# KTET MASTER vs Prism Foundation

The clearest difference is in-app purchases: Prism Foundation at none against KTET MASTER's 5. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. KTET MASTER sells 5 one-off in-app purchases. Prism Foundation asks for nothing beyond the download.

KTET MASTER ships an update every 4 months, Prism Foundation every 6 months. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | KTET MASTER | Prism Foundation |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 6 months |
| Size | 322 MB | 34 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mohammed Abdul Basith K](https://appshunter.io/developer/1793972791) | [Abdul Raheem Areekadan](https://appshunter.io/developer/1211874962) |

## What reviewers say

### KTET MASTER

[App page](https://appshunter.io/ios/app/ktet-master/id6742832481)

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| K TET 2 SOCIAL SCIENCE | $14.99 | one-time |
| K TET CATEGORY 1 MASTER CLASS | $14.99 | one-time |
| K TET CATEGORY 2 - SCIENCE | $14.99 | one-time |
| K TET 1 + 2 SOCIAL SCIENCE | $24.99 | one-time |
| K TET CATEGORY 1 + 2 SCIENCE | $24.99 | one-time |


### Prism Foundation

[App page](https://appshunter.io/ios/app/prism-foundation/id6754979618)

**In-app purchases:** none


## Frequently asked questions

### Is KTET MASTER free?

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

### Is Prism Foundation free?

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

### Do KTET MASTER or Prism Foundation have ads?

Neither KTET MASTER nor Prism Foundation shows ads.

### Which is updated more often, KTET MASTER or Prism Foundation?

KTET MASTER ships an update every 4 months, and Prism Foundation every 6 months. Most recently, KTET MASTER was updated on October 30, 2026 and Prism Foundation on October 25, 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.*