Comparison

Screw vs Pump Go

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

Pump Go

Read full description

Pump Go is your essential companion for designing and analyzing centrifugal pump systemsβ€”anytime, anywhere. Whether you're an engineer, technician, or student, Pump Go helps you perform quick and accurate pump calculations with ease. Free Basic Features: - Perform quick and simple pump calculations - Estimate total dynamic head and pump power - Clean and intuitive interface for on-the-go results Unlock Advanced Tools with Subscription or Lifetime Access: - Create full projects with multiple calculation cases - Define and reuse custom fluids, materials, piping specs, and environmental conditions - Set up suction and discharge systems with pipes and fittings - Automatically calculate power losses due to pipe friction - Save and organize your data for future use Pump Go is built to save you time and boost your productivity in the field, in the office, or at the university. Start with the free version, and upgrade when you're ready to go further. Privacy Policy: https://www.iubenda.com/privacy-policy/26732111 Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Screw4 screens
Pump Go4 screens

Verdict

The call

The clearest difference is in-app purchases: Screw at none against Pump Go's 2. Screw also leads on iOS requirement (7.1 vs 17.0). On price, 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

Both are free to download. Pump Go sells 2 in-app purchases, starting at $14.99 per year. Screw asks for nothing beyond the download.

Scorecard2 real differences Β· 4 level
Screw versus Pump Go: the parameters behind the verdict, then further details
ParameterScrewPump Go
PriceFreeFree
Update frequencyβ€”Every 2 months
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS7.1 β€” better17.0
Further details β€” not scored
Size12 MB23 MB
Age rating4+4+
DeveloperAFS Advanced Fastening Solutions GmbHIrving Josue Cortes Iturriaga

In-app purchases

None

Screw

No in-app purchases

2 purchases

Pump Go

Subscriptions1
  • Annual Subscription$14.991 Year
One-time1
  • Pump Go Forever$59.99

Questions

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

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