LinearSolver vs Gear Design
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LinearSolver
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.
- Solves systems of linear equations
- Supports n variables
- Gaussian elimination method
- Cramer's rule method
- Detailed solution steps
- User-friendly input interface
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LinearSolver is an app that designed to solve systems of linear equations with n variables. You enter equations in the field, then choose solving method and press a button «Solve». Then program solves your linear system. There are two methods for solving: Gaussian elimination and Cramer's rule. For more intelligibility enable the «detailed solution».
Gear Design
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.
- Involute gear design
- CAD interface
- Touch gesture controls (zoom, rotate)
- STL data generation
- Email export
- Tooth bending strength analysis
- PDF sharing
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Gear Design is great in designing involute gears from scratch. Application includes a CAD interface in front end where users can assess designed gears visually with their finger gestures (zoom, rotate, twist etc.). Users can easily generate STL data of the CAD model and export them via Email (Two step action: first generate data and then export via Email). Tooth bending strength analysis calculator is included with multiple sharing options, including a pdf file.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | LinearSolver | Gear Design |
|---|---|---|
| Price | $1.99 — better | $2.99 |
| Rating | 3.0 (1 ratings) — better | 1.5 (2 ratings) |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 39 months | Every 12 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 12.0 | 9.3 — better |
| Further details — not scored | ||
| Size | 8 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexander Gurzhiev | DRH YAZILIM VE MUHENDISLIK HIZMETLERI LTD STI |
Customer experience
LinearSolver
Gear Design
In-app purchases
LinearSolver
No in-app purchases
Gear Design
No in-app purchases
Questions
Is LinearSolver free?
Is Gear Design free?
Which has better reviews, LinearSolver or Gear Design?
Do LinearSolver or Gear Design have ads?
Which is updated more often, LinearSolver or Gear Design?
Other comparisons
