# Kayool vs D4 Plus

The clearest difference is in-app purchases: D4 Plus at none against Kayool's 9. D4 Plus also leads on iOS requirement (12.0 vs 15.6). Kayool's advantage is update cadence (every 6 weeks vs every 4 months). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. Kayool sells 9 one-off in-app purchases. D4 Plus asks for nothing beyond the download.

Kayool ships an update every 6 weeks, D4 Plus every 4 months. The most recent releases landed on June 5, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Kayool | D4 Plus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/kayool/id1558323549/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Monetization | Free | Free |
| Size | 84 MB | 49 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KAYOOL TECHNOLOGIES PRIVATE LIMITED](https://appshunter.io/developer/1558323551) | [D4DX Innovations LLP](https://appshunter.io/developer/1815903872) |

## What reviewers say

### Kayool

[App page](https://appshunter.io/ios/app/kayool/id1558323549)

This platform empowers educators to build and manage virtual classrooms, facilitating seamless communication and content sharing with students. It supports live streaming for interactive lessons and offers direct messaging for personalized feedback.

**Highlights:** Create multiple virtual classrooms, Student subscription to classes, Direct messaging between teachers and students, Note sharing capabilities, Live audio and video streaming for classes

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kayool Course Fee | $0.99 | one-time |
| Kayool Course Fee | $1.99 | one-time |
| Kayool Course fee | $3.99 | one-time |
| Kayool Course fee | $4.99 | one-time |
| Plus One Mathematics Tuition | $5.99 | one-time |
| Tuition Plus two Mathematics | $5.99 | one-time |
| Kayool Course fee | $6.99 | one-time |
| Kayool Course fee | $7.99 | one-time |
| Kayool Course Fee | $48.99 | one-time |


### D4 Plus

[App page](https://appshunter.io/ios/app/d4-plus/id1633435562)

Access a wide range of spiritual content including videos, audio, books, and live programs. This platform offers quality speeches, songs, and documentaries for a better digital experience.

**Highlights:** Spiritual video content, Audio programs, Digital books, Live programs, Documentaries, Children's videos

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Kayool free?

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

### Is D4 Plus free?

D4 Plus is free to download, with no in-app purchases.

### Do Kayool or D4 Plus have ads?

Neither Kayool nor D4 Plus shows ads.

### Which is updated more often, Kayool or D4 Plus?

Kayool ships an update every 6 weeks, and D4 Plus every 4 months. Most recently, Kayool was updated on June 5, 2026 and D4 Plus on September 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.*