Comparison

Mechanical Toolkit vs Fastener Pro

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

Head to head
About

Mechanical Toolkit

Features
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Introducing Mechanical Toolkit by Werder AG - Your Ultimate Mechanic's Companion! Unlock the power of Mechanical Toolkit, the indispensable toolkit designed for mechanics everywhere. Whether you're tackling ISO-Tolerances, mastering Threads, or optimizing Cutting Data, MechTab has you covered. Explore a wealth of features: Tolerances: From A to ZC, delve into precise measurements for holes, shafts, and beyond. General Tolerances: Access easy-to-read charts for linear, radii/chamfer, and angular dimensions. Geometrical Tolerances: Gain insights through symbols, drawings, and detailed explanations. Threads: Navigate various thread types effortlessly, including BA, BSF, G, and more. Cutting Data: Fine-tune cutting and spindle speeds, feed rates, and processing durations. Wrench-Size to Width across Corners: Instantly determine wrench sizes for cornered profiles. Roughness: Understand surface finishes with Rz, Ra, N values, and Triangle-Notation. Triangle: Simplify triangle calculations for sides, angles, and area with intuitive tools. Weight: Estimate material weights across different profiles, with the added convenience of editable lists. Trowalization: Calculate optimal machine load capacities for efficient processing. Experience Mechanical Toolkit and revolutionize your mechanical endeavors today!

About

Fastener Pro

Features
Read full description

Determine a safe and reliable fastener torque for your application. By selecting your bolt material spec, nut material spec, and set material specs from our comprehensive material database we will evaluate all possible failure modes of the bolt, nut, set material, and joint materials and provide a details stress analysis as well as the recommended torque. Additional features include determination of preload from torque, torque from preload, load analysis, and equivalent angle to turn fastener to achieve desired results. Disclaimer: Bolt torque and preload values are estimates only. Actual requirements depend on material, lubrication, standards, and installation conditions. Verify all values using official engineering documentation and calibrated tools. Developer assumes no liability for use of this information.

Screenshots

Mechanical Toolkit4 screens
Fastener Pro3 screens

Verdict

The call

The clearest difference is price: Mechanical Toolkit at Free against Fastener Pro's $14.99. Mechanical Toolkit also leads on iOS requirement (13.0 vs 15.1). Fastener Pro's advantage is in-app purchases (none vs 1) and update cadence (every 5 weeks vs every 20 months). On ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Mechanical Toolkit is free to download; Fastener Pro costs $14.99 up front. Mechanical Toolkit sells 1 one-off in-app purchase. Fastener Pro asks for nothing beyond the download.

UpkeepUpdate frequency

Mechanical Toolkit ships an update every 20 months, Fastener Pro every 5 weeks. The most recent releases landed on September 14, 2026 and December 9, 2025 respectively.

Scorecard4 real differences Β· 2 level
Mechanical Toolkit versus Fastener Pro: the parameters behind the verdict, then further details
ParameterMechanical ToolkitFastener Pro
PriceFree β€” better$14.99
Update frequencyEvery 20 monthsEvery 5 weeks β€” better
AdsNoNo
In-app purchasesYesNo β€” better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 β€” better15.1
Further details β€” not scored
Size49 MB30 MB
Age rating4+4+
DeveloperShital GorasiyaJeffrey Andrews

In-app purchases

1 purchases

Mechanical Toolkit

One-time1
  • Lifetime Purchase$4.99
None

Fastener Pro

No in-app purchases

Questions

Is Mechanical Toolkit free?
Mechanical Toolkit is free to download, with in-app purchases available.
Is Fastener Pro free?
Fastener Pro costs $14.99, with no in-app purchases.
Do Mechanical Toolkit or Fastener Pro have ads?
Neither Mechanical Toolkit nor Fastener Pro shows ads.
Which is updated more often, Mechanical Toolkit or Fastener Pro?
Mechanical Toolkit ships an update every 20 months, and Fastener Pro every 5 weeks. Most recently, Mechanical Toolkit was updated on September 14, 2026 and Fastener Pro on December 9, 2025.

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