Simplex Nodal vs Memory Games ・ Brain Training
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simplex Nodal
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.
- 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
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In conjunction with the tutorial document, available at www.simplexnodal.com, use the app to learn about electricity markets by graphically building and solving your own electricity market models. The tutorial also describes the simplex algorithm that solves the model and the app lets you see the internal workings of the algorithm. Demonstrates nodal electricity markets features such as: locational marginal pricing, line losses, parallel flows, binding constraints, price separation, the spring washer effect, negative prices, risk and reserves, ramp-rates, congestion charges, transmission rentals, multiple electrical islands, HVDC branches, HVDC risk, HVDC risk subtractor, HVDC reserve sharing, and more. See www.simplexnodal.com for more screenshots and the tutorial document. Highlights: • The tutorial explains nodal electricity markets and the simplex algorithm via worked examples using the app • Start with small models to learn the basic concepts of the electricity market model the simplex algorithm • Learn how to explain prices by relaxing constraints to determine shadow prices • Enable/disable electricity market features to focus on individual effects, e.g., risk and reserve is easier to explain with line losses disabled • View full details of the simplex modelling including basic and non-basic variables, constraints, shadow prices, and details of the simplex iterations • Learn how the simplex algorithm works by viewing the step by step simplex operations that solve the electricity market model. View iteration details in the app and/or export the simplex tableaux as a csv file • The app implements its own simplex algorithm but you can also export the model in GAMS format to solve externally if you have access to the GAMS solver • Includes sample models that represent sections of an actual electricity market iPhone and iPad functionality is the same. Zoom and scroll allow the iPhone to access iPad sized models.
Memory Games ・ Brain Training
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Meet Memory Games: Brain Training — the ultimate mobile app to boost your mental prowess and have fun while doing it! With a variety of engaging and user-friendly games, this app is designed to enhance your memory, focus, logic, and overall brain performance. Look, what’s inside: • Memory Mirror: where you'll need to remember the location of objects and match them correctly. • Math Enigma: challenges you with a range of math problems that will keep your brain sharp and agile. • Color Match: invites you to a vibrant world of colors where you’ll have lots of fun by matching them. • Attention: tests your focus and attention by asking you to find the shape that doesn't quite fit with the others. But the benefits of brain training games go beyond entertainment. Research has shown that regular mental exercise through brain games can have a positive impact on mental health. By engaging in these games, you can: • Stimulate mental activity • Improve focus and attention • Keep your brain sharp • Enhance logic and cognitive functions • A great way to pass the time • A fun and stimulating experience for people of all ages! So, whether you're looking to challenge yourself, boost your brainpower, or simply enjoy some addictive gameplay, Memory Games: Brain Training is your perfect companion. Download now and embark on an exciting journey to unlock your full mental potential! Privacy Policy: https://brain-training.app/pp Terms of Use: https://brain-training.app/tou Support: support@brain-training.app
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Simplex Nodal | Memory Games ・ Brain Training |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 4 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPod |
| Requires iOS | 9.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 14 MB | 215 MB |
| Age rating | 4+ | 4+ |
| Developer | Simplex Nodal Limited | Conlan Limited |
In-app purchases
Simplex Nodal
No in-app purchases
Memory Games ・ Brain Training
- Memory Games - 1 Week3 Days trial$3.997 Days
- Memory Games - 1 Year$39.991 Year
Questions
Is Simplex Nodal free?
Is Memory Games ・ Brain Training free?
Do Simplex Nodal or Memory Games ・ Brain Training have ads?
Which is updated more often, Simplex Nodal or Memory Games ・ Brain Training?
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