# Simplex Nodal vs US Citizenship Test 2025 ・

The clearest difference is in-app purchases: Simplex Nodal at none against US Citizenship Test 2025 ・'s 3. Simplex Nodal also leads on ads (none vs shown) and device support (4 vs 2). US Citizenship Test 2025 ・'s advantage is update cadence (every 3 weeks vs every 4 months). On price and review sentiment there is nothing between them.

Both are free to download. US Citizenship Test 2025 ・ sells 3 in-app purchases, starting at $2.99 per 7 days. Simplex Nodal asks for nothing beyond the download.

Simplex Nodal ships an update every 4 months, US Citizenship Test 2025 ・ every 3 weeks. The most recent releases landed on November 1, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Simplex Nodal | US Citizenship Test 2025 ・ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (89 ratings)](https://appshunter.io/ios/app/us-citizenship-test-2025/id6742466452/reviews)** |
| Number of ratings | — | **89** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 14 MB | 27 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | +4 |
| Developer | [Simplex Nodal Limited](https://appshunter.io/developer/995736552) | [GETBOKS LLC](https://appshunter.io/developer/1653945082) |

## 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


### US Citizenship Test 2025 ・

[App page](https://appshunter.io/ios/app/us-citizenship-test-2025/id6742466452)

Prepare for the US Citizenship Test with up-to-date questions and interactive study tools. This app offers practice exams, quizzes, flashcards, and progress tracking to help you learn US history, government, and civic principles. Study anytime, anywhere with offline access.

**Highlights:** Practice with 2025 exam questions, Interactive quizzes, Audio features with pronunciation, Customizable learning modes, Progress tracking and analytics, Offline access to study materials

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Citizenship Tests | $2.99 | per 7 days |
| Premium Subscription | $2.99 | per 7 days |
| Premium Subscription | $19.99 | per year |


## Frequently asked questions

### Is Simplex Nodal free?

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

### Is US Citizenship Test 2025 ・ free?

US Citizenship Test 2025 ・ is free to download, with in-app purchases available.

### Do Simplex Nodal or US Citizenship Test 2025 ・ have ads?

US Citizenship Test 2025 ・ shows ads; Simplex Nodal does not.

### Which is updated more often, Simplex Nodal or US Citizenship Test 2025 ・?

Simplex Nodal ships an update every 4 months, and US Citizenship Test 2025 ・ every 3 weeks. Most recently, Simplex Nodal was updated on November 1, 2026 and US Citizenship Test 2025 ・ on November 8, 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.*