Comparison

Virtual Flange Slide Rule vs PVF Reference

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

Head to head
About

Virtual Flange Slide Rule

Access essential measurements and dimensional data for API 6A integral flanges. This tool provides quick access to critical specifications for engineering and industrial applications.

Highlights
  • API 6A integral flange data
  • Relevant measurements
  • Dimensional data access
  • Engineering specifications
Features
Read full description

Valveworks USA presents the Virtual Flange Slide Rule. This application gives you access to all the relevant measurements and dimensional data for the API 6A integral flange.

About

PVF Reference

Access industry standard terminology, specifications, and reference tables for pipe, valves, fittings, and fasteners. Quickly identify materials, understand markings, and find technical data with interactive tables and diagrams.

Highlights
  • Industry terminology glossary
  • Material identification diagrams
  • Technical data tables
  • Formula conversions
  • Manufacturing process diagrams
  • Industry standard marking explanations
Features
Read full description

DistributionNOW’s PVF Reference app is an easy-to-use resource for industry standard terminology, specifications, practices, and reference tables related to pipe, valves, actuation, fittings, flanges, gaskets, and fasteners. Whether you’re an oilfield technician out on a job or working the sales desk, this tool puts essential data at your fingertips in one intuitive package. PVF Info Need help identifying your materials? Major types of pipe, valves and actuation, fittings, flanges, gaskets, and fasteners are rendered for quick identification, along with pipe end styles, flange facings, and more. Industry standard marking stencils are explained plainly with the common specifications and material requirements for your specific applications. Technical Data Tables Our interactive tables make it easy to find the right measurements you need to do your job: pipe charts, pressure ratings, compatibility, and material cross-references. Industry Terminology Can’t remember what that acronym means? Search our glossary of hundreds of oil and gas industry terms, with filterable results. Formulas We compiled the commonly used technical conversions and PVF-specific measurements that oilfield engineers and purchasing managers need every day. Diagrams What’s the difference between ERW and DSAW pipe? Learn about the manufacturing processes for all major types through step-by-step diagrams from top manufacturers. About DistributionNOW We are an industry-leading stocking distributor of PVF and other essential products and provider of supply chain services to the upstream, midstream, and downstream/industrial markets. For more than 150 years, our customers have looked to us to provide them with the products and services that make their businesses run. Find out more about DistributionNOW online: www.distributionnow.com

Screenshots

Virtual Flange Slide Rule4 screens
PVF Reference4 screens

Verdict

The call

The clearest difference is ratings volume: Virtual Flange Slide Rule at 13 against PVF Reference's 2. PVF Reference's advantage is iOS requirement (8.0 vs 15.0). On price, rating, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Virtual Flange Slide Rule against 5.0 for PVF Reference. That said, the two scores are not equally well evidenced: Virtual Flange Slide Rule has 13 ratings behind it against 2, so its average is the more settled of the two.

Scorecard2 real differences · 8 level
Virtual Flange Slide Rule versus PVF Reference: the parameters behind the verdict, then further details
ParameterVirtual Flange Slide RulePVF Reference
PriceFreeFree
Rating5.0 (13 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews—
Number of ratings13 — better2
Update frequencyEvery 4 months—
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.08.0 — better
Further details — not scored
Size3 MB47 MB
Age rating4+4+
DeveloperAmerican Certified Equipment, Inc.DistributionNOW

Customer experience

Virtual Flange Slide Rule

All ratings12 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

PVF Reference

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Virtual Flange Slide Rule

No in-app purchases

None

PVF Reference

No in-app purchases

Questions

Is Virtual Flange Slide Rule free?
Virtual Flange Slide Rule is free to download, with no in-app purchases.
Is PVF Reference free?
PVF Reference is free to download, with no in-app purchases.
Which has better reviews, Virtual Flange Slide Rule or PVF Reference?
Virtual Flange Slide Rule and PVF Reference are both rated 5.0 out of 5 on the App Store, from 13 and 2 ratings respectively.
Do Virtual Flange Slide Rule or PVF Reference have ads?
Neither Virtual Flange Slide Rule nor PVF Reference shows ads.

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