# P'jet Physics vs Vonder X

The clearest difference is in-app purchases: Vonder X at none against P'jet Physics's 2. Vonder X also leads on iOS requirement (11.0 vs 13.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. P'jet Physics sells 2 one-off in-app purchases. Vonder X asks for nothing beyond the download.

P'jet Physics ships an update every 4 months, Vonder X every 3 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | P'jet Physics | Vonder X |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | — | Free |
| Size | 79 MB | 19 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Phanupong Sanmee](https://appshunter.io/developer/1435296424) | [VONDER (THAILAND) COMPANY LIMITED](https://appshunter.io/developer/1246628604) |

## What reviewers say

### P'jet Physics

[App page](https://appshunter.io/ios/app/pjet-physics/id1517073998)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| คอร์สเรียนประจำเทอม | $99.99 | one-time |
| คอร์สสอบเข้ามหาวิทยาลัย | $199.99 | one-time |


### Vonder X

[App page](https://appshunter.io/ios/app/vonder-x/id1563389476)

This app offers a gamified learning experience with bite-sized content across various subjects. Engage in challenges, practice with micro-learning games, and improve your knowledge in a fun and interactive way.

**Highlights:** Gamified learning challenges, Bite-sized content, Interactive micro-learning games, Progress tracking, Regularly updated lessons, Guest access option

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is P'jet Physics free?

P'jet Physics is free to download, with in-app purchases available.

### Is Vonder X free?

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

### Do P'jet Physics or Vonder X have ads?

Neither P'jet Physics nor Vonder X shows ads.

### Which is updated more often, P'jet Physics or Vonder X?

P'jet Physics ships an update every 4 months, and Vonder X every 3 months. Most recently, P'jet Physics was updated on November 3, 2026 and Vonder X on November 3, 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.*