# OpenCodeM vs Java Compiler

The clearest difference is in-app purchases: OpenCodeM at none against Java Compiler's 3. OpenCodeM also leads on update cadence (weekly vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

OpenCodeM costs $0.99 and Java Compiler $0.99 up front. Java Compiler sells 3 in-app purchases, starting at $14.99 per month. OpenCodeM asks for nothing beyond the download.

OpenCodeM ships an update weekly, Java Compiler every 3 months. Both last shipped on October 31, 2026.

## The numbers

| Metric | OpenCodeM | Java Compiler |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 months |
| Monetization | Paid | — |
| Size | 6 MB | 5 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CometDust Technology (Guangzhou) Co., Ltd](https://appshunter.io/developer/1763733479) | [乐祥 胡](https://appshunter.io/developer/1572365721) |

## What reviewers say

### OpenCodeM

[App page](https://appshunter.io/ios/app/opencodem/id6764783164)

This app provides a native mobile interface to manage and monitor your remote AI coding agent instances. Stay updated on task completion and session status from anywhere, without needing to keep a terminal open.

**Highlights:** Instance management for multiple connections, Built-in WebView terminal, Live Activity and Dynamic Island support, Background notifications for task completion, Real-time session status monitoring, iCloud sync for instances and credentials, Home screen widget for at-a-glance status

**In-app purchases:** none


### Java Compiler

[App page](https://appshunter.io/ios/app/java-compiler-ai-assistant/id6776635648)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30天会员 | $14.99 | per month |
| 360天会员 | $59.99 | per year |
| 终身会员 | $79.99 | one-time |


## Frequently asked questions

### Is OpenCodeM free?

OpenCodeM costs $0.99, with no in-app purchases.

### Is Java Compiler free?

Java Compiler costs $0.99, and also offers in-app purchases.

### Do OpenCodeM or Java Compiler have ads?

Neither OpenCodeM nor Java Compiler shows ads.

### Which is updated more often, OpenCodeM or Java Compiler?

OpenCodeM ships an update weekly, and Java Compiler every 3 months. Most recently, OpenCodeM was updated on October 31, 2026 and Java Compiler on October 31, 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.*