Comparison

Mechanical Engineering Toolkit vs Viam Robotics

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Mechanical Engineering Toolkit

This professional engineering calculator provides instant results for students, researchers, and practicing engineers. It offers detailed calculation steps, formulas, diagrams, and unit conversions. Save inputs as projects and export results in various formats.

Highlights
  • Engineering equations and formulas
  • Step-by-step calculation breakdowns
  • SI and Imperial unit conversions
  • Save and export results (text, image, CSV, PDF)
  • Offline functionality
  • Extensive library of engineering tools
Features
Read full description

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.

About

Viam Robotics

Control and connect to smart machines running on Viam directly from your mobile device. Manage your robotics projects remotely and efficiently.

Highlights
  • Connect to smart machines
  • Control smart machines
  • Mobile device control
  • Remote machine management
Features
Read full description

With this application you can connect to and control your smart machines running on Viam directly from your mobile device. By downloading this app, you agree to our Terms of Service and Privacy Policy. https://www.viam.com/terms https://www.viam.com/privacy [:mav: 1.13.0]

Screenshots

Mechanical Engineering Toolkit4 screens
Viam Robotics4 screens

Verdict

The call

The clearest difference is review sentiment: Viam Robotics at 100% against Mechanical Engineering Toolkit's 57%. Viam Robotics also leads on in-app purchases (none vs 1) and ads (none vs shown). Mechanical Engineering Toolkit's advantage is update cadence (every 5 days vs every 3 weeks) and ratings volume (64 vs 7). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Mechanical Engineering Toolkit sells 1 one-off in-app purchase. Viam Robotics asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Viam Robotics holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Mechanical Engineering Toolkit has 64 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 57% of Mechanical Engineering Toolkit's written reviews are positive against 100% of Viam Robotics's.

UpkeepUpdate frequency

Mechanical Engineering Toolkit ships an update every 5 days, Viam Robotics every 3 weeks. Both last shipped on November 3, 2026.

Scorecard9 real differences · 1 level
Mechanical Engineering Toolkit versus Viam Robotics: the parameters behind the verdict, then further details
ParameterMechanical Engineering ToolkitViam Robotics
PriceFreeFree
Rating4.8 (64 ratings)5.0 (7 ratings) — better
Positive reviews57.1% of reviews100.0% of reviews — better
Number of ratings64 — better7
Update frequencyEvery 5 days — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS15.0 — better17.6
Further details — not scored
Size47 MB65 MB
Age rating4+4+
DeveloperAPPS BAY LIMITEDViam, Inc.

Customer experience

Mechanical Engineering Toolkit

All ratings64 ratings
Positive95.3%
Neutral1.6%
Negative3.1%
Written reviews7 reviews
Positive57.1%
Neutral14.3%
Negative28.6%

Viam Robotics

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Mechanical Engineering Toolkit

One-time1
  • Remove Ads$2.99
None

Viam Robotics

No in-app purchases

Questions

Is Mechanical Engineering Toolkit free?
Mechanical Engineering Toolkit is free to download, with in-app purchases available.
Is Viam Robotics free?
Viam Robotics is free to download, with no in-app purchases.
Which has better reviews, Mechanical Engineering Toolkit or Viam Robotics?
Viam Robotics is rated higher. Mechanical Engineering Toolkit averages 4.8 out of 5 from 64 ratings, while Viam Robotics averages 5.0 from 7 ratings.
Do Mechanical Engineering Toolkit or Viam Robotics have ads?
Mechanical Engineering Toolkit shows ads; Viam Robotics does not.
Which is updated more often, Mechanical Engineering Toolkit or Viam Robotics?
Mechanical Engineering Toolkit ships an update every 5 days, and Viam Robotics every 3 weeks. Most recently, Mechanical Engineering Toolkit was updated on November 3, 2026 and Viam Robotics on November 3, 2026.

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