# 10deep vs DEC Opcodes

The clearest difference is monetization model: DEC Opcodes at free against 10deep's freemium. 10deep's advantage is iOS requirement (15.0 vs 18.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. 10deep sells 3 in-app purchases, starting at $0.99 per 7 days and DEC Opcodes sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for 10deep against 5.0 for DEC Opcodes. Both are backed by a comparable volume of ratings — 4 and 3 respectively.

10deep ships an update weekly, DEC Opcodes every 8 days. The most recent releases landed on August 8, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | 10deep | DEC Opcodes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/10deep-fall-down-rabbit-holes/id6759625714/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/dec-opcodes/id6760246055/reviews) |
| Number of ratings | **4** | 3 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 8 days |
| Monetization | Freemium | **Free** |
| Size | 63 MB | 42 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MASOFT LLC](https://appshunter.io/developer/1879884981) | [John Kennedy](https://appshunter.io/developer/284943103) |

## What reviewers say

### 10deep

[App page](https://appshunter.io/ios/app/10deep-fall-down-rabbit-holes/id6759625714)

Explore any topic with AI-guided discovery, going 10 levels deep into fascinating insights. Choose to go deeper, wander through tangents, or redirect with your own questions. Share your discoveries and compete on leaderboards.

**Highlights:** 10-level deep topic exploration, AI-powered guided discovery, Choice-driven exploration paths, Concise and fascinating insights, Shareable discovery trails, Community popular feed, Gamified exploration with Fathoms

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10deep Pro Weekly | $0.99 | per 7 days |
| 10deep Pro | $3.99 | per month |
| 10deep Pro | $24.99 | per year |


### DEC Opcodes

[App page](https://appshunter.io/ios/app/dec-opcodes/id6760246055)

Explore the instruction sets of legendary DEC computers like the PDP and VAX. This app provides detailed information on each instruction, historical context, and interactive lessons. Discover the machines that shaped modern computing.

**Highlights:** Instruction set reference, Historical context and photos, System specifications, Interactive assembly lessons, Search and filtering, Customizable themes, Simple assembler

**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 10deep free?

10deep is free to download, with in-app purchases available.

### Is DEC Opcodes free?

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

### Which has better reviews, 10deep or DEC Opcodes?

10deep and DEC Opcodes are both rated 5.0 out of 5 on the App Store, from 4 and 3 ratings respectively.

### Do 10deep or DEC Opcodes have ads?

Neither 10deep nor DEC Opcodes shows ads.

### Which is updated more often, 10deep or DEC Opcodes?

10deep ships an update weekly, and DEC Opcodes every 8 days. Most recently, 10deep was updated on August 8, 2026 and DEC Opcodes on September 20, 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.*