# SimplexLP vs Astable

The clearest difference is update cadence: Astable at every 2 weeks against SimplexLP's every 12 months. Astable also leads on iOS requirement (12.0 vs 14.1). SimplexLP's advantage is review sentiment (67% vs 50%) and price ($3.99 vs $4.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

SimplexLP costs $3.99 and Astable $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SimplexLP ships an update every 12 months, Astable every 2 weeks. The most recent releases landed on September 28, 2026 and July 8, 2026 respectively.

## The numbers

| Metric | SimplexLP | Astable |
| --- | --- | --- |
| Price | **$3.99** | $4.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/simplexlp/id1114880223/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **66.7% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 2 weeks** |
| Monetization | Paid | Paid |
| Size | 4 MB | 35 MB |
| Requires iOS | 14.1 | **12.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Axel Besser](https://appshunter.io/developer/790706426) | [家豪 鲁](https://appshunter.io/developer/1665801193) |

## What reviewers say

### SimplexLP

[App page](https://appshunter.io/ios/app/simplexlp/id1114880223)

This app simplifies linear optimization problems with an objective function and constraints. It offers a graphical representation for problems with two variables, making it an ideal learning tool for students and teachers of the Simplex algorithm.

**Highlights:** Solves maximization and minimization problems, Handles unlimited variables and constraints, Supports ≤, ≥, and = inequalities, Provides graphical representation for 2-variable problems, Outputs calculations in fractions or decimals, Offers accurate calculations with fractions

**Features:** macOS Compatibility

**In-app purchases:** none


### Astable

[App page](https://appshunter.io/ios/app/astable-structural-mechanics/id1665840344)

This application provides a powerful structural mechanics solver with a graphic editor, code editor, and workspace. It allows for detailed mechanics parameter settings and offers a rich theme color scheme, making it ideal for large screen devices.

**Highlights:** Graphic editor, Code editor, Workspace, Mechanics parameter settings, Rich theme color scheme, Large screen device optimized

**In-app purchases:** none


## Frequently asked questions

### Is SimplexLP free?

SimplexLP costs $3.99, with no in-app purchases.

### Is Astable free?

Astable costs $4.99, with no in-app purchases.

### Do SimplexLP or Astable have ads?

Neither SimplexLP nor Astable shows ads.

### Which is updated more often, SimplexLP or Astable?

SimplexLP ships an update every 12 months, and Astable every 2 weeks. Most recently, SimplexLP was updated on September 28, 2026 and Astable on July 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.*