# perli$ vs Opcodes

The clearest difference is price: Opcodes at Free against perli$'s $2.99. Opcodes also leads on update cadence (every 8 days vs every 19 months). perli$'s advantage is in-app purchases (none vs 1) and device support (4 vs 2). On rating, ratings volume and ads there is nothing between them.

Opcodes is free to download; perli$ costs $2.99 up front. Opcodes sells 1 one-off in-app purchase. perli$ asks for nothing beyond the download.

perli$ holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 3 and 6 respectively.

perli$ ships an update every 19 months, Opcodes every 8 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | perli$ | Opcodes |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/perli/id1111072459/reviews)** | [4.8 (6 ratings)](https://appshunter.io/ios/app/opcodes-retro-cpu-reference/id6760205834/reviews) |
| Number of ratings | 3 | **6** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 8 days** |
| Monetization | Paid | **Free** |
| Size | 78 MB | 58 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [小文 黄](https://appshunter.io/developer/490328393) | [John Kennedy](https://appshunter.io/developer/284943103) |

## What reviewers say

### perli$

[App page](https://appshunter.io/ios/app/perli/id1111072459)

Learn, run, and share Perl 5.22 scripts on iOS. Features include autocompletion, code coloring, a built-in browser for learning materials, and file system support for various document types. Customize your learning environment with background options and animations.

**Highlights:** Learn, run, and share Perl 5.22 scripts, Autocompletion and auto-indentation, Code coloring and templates, Built-in browser for learning materials, File system support for various document types, Customizable learning environment, Generate and share QR codes for scripts

**Features:** macOS Compatibility, Apple Watch app, 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 perli$ free?

perli$ costs $2.99, with no in-app purchases.

### Is Opcodes free?

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

### Which has better reviews, perli$ or Opcodes?

perli$ is rated higher. perli$ averages 5.0 out of 5 from 3 ratings, while Opcodes averages 4.8 from 6 ratings.

### Do perli$ or Opcodes have ads?

Neither perli$ nor Opcodes shows ads.

### Which is updated more often, perli$ or Opcodes?

perli$ ships an update every 19 months, and Opcodes every 8 days. Most recently, perli$ was updated on October 24, 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.*