# Nuwa Basic vs Opcodes

The clearest difference is in-app purchases: Nuwa Basic at none against Opcodes's 1. Nuwa Basic also leads on device support (4 vs 2) and iOS requirement (14.0 vs 18.0). On price and ads there is nothing between them.

Both are free to download. Opcodes sells 1 one-off in-app purchase. Nuwa Basic asks for nothing beyond the download.

## The numbers

| Metric | Nuwa Basic | Opcodes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (6 ratings)](https://appshunter.io/ios/app/opcodes-retro-cpu-reference/id6760205834/reviews)** |
| Number of ratings | — | **6** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 8 days |
| Monetization | — | Free |
| Size | 47 MB | 58 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [光建 张](https://appshunter.io/developer/955099719) | [John Kennedy](https://appshunter.io/developer/284943103) |

## What reviewers say

### Nuwa Basic

[App page](https://appshunter.io/ios/app/nuwa-basic/id6740618863)

**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 Nuwa Basic free?

Nuwa Basic is free to download, with no in-app purchases.

### Is Opcodes free?

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

### Do Nuwa Basic or Opcodes have ads?

Neither Nuwa Basic nor Opcodes shows ads.

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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.*