# Simplex Nodal vs Memory Games ・ Brain Training

The clearest difference is in-app purchases: Simplex Nodal at none against Memory Games ・ Brain Training's 2. Simplex Nodal also leads on device support (4 vs 2) and iOS requirement (9.0 vs 12.0). Memory Games ・ Brain Training's advantage is update cadence (monthly vs every 4 months). On price and ads there is nothing between them.

Both are free to download. Memory Games ・ Brain Training sells 2 in-app purchases, starting at $3.99 per 7 days. Simplex Nodal asks for nothing beyond the download.

Simplex Nodal ships an update every 4 months, Memory Games ・ Brain Training monthly. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Simplex Nodal | Memory Games ・ Brain Training |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | Free | — |
| Size | 14 MB | 215 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Simplex Nodal Limited](https://appshunter.io/developer/995736552) | [Conlan Limited](https://appshunter.io/developer/1663862039) |

## What reviewers say

### Simplex Nodal

[App page](https://appshunter.io/ios/app/simplex-nodal/id995736553)

Explore electricity markets by building and solving your own models. This app visually demonstrates complex concepts like locational marginal pricing, line losses, and the simplex algorithm. Learn through interactive examples and detailed step-by-step operations.

**Highlights:** Build and solve electricity market models, Visualize simplex algorithm workings, Explore locational marginal pricing, Understand line losses and binding constraints, Step-by-step simplex iteration details, Export simplex tableaux as CSV, Includes sample market models

**In-app purchases:** none


### Memory Games ・ Brain Training

[App page](https://appshunter.io/ios/app/memory-games-brain-training/id6468989585)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Memory Games - 1 Week | $3.99 | per 7 days |
| Memory Games - 1 Year | $39.99 | per year |


## Frequently asked questions

### Is Simplex Nodal free?

Simplex Nodal is free to download, with no in-app purchases.

### Is Memory Games ・ Brain Training free?

Memory Games ・ Brain Training is free to download, with in-app purchases available.

### Do Simplex Nodal or Memory Games ・ Brain Training have ads?

Neither Simplex Nodal nor Memory Games ・ Brain Training shows ads.

### Which is updated more often, Simplex Nodal or Memory Games ・ Brain Training?

Simplex Nodal ships an update every 4 months, and Memory Games ・ Brain Training monthly. Most recently, Simplex Nodal was updated on November 1, 2026 and Memory Games ・ Brain Training on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*