Screw vs Strainlabs Bolts
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Screw
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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.
Strainlabs Bolts
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The Strainlabs app makes it easy to check the preload in your bolted joint directly on site βin 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 βdirectly in your phone.
Screenshots
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Screw | Strainlabs Bolts |
|---|---|---|
| Price | Free | Free |
| Update frequency | β | Every 3 days |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 7.1 β better | 13.0 |
| Further details β not scored | ||
| Size | 12 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | AFS Advanced Fastening Solutions GmbH | Strainlabs AB |
In-app purchases
Screw
No in-app purchases
Strainlabs Bolts
No in-app purchases
Questions
Is Screw free?
Is Strainlabs Bolts free?
Do Screw or Strainlabs Bolts have ads?
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