# Smart Peace Zone vs Class 9 Study App by EduRev

The clearest difference is in-app purchases: Smart Peace Zone at none against Class 9 Study App by EduRev's 10. Class 9 Study App by EduRev's advantage is update cadence (every 3 months vs every 8 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Class 9 Study App by EduRev sells 10 one-off in-app purchases. Smart Peace Zone asks for nothing beyond the download.

Smart Peace Zone ships an update every 8 months, Class 9 Study App by EduRev every 3 months. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Smart Peace Zone | Class 9 Study App by EduRev |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/class-9-study-app-by-edurev/id6740721112/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | — | Free with in-app purchases |
| Size | 95 MB | 86 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [C.S. InfoTech](https://appshunter.io/developer/1239116634) | [EDUREV LEARNING PRIVATE LIMITED](https://appshunter.io/developer/1529835496) |

## What reviewers say

### Smart Peace Zone

[App page](https://appshunter.io/ios/app/smart-peace-zone/id6736380396)

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

**In-app purchases:** none


### Class 9 Study App by EduRev

[App page](https://appshunter.io/ios/app/class-9-study-app-by-edurev/id6740721112)

This app provides comprehensive study materials for 9th-grade students, including NCERT textbooks, solutions, past papers, MCQs, and video lectures. It covers all subjects and aligns with the latest CBSE syllabus and guidelines.

**Highlights:** NCERT Textbooks & Solutions, CBSE Past Year & Sample Papers, MCQs and Online Tests, Video Lectures, RD Sharma & Lakhmir Singh Solutions, Revision Notes

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EduRev Plan 1 | $2.99 | one-time |
| EduRev Plan 4 | $6.99 | one-time |
| EduRev Plan 6 | $9.99 | one-time |
| EduRev Plan 13 | $24.99 | one-time |
| EduRev Plan 17 | $49.99 | one-time |
| EduRev Plan 18 | $59.99 | one-time |
| EduRev Plan 21 | $149.99 | one-time |
| EduRev Plan 22 | $199.99 | one-time |
| EduRev Plan 23 | $249.99 | one-time |
| EduRev Plan 25 | $399.99 | one-time |


## Frequently asked questions

### Is Smart Peace Zone free?

Smart Peace Zone is free to download, with no in-app purchases.

### Is Class 9 Study App by EduRev free?

Class 9 Study App by EduRev is free to download, with in-app purchases available.

### Do Smart Peace Zone or Class 9 Study App by EduRev have ads?

Neither Smart Peace Zone nor Class 9 Study App by EduRev shows ads.

### Which is updated more often, Smart Peace Zone or Class 9 Study App by EduRev?

Smart Peace Zone ships an update every 8 months, and Class 9 Study App by EduRev every 3 months. Most recently, Smart Peace Zone was updated on October 27, 2026 and Class 9 Study App by EduRev on October 30, 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.*