision tracker with due cards, Timed mock tests and practice sessions, Detailed analysis of weak areas

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Class X NCERT Social Science | $0.99 | per 2 months |
| UGC NET Exam | $1.99 | per 6 months |
| Sikkim CA January to June 2024 | $1.99 | per 3 months |
| Current Affairs (July to Dec 2024) | $3.99 | per 3 months |
| B.Ed. Entrance Exam | $5.99 | per 3 months |
| Sikkim Current Affairs | $5.99 | per 3 months |
| Current Affairs by MY UPSC Journal | $9.99 | per 6 months |
| UGC NET Paper 1 | $12.99 | per 6 months |


## Frequently asked questions

### Is CSEWhy free?

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

### Is SpacedRevision free?

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

### Do CSEWhy or SpacedRevision have ads?

Neither CSEWhy nor SpacedRevision shows ads.

### Which is updated more often, CSEWhy or SpacedRevision?

CSEWhy ships an update monthly, and SpacedRevision every 8 days. Most recently, CSEWhy was updated on October 25, 2026 and SpacedRevision on October 31, 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.*