Comparison

Screw vs Strainlabs Bolts

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

Head to head
About

Screw

Features
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The most easiest mobile calculation of tightening and loading of screw joints for reliable engineering of screw joints. The App is based on worldwide approach of guideline VDI 2230. Just select minimum of parameters and see the resulting tightening diagram as well as the force elongation diagram. As a small version of the huge software package Screw-Designer it follows the same input strategy: starting with default values and refining to the own application. An elastic tightening specification is provided for your screw selection which san be modified. Corresponding safety-factors are provided for tightening and operating state. With this convenient tool it is possible to make a fast pre-design of your fastening systems. For limitations see help section of Screw-Designer Basic. If you have to engineer a fastening system in detail, use Screw-Designer full version or contact us, because optimized fastening systems are getting more and more important and can save a lot of money. New: Factor-approach to preload relaxation. It extents the traditional preload loss by seating. Resulting from this much more reliability is achieved, especially when using light materials and/or high preload level. Units can be changed between metric and imperial, so a comparison of thread systems is easy. Following thread profiles are covered: M3 - M64 (coarse and fine), MJ, UNC, UNF, UNJF Following materials for the screw can be selected: Steel 4.8 - 16.8, Aluminum Following materials for clamped part can be selected: Steel, Aluminum, Cast Iron, Magnesium, Plastics The start page provides alternating important tips for engineering design of screws.

About

Strainlabs Bolts

Read full description

The Strainlabs app makes it easy to check the preload in your bolted joint directly on site β€”in just a few seconds. During installation or service, you often need to quickly answer one simple question: Is the preload correct or not? With the Strainlabs app, you get the answer instantly on your phone. What you can see in the app: *Preload *Temperature *Bolt information *Battery level *Proof load All data is sent wirelessly via Bluetooth from the Strainlabs bolt straight to the app, giving you immediate feedback wherever you are. Benefits: *Instant on-site verification *No installation required *No router or IT integration needed *Works offline *Faster inspections Perfect for: *Installation *Service and maintenance *Field inspections *Quality assurance With Strainlabs, you get a simpler, faster, and more reliable way to check bolted joints β€”directly in your phone.

Screenshots

Screw4 screens
Strainlabs Bolts4 screens

Verdict

The call

The clearest difference is iOS requirement: Screw at 7.1 against Strainlabs Bolts's 13.0. On price, ads, in-app purchases 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference Β· 5 level
Screw versus Strainlabs Bolts: the parameters behind the verdict, then further details
ParameterScrewStrainlabs Bolts
PriceFreeFree
Update frequencyβ€”Every 3 days
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS7.1 β€” better13.0
Further details β€” not scored
Size12 MB25 MB
Age rating4+4+
DeveloperAFS Advanced Fastening Solutions GmbHStrainlabs AB

In-app purchases

None

Screw

No in-app purchases

None

Strainlabs Bolts

No in-app purchases

Questions

Is Screw free?
Screw is free to download, with no in-app purchases.
Is Strainlabs Bolts free?
Strainlabs Bolts is free to download, with no in-app purchases.
Do Screw or Strainlabs Bolts have ads?
Neither Screw nor Strainlabs Bolts shows ads.

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