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Android Apps > Productivity > P Numbers
App profile & analytics · Productivity · Data updated 2026-09-10
P Numbers icon

P Numbers

by C-Spec · Free · Version 2.2.2

“Quick lookup of base metal weldability grouping numbers.” the developer's tagline

Availability On Google Play since May 2018 ↗
Rating on Google Play
–
At a glance AppBrain's trailer of this app, made from our data
Rating
–
0 reviews
Total installs
6.5
thousand
Installs, last 30 days
51
Best rank
–
not in the top lists
Last updated
July 29, 2026
2.2.2
AppBrain's verdict EstablishedNiche

P Numbers is a niche app, with 6.5 thousand installs. It doesn't have enough ratings yet to judge what users think.

P Numbers is made and published by C-Spec. AppBrain is an independent app data site and isn't affiliated with C-Spec. The app name, icon, screenshots and description belong to C-Spec and are shown as published on Google Play.

About P Numbers

P Numbers is a productivity app developed by C-Spec.

Install Statistics

P Numbers has been installed 6.5 thousand times. In the last 30 days, the app was installed 51 times.

User Ratings

The app has no ratings yet.

App Information

P Numbers is freely available from Google Play. The app size is 4.15 MB. The latest version available is 2.2.2. The last update was on July 29, 2026.

Technical Requirements

P Numbers requires Android 4.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since May 2018.

Description by C-Spec (from Google Play)
P-Numbers: Quick lookup of base metal weldability grouping numbers for welding procedure and performance qualification. Data is provided by C-spec from the master source used for generation, proof-reading and maintenance of ASME Section IX Table QW/QB-422, AWS B2.1 Table C1 and C2, and ISO/TR 20173.

Recent changes:
Updated the app to target Android 16 (API level 36) to comply with the latest Google Play requirements.
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App Performance Report

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Screenshots

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Screenshots by C-Spec, from the Google Play listing
Official page on Google Play

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Installs over time

P Numbers has been installed 6.5 thousand times. Over the past 30 days, it has been installed 51 times.

Changelog of P Numbers

Show changelog

Developer information for C-Spec

C-Spec

mike@cspec.com

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Comments on P Numbers for Android

★★☆☆☆ Alex Rodriguez · Jun 5, 2026
Common Bug, this app performs just like the F Numbers App.... For some reason the app refreshes after making a selection and repopulates the default information... Constant fighting just to make a selection. I have tried to uninstall and reinstall the app but the same problem arises. I would like for C-spec to fix this bug
★★☆☆☆ Rob LeBlanc · Sep 18, 2024
Keeps resetting while trying to look at a value and goes back to top of page. Like the app but the resetting is annoying! Will give 5 star if you fix app.

Google Play Rankings for P Numbers

This app is not ranked

Technologies used by P Numbers

3 permissions · 1 libraries
Subscribe to see full permission and library details

Frequently asked questions about P Numbers

Is P Numbers free?

Yes. P Numbers is free on Google Play.

Is P Numbers still available?

Yes. P Numbers is on Google Play, and the last update we saw was on July 29, 2026.

Does P Numbers contain ads?

No. Google Play does not list P Numbers as containing ads.

What Android version does P Numbers require?

P Numbers runs on Android 4.0 and higher.

How large is P Numbers?

P Numbers is 4.15 MB.

Is P Numbers suitable for children?

Google Play rates the content of P Numbers as suitable for everyone.

How many times has P Numbers been installed?

Google Play lists 5,000+ installs for P Numbers.

Who made P Numbers?

P Numbers was developed by C-Spec. It is listed in the productivity category on Google Play.

What are the best alternatives to P Numbers?

People looking at P Numbers also look at these productivity apps: Piping Fabrication and Welding, Hobart Brothers Welding Calcul, Pipedata, Piping Engineering, Periodic Table Atom - 2025.

Popular Productivity Apps Price drops on Google Play Today's trending apps Top new apps Apps other people are watching
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Periodic Table Atom - 2025 icon Periodic Table Atom - 2025
Periodic Table - Study, Practi icon Periodic Table - Study, Practi
Elements Academy: Play & Learn icon Elements Academy: Play & Learn
WELDING EXAM Quiz 2024 Ed icon WELDING EXAM Quiz 2024 Ed
Overview Alternatives History Reviews Rankings Technology
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