# CPU8 Plus vs Lymphedema Exam by Rocket Prep

The clearest difference is in-app purchases: CPU8 Plus at none against Lymphedema Exam by Rocket Prep's 6. CPU8 Plus also leads on iOS requirement (12.4 vs 15.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Lymphedema Exam by Rocket Prep sells 6 in-app purchases, starting at $7.99 per 7 days. CPU8 Plus asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 10, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | CPU8 Plus | Lymphedema Exam by Rocket Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/cpu8-plus/id1518324298/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | — |
| Size | 160 MB | 42 MB |
| Requires iOS | **12.4** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Cordova Bay Entertainment Group, Inc](https://appshunter.io/developer/1448776027) | [Darya Pyzhyk](https://appshunter.io/developer/1799009188) |

## What reviewers say

### CPU8 Plus

[App page](https://appshunter.io/ios/app/cpu8-plus/id1518324298)

This app simulates an 8-bit computer, teaching users about internal computer workings. It features an expanded memory space compared to its predecessor, allowing for more complex programs and a deeper understanding of computer architecture.

**Highlights:** Simulates 8-bit computer architecture, Expanded addressable memory (256 bytes), Simple 16-instruction set, Source code compatibility with CPU8, Hexadecimal progress displays, Detailed memory display

**In-app purchases:** none


### Lymphedema Exam by Rocket Prep

[App page](https://appshunter.io/ios/app/lymphedema-exam-by-rocket-prep/id6762360949)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lymph Weekly Full Access | $7.99 | per 7 days |
| Lymph Monthly Full Access | $17.99 | per month |
| Lymph Monthly Full Access | $17.99 | per month |
| Lymph_mock_tries_1 | $4.99 | one-time |
| Lymph_mock_tries_3 | $9.99 | one-time |
| Lymph_mock_tries_5 | $14.99 | one-time |


## Frequently asked questions

### Is CPU8 Plus free?

CPU8 Plus is free to download, with no in-app purchases.

### Is Lymphedema Exam by Rocket Prep free?

Lymphedema Exam by Rocket Prep is free to download, with in-app purchases available.

### Do CPU8 Plus or Lymphedema Exam by Rocket Prep have ads?

Neither CPU8 Plus nor Lymphedema Exam by Rocket Prep shows ads.

### Which is updated more often, CPU8 Plus or Lymphedema Exam by Rocket Prep?

CPU8 Plus ships an update every 3 months, and Lymphedema Exam by Rocket Prep every 3 months. Most recently, CPU8 Plus was updated on October 10, 2026 and Lymphedema Exam by Rocket Prep on October 18, 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.*