PIX Drive Design vs Mechanical Engineering Toolkit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PIX Drive Design
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PIX Drive Design App is the latest edition of drive calculation utility, aimed at enhancing the user experience when designing Belt Drives. Functional Components: Four separate functional components enable user convenience in meeting their following design objectives: 1. Two-Pulley Drive calculation 2. Multi-Pulley Drive calculation 3. Drive set-up configuration 4. ODS (Optimal Drive selector) There are several other enhancements to expand the overall effectiveness of the software in terms of functionality, speed, and range of solutions. Product Characteristics filter: Before calculating new drive parameters, the software now allows the user to narrow down and identify the most application-specific Belt in terms of the desired Belt attributes such as Power Rating, Operating Temperature, Dynamic Elongation Resistance, Resistance to Shock Load. Two Pulley Drive design: The user can select the optimum pulley based on shaft diameter or select standard pulley range to do the quick belt design calculation. Multi-Pulley Drive design capability: The user can now design Drives comprising of multiple pulleys with this new utility by specifying the drive layout with pulley coordinates along with other technical inputs such as 'span length', 'arc of contact', 'direction of pulley rotation', etc. The resulting Drive layout is mapped and displayed with critical Drive details allowing the user to visually verify the Drive aspects. Drive set-up parameters: Drive setup data such as tensioning values, drive centre distance, Belt pitch length, among others, could now be obtained at just the press of a button. The “Optimal drive selector” design to demonstrate the benefits of more advance product offered by PIX, offering user defined compelling argument for cost of ownership visa-a-vis the cost of procurement. The Drive design generates a detailed report to help you select the right belt for your machine. You can design the drive for all major belt types like V-Belt, Poly-V Belts & Timing Belts. We have made improvements to our Drive Design Calculator 5.0, along with other general updates. The Drive Design updates enhance the functionality and usability of the drive design calculator, making it more efficient and effective for users in designing and selecting appropriate belt selection for their applications.
Mechanical Engineering Toolkit
This utility app provides a comprehensive collection of engineering equations and formulas for students and professionals. Easily perform calculations by selecting a formula and inputting variables, with detailed instructions and reference material included.
- Engineering equations and formulas
- Mechanics of Material calculations
- Theory of Elasticity formulas
- Composite Material properties
- Reference material
- Variable input for calculations
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Mechanical Engineering Toolkit is a professional engineering calculator for students, researchers, and practicing engineers. Choose a formula, enter your variables, and get instant results — with calculation steps, formulas, diagrams, and unit conversions shown along the way. Switch between SI and Imperial units anytime, save favorites, and find the right tool fast with recommendations by major. Save your inputs as named projects, and export any result as text, image, CSV or PDF. Categories and tools: Mechanics of Material • Moments of inertia of plane areas • Force-displacement relation of a bar • Torsion formula and angle of twist • Flexure formula of a beam • Transverse shear stress • Deflections and slopes of cantilever and simple beams • Plane stress transformation and Mohr's circle • Principal stresses and planes • Spherical shell and thin-walled pressure vessel stresses • Buckling load of a column • Thermal deformation and stress • Combined loading • Bolted / riveted joints • Fatigue safety factor • Shaft power and torque Statics • Centroid of an area • Resultant of a force system • Beam reactions • 2D truss analysis Machine Design • Helical compression springs • Spur gear geometry and stresses • Shaft fatigue design (DE-Goodman) • Bearing L10 life • Belt and chain drives • Bolt preload / torque-tension • Fillet weld strength • Press / shrink-fit interference • Shaft critical speed (Dunkerley) • Beam natural frequency (five end conditions) • Torsional natural frequency (one or two rotors) Fluids & Thermal • Reynolds number and flow regime • Pipe pressure drop (Darcy-Weisbach with Colebrook) • Pump and fan power • Composite wall conduction • Fin efficiency • Heat exchanger sizing by LMTD Theory of Elasticity • Constitutive relation of linear elastic material • Stress/strain of linear elastic material Composite Material • Lamina and laminate stress/strain • Lamina engineering constants • Laminate plane and 3D properties • Rule of mixtures • Failure criteria (Tsai-Hill, Tsai-Wu) Reference Tables • Drill & tap chart (metric and imperial thread series) • ISO 286 fits & tolerances • Standard sections (AISC W, IPE, HEB) • Unit converter No account required. Works offline. Available in English, Chinese, German, French, and Japanese.
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Verdict
The clearest difference is in-app purchases: PIX Drive Design at none against Mechanical Engineering Toolkit's 1. PIX Drive Design also leads on ads (none vs shown). Mechanical Engineering Toolkit's advantage is update cadence (every 8 days vs every 6 weeks). On price, device support and iOS requirement 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
Both are free to download. Mechanical Engineering Toolkit sells 1 one-off in-app purchase. PIX Drive Design asks for nothing beyond the download.
PIX Drive Design ships an update every 6 weeks, Mechanical Engineering Toolkit every 8 days. The most recent releases landed on June 1, 2026 and September 24, 2026 respectively.
| Parameter | PIX Drive Design | Mechanical Engineering Toolkit |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.8 (64 ratings) — better |
| Positive reviews | — | 57.1% of reviews |
| Number of ratings | — | 64 — better |
| Update frequency | Every 6 weeks | Every 8 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 14.2 — better | 15.0 |
| Further details — not scored | ||
| Size | 1 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | PIX Transmissions Ltd. | APPS BAY LIMITED |
In-app purchases
PIX Drive Design
No in-app purchases
Mechanical Engineering Toolkit
- Remove Ads$2.99
Questions
Is PIX Drive Design free?
Is Mechanical Engineering Toolkit free?
Do PIX Drive Design or Mechanical Engineering Toolkit have ads?
Which is updated more often, PIX Drive Design or Mechanical Engineering Toolkit?
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