# LinearSolver vs Gear Design

The clearest difference is rating: LinearSolver at 3.0 against Gear Design's 1.5. LinearSolver also leads on device support (3 vs 1) and price ($1.99 vs $2.99). Gear Design's advantage is update cadence (every 12 months vs every 39 months) and iOS requirement (9.3 vs 12.0). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

LinearSolver costs $1.99 and Gear Design $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

LinearSolver holds the better App Store score, 3.0 against 1.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

LinearSolver ships an update every 39 months, Gear Design every 12 months. Both last shipped on September 22, 2026.

## The numbers

| Metric | LinearSolver | Gear Design |
| --- | --- | --- |
| Price | **$1.99** | $2.99 |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/linearsolver/id895469797/reviews)** | [1.5 (2 ratings)](https://appshunter.io/ios/app/gear-design/id1136191442/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 12 months** |
| Monetization | Paid | Paid |
| Size | 8 MB | 38 MB |
| Requires iOS | 12.0 | **9.3** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Gurzhiev](https://appshunter.io/developer/751489903) | [DRH YAZILIM VE MUHENDISLIK HIZMETLERI LTD STI](https://appshunter.io/developer/914295588) |

## What reviewers say

### 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


### Gear Design

[App page](https://appshunter.io/ios/app/gear-design/id1136191442)

Design involute gears with a CAD interface, allowing visual assessment through touch gestures. Generate and export STL data for 3D printing and perform tooth bending strength analysis with PDF sharing.

**Highlights:** Involute gear design, CAD interface, Touch gesture controls (zoom, rotate), STL data generation, Email export, Tooth bending strength analysis, PDF sharing

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

**In-app purchases:** none


## Frequently asked questions

### Is LinearSolver free?

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

### Is Gear Design free?

Gear Design costs $2.99, with no in-app purchases.

### Which has better reviews, LinearSolver or Gear Design?

LinearSolver is rated higher. LinearSolver averages 3.0 out of 5 from 1 ratings, while Gear Design averages 1.5 from 2 ratings.

### Do LinearSolver or Gear Design have ads?

Neither LinearSolver nor Gear Design shows ads.

### Which is updated more often, LinearSolver or Gear Design?

LinearSolver ships an update every 39 months, and Gear Design every 12 months. Most recently, LinearSolver was updated on September 22, 2026 and Gear Design 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.*