# NCERT KATBOOK vs BRAINATHON

The clearest difference is in-app purchases: NCERT KATBOOK at none against BRAINATHON's 1. NCERT KATBOOK also leads on update cadence (every 8 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. BRAINATHON sells 1 one-off in-app purchase. NCERT KATBOOK asks for nothing beyond the download.

NCERT KATBOOK ships an update every 8 days, BRAINATHON every 2 months. The most recent releases landed on March 25, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | NCERT KATBOOK | BRAINATHON |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 2 months |
| Size | 68 MB | 53 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [sarath kakumanu](https://appshunter.io/developer/1317292488) | [TagMango Inc](https://appshunter.io/developer/1611765353) |

## What reviewers say

### NCERT KATBOOK

[App page](https://appshunter.io/ios/app/ncert-katbook/id6753007971)

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

**In-app purchases:** none


### BRAINATHON

[App page](https://appshunter.io/ios/app/brainathon/id6753861593)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MMC - SM - 01 - Garbhini Kalpane | $14.99 | one-time |


## Frequently asked questions

### Is NCERT KATBOOK free?

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

### Is BRAINATHON free?

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

### Do NCERT KATBOOK or BRAINATHON have ads?

Neither NCERT KATBOOK nor BRAINATHON shows ads.

### Which is updated more often, NCERT KATBOOK or BRAINATHON?

NCERT KATBOOK ships an update every 8 days, and BRAINATHON every 2 months. Most recently, NCERT KATBOOK was updated on March 25, 2026 and BRAINATHON on September 14, 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.*