# iSolveModel vs LinearSolver

The clearest difference is review sentiment: iSolveModel at 71% against LinearSolver's 0%. iSolveModel also leads on rating (5.0 vs 3.0) and update cadence (every 4 months vs every 39 months). LinearSolver's advantage is price ($1.99 vs $9.99) and iOS requirement (12.0 vs 17.1). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

iSolveModel costs $9.99 and LinearSolver $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

iSolveModel holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 71% of iSolveModel's written reviews are positive against 0% of LinearSolver's.

iSolveModel ships an update every 4 months, LinearSolver every 39 months. The most recent releases landed on September 12, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | iSolveModel | LinearSolver |
| --- | --- | --- |
| Price | $9.99 | **$1.99** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/isolvemodel/id387627473/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/linearsolver/id895469797/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | **71.4% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 39 months |
| Monetization | Paid | Paid |
| Size | 5 MB | 8 MB |
| Requires iOS | 17.1 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [MINDTech](https://appshunter.io/developer/382887010) | [Alexander Gurzhiev](https://appshunter.io/developer/751489903) |

## What reviewers say

### iSolveModel

[App page](https://appshunter.io/ios/app/isolvemodel/id387627473)

This app offers a powerful linear programming solver for iOS devices, utilizing the simplex algorithm and an integrated MIP solver for integer variables. It's designed for students and professionals in operations research and related fields, allowing easy model creation and sharing.

**Highlights:** Linear programming solver, Simplex algorithm, Integrated MIP solver, Sensitivity analysis, iTunes File Sharing, Email model/solution transfer, Text-based model documents

**Features:** macOS Compatibility

**In-app purchases:** none


### LinearSolver

[App page](https://appshunter.io/ios/app/linearsolver/id895469797)

Solve systems of linear equations with multiple variables using two distinct methods. Input your equations, select a solving technique, and view detailed step-by-step solutions. Ideal for students and professionals needing quick and accurate calculations.

**Highlights:** Solves systems of linear equations, Supports n variables, Gaussian elimination method, Cramer's rule method, Detailed solution steps, User-friendly input interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iSolveModel free?

iSolveModel costs $9.99, with no in-app purchases.

### Is LinearSolver free?

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

### Which has better reviews, iSolveModel or LinearSolver?

iSolveModel is rated higher. iSolveModel averages 5.0 out of 5 from 2 ratings, while LinearSolver averages 3.0 from 1 ratings.

### Do iSolveModel or LinearSolver have ads?

Neither iSolveModel nor LinearSolver shows ads.

### Which is updated more often, iSolveModel or LinearSolver?

iSolveModel ships an update every 4 months, and LinearSolver every 39 months. Most recently, iSolveModel was updated on September 12, 2026 and LinearSolver 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.*