# Learn Three.js Offline vs Opcodes

The clearest difference is price: Opcodes at Free against Learn Three.js Offline's $1.99. Opcodes also leads on rating (4.8 vs 1.0) and update cadence (every 8 days vs every 35 months). Learn Three.js Offline's advantage is in-app purchases (none vs 1) and iOS requirement (13.0 vs 18.0). On ads and device support there is nothing between them.

Opcodes is free to download; Learn Three.js Offline costs $1.99 up front. Opcodes sells 1 one-off in-app purchase. Learn Three.js Offline asks for nothing beyond the download.

Opcodes holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Opcodes has 6 ratings behind it against 1, so its average is the more settled of the two.

Learn Three.js Offline ships an update every 35 months, Opcodes every 8 days. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Learn Three.js Offline | Opcodes |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/learn-threejs-offline/id6466240926/reviews) | **[4.8 (6 ratings)](https://appshunter.io/ios/app/opcodes-retro-cpu-reference/id6760205834/reviews)** |
| Number of ratings | 1 | **6** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 35 months | **Every 8 days** |
| Monetization | Paid | **Free** |
| Size | 38 MB | 58 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Muhammad Mubeen](https://appshunter.io/developer/1553722821) | [John Kennedy](https://appshunter.io/developer/284943103) |

## What reviewers say

### Learn Three.js Offline

[App page](https://appshunter.io/ios/app/learn-threejs-offline/id6466240926)

Master 3D graphics and interactive web development with comprehensive tutorials and interactive demos. Learn Three.js from scratch, access code snippets, and explore rich content to build stunning visualizations on your mobile device.

**Highlights:** Learn Three.js from scratch, Interactive 3D demos, In-depth articles and video tutorials, Code snippets and templates, Offline learning capabilities

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

**In-app purchases:** none


### Opcodes

[App page](https://appshunter.io/ios/app/opcodes-retro-cpu-reference/id6760205834)

This app provides a comprehensive reference for retro CPU opcodes, including detailed descriptions, assembly examples, and historical context. It covers eighteen iconic processors and offers features like search, sorting, and filtering for easy exploration of historical computing information.

**Highlights:** Opcode reference for 18 iconic processors, Detailed instruction descriptions, Hex, octal, decimal values, Flags affected, addressing modes, cycle counts, Assembly code examples, CPU history and pinout diagrams, Simple assembler/disassembler

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy Me a Coffee | $0.99 | one-time |


## Frequently asked questions

### Is Learn Three.js Offline free?

Learn Three.js Offline costs $1.99, with no in-app purchases.

### Is Opcodes free?

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

### Which has better reviews, Learn Three.js Offline or Opcodes?

Opcodes is rated higher. Learn Three.js Offline averages 1.0 out of 5 from 1 ratings, while Opcodes averages 4.8 from 6 ratings.

### Do Learn Three.js Offline or Opcodes have ads?

Neither Learn Three.js Offline nor Opcodes shows ads.

### Which is updated more often, Learn Three.js Offline or Opcodes?

Learn Three.js Offline ships an update every 35 months, and Opcodes every 8 days. Most recently, Learn Three.js Offline was updated on October 30, 2026 and Opcodes on October 24, 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.*