# Geometry vs Opcodes

The clearest difference is rating: Opcodes at 4.8 against Geometry's 2.8. Opcodes also leads on update cadence (every 8 days vs every 4 months) and monetization model (free vs free with in-app purchases). Geometry's advantage is iOS requirement (4.3 vs 18.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Geometry sells 1 one-off in-app purchase and Opcodes sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Opcodes holds the better App Store score, 4.8 against 2.8. Both are backed by a comparable volume of ratings — 10 and 6 respectively.

Geometry ships an update every 4 months, Opcodes every 8 days. The most recent releases landed on September 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Geometry | Opcodes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (10 ratings)](https://appshunter.io/ios/app/geometry-constructions-tutor-lite/id658504973/reviews) | **[4.8 (6 ratings)](https://appshunter.io/ios/app/opcodes-retro-cpu-reference/id6760205834/reviews)** |
| Number of ratings | **10** | 6 |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 8 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 25 MB | 58 MB |
| Requires iOS | **4.3** | 18.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Bytes Arithmetic LLC](https://appshunter.io/developer/700977509) | [John Kennedy](https://appshunter.io/developer/284943103) |

## What reviewers say

### Geometry

[App page](https://appshunter.io/ios/app/geometry-constructions-tutor-lite/id658504973)

Learn geometric constructions using digital tools like a compass and straightedge. Practice by creating constructions and receive instant feedback. Master concepts with animated demonstrations and intuitive controls.

**Highlights:** Animated construction demonstrations, Interactive practice mode, Automatic construction checking, Smart object snapping, Single touch compass, Pinch-to-zoom functionality, Undo and restart options

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Constructions | $2.99 | one-time |


### 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 Geometry free?

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

### Is Opcodes free?

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

### Which has better reviews, Geometry or Opcodes?

Opcodes is rated higher. Geometry averages 2.8 out of 5 from 10 ratings, while Opcodes averages 4.8 from 6 ratings.

### Do Geometry or Opcodes have ads?

Neither Geometry nor Opcodes shows ads.

### Which is updated more often, Geometry or Opcodes?

Geometry ships an update every 4 months, and Opcodes every 8 days. Most recently, Geometry was updated on September 24, 2026 and Opcodes on October 7, 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.*