# Oracle Java SE 21 Developer vs PassRun Programming Technician

The clearest difference is in-app purchases: PassRun Programming Technician at none against Oracle Java SE 21 Developer's 1. Oracle Java SE 21 Developer's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Oracle Java SE 21 Developer sells 1 one-off in-app purchase. PassRun Programming Technician asks for nothing beyond the download.

Oracle Java SE 21 Developer ships an update weekly, PassRun Programming Technician every 9 days. The most recent releases landed on October 9, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Oracle Java SE 21 Developer | PassRun Programming Technician |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 9 days |
| Size | 209 MB | 64 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CHOI SEONGMIN](https://appshunter.io/developer/6772332527) | [hyuncheol seo](https://appshunter.io/developer/6797554122) |

## What reviewers say

### Oracle Java SE 21 Developer

[App page](https://appshunter.io/ios/app/oracle-java-se-21-developer/id6785110070)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Access | $4.99 | one-time |


### PassRun Programming Technician

[App page](https://appshunter.io/ios/app/passrun-programming-technician/id6803775320)

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

**In-app purchases:** none


## Frequently asked questions

### Is Oracle Java SE 21 Developer free?

Oracle Java SE 21 Developer is free to download, with in-app purchases available.

### Is PassRun Programming Technician free?

PassRun Programming Technician is free to download, with no in-app purchases.

### Do Oracle Java SE 21 Developer or PassRun Programming Technician have ads?

PassRun Programming Technician shows ads; Oracle Java SE 21 Developer does not.

### Which is updated more often, Oracle Java SE 21 Developer or PassRun Programming Technician?

Oracle Java SE 21 Developer ships an update weekly, and PassRun Programming Technician every 9 days. Most recently, Oracle Java SE 21 Developer was updated on October 9, 2026 and PassRun Programming Technician on October 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.*