# SimplexLP vs iPTE

The clearest difference is review sentiment: iPTE at 100% against SimplexLP's 67%. iPTE also leads on price ($1.99 vs $3.99). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

SimplexLP costs $3.99 and iPTE $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SimplexLP ships an update every 12 months, iPTE every 9 months. The most recent releases landed on September 28, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | SimplexLP | iPTE |
| --- | --- | --- |
| Price | $3.99 | **$1.99** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/simplexlp/id1114880223/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 9 months** |
| Monetization | Paid | Paid |
| Size | 4 MB | 98 MB |
| Requires iOS | 14.1 | **13.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Axel Besser](https://appshunter.io/developer/790706426) | [建锋 宋](https://appshunter.io/developer/1098794568) |

## 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


### iPTE

[App page](https://appshunter.io/ios/app/ipte/id1502419058)

Explore the periodic table with extensive data on chemical elements and over 5500 isotopes. Features include element images, electron configurations, discovery history, and a solubility chart. Ideal for students, teachers, and science enthusiasts.

**Highlights:** Extensive element data, Over 5500 isotopes, Solubility chart, Element images and electron configurations, Discovery history, Search functionality

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SimplexLP free?

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

### Is iPTE free?

iPTE costs $1.99, with no in-app purchases.

### Do SimplexLP or iPTE have ads?

Neither SimplexLP nor iPTE shows ads.

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

SimplexLP ships an update every 12 months, and iPTE every 9 months. Most recently, SimplexLP was updated on September 28, 2026 and iPTE on September 22, 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.*