# P&ID — Piping Instrumentation Diagram

> Interactive trivia app for learning and testing P&ID symbols and their applications. (iPhone/iPad app by Forwa Elade Wunde.)

- Source: https://appshunter.io/ios/app/p-and-id/id6738429006 (this page in markdown: same URL + `.md`)
- Developer: [Forwa Elade Wunde](https://appshunter.io/developer/1685241344)
- Category: Education, Games, Trivia
- Price: Free with in-app purchases
- Rating: 4.30/5 from 6 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 6 MB
- Languages: American English, Hindi, Italian, European Portuguese, Russian, European Spanish
- Released: 2024-11-21
- Data updated: 2026-09-02
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/p-and-id/id6738429006/reviews.md

## What is P&ID?

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Master the art of reading and interpreting Piping and Instrumentation Diagrams (P&IDs) with P&ID Trivia! This engaging trivia quiz app is designed for engineers, students, and industry professionals looking to enhance their knowledge of P&ID symbols and their applications.

Key Features:

Interactive Quizzes: Test your skills with hundreds of questions on P&ID symbols, including valves, instruments, pumps, and more.
Symbol Categories: Learn and identify symbols from various categories such as piping, process equipment, instrumentation, and control systems.
Learn as You Play: Get detailed explanations and real-world examples after each question to deepen your understanding
Multiple Difficulty Levels: Start as a beginner and advance to expert-level challenges.
Offline Mode: Learn anytime, anywhere, without the need for an internet connection.

Perfect for students, professionals, and anyone working in engineering, manufacturing, or process industries. With P&ID Trivia, you'll gain confidence in reading diagrams and understanding process flows like a pro.
Download now and become a P&ID expert!


Download Piping and Instrumentation Diagrams (P&IDs) today and see how many like you can identify like:

Hand-Operated Gate Valve, Gate Valve, Closed Gate Valve, Hand-Operated Globe Valve, Globe Valve, Rotary Valve, Needel Valve, Control Valve, Piston-Operated Valve, Back Pressure Regulator, Plug or C**k Valve, Check Valve, Butterfly Valve, Flanged Valve, Angle Valve Hand-Operated, Angle Globe Valve, Relief Valve, Angle Valve, Angle Blowdown Valve, Ball, Normally Closed Ball, Diaghragm, Plug Valve, Check Valve, Solenoid Valve, Hydraulic Valve, Motor-Operated Valve, Pilot Gate Valve, Weight Gate Valve, Powered Valve, Float-Operated Valve, Needle Valve, 3-Way Valve, 3-Way Plug Valve, Diaphragm Valve, 4-way Plug Valve, 4-way Valve, Electro-Hydraulic Valve, Balanced Diaphragm Gate Valve, Spring Gate Valve, Ram Valve, Slide Valve, Metering Coke, Knife Valve, Excess Flow Valve, Post Indicator, Self Draining Valve, Pinch Valve, Minimum Flow Valve, Auto Recirculation, Gauge, Bleeder Valve, Integrated Block Valve, Maual Integrated Valve, Orifice, Rotameter, Quarter Turn Valve Double Acting, Quarter Turn Valve Spring Acting, Self-Operating Release Valve, Indicator, Behind Control, On Central Control, On Local Control Pane, Behind a Local Control, Odometer, Pressure Gauge, Flowmeter, Thermometer, Shared Indicator, Displayed Configurable, Computer Indicator, Programmable Indicator, Displayed Programmable Device, Computer, Unit Control Panel, Temp Indicator, Temp Transmitter, Temp Recorder, Temp Controller, Flow Indicator, Flow Transmitter, Flow Recorder, Flow Controller, Level Indicator, Pressure Indicator, Level Transmitter, Level Recorder, Level Controlle, Pressure Transmitter, Pressure Recorder, Pressure Controller, Pressure Indicator, Pressure Recording, Level Alarm, Flow Element, Temperature Element, Level Gauge, Analyzer Transmitter, Transducer, Specialty Item, Sampler, Straightening Vanes, Diaphragm Meter, Rotary Meter, Magnetic, Pitot Tube Type Flow, Pitot Tube, Wedge Meter, Target Meter, Weir Meter, Ultrasonic Meter, V-cone Meter, Venturi Meter, Quick Change, Turbine Meter, Rotometer, Double, Steam Traced, Venturi, Flowmeter, Vortex Sensor, And Gate, Or Gate, Not Gate, Correcting Element, Diamond, Pressure Gauges, Thermometers, Averaging Pitot Tube, Level Meter, Coriolis Flow Sensor, Flow Nozzle Meter, Flume Meter, Manhole, Socket Connection, Support Bracket, Support Leg, Support Ring, Support Skirt, Compressor, Reciprocating Compressor, Compressor silencers, Centrifugal, Rotary Compressor, Rotory Compressor and silencers, Liquid ring Compressor, Centrifugal Compressor, Centrifugal blower, Axial Compressor, Centrifugal pump, Gas blower, Vertical pump, Liquid ring vacuum pump

## Key features

- Interactive P&ID symbol quizzes
- Symbol categorization
- Detailed explanations and examples
- Multiple difficulty levels
- Offline learning mode

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| 6 months | $19.99 | per 6 months |
| Month | $9.99 | per month |
| Year | $29.99 | per year |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/p-and-id/id6738429006/reviews.md

### 2/5 — It’s a good app to learn with, but..

*2026-07-11*

You have to pay monthly, every 6 months, or a year to use it, and it’s not cheap. Why can’t I just buy the app and have it forever? Greed

## Frequently asked questions about P&ID

### What is P&ID Trivia?

P&ID Trivia is an educational app designed to help users master the interpretation of Piping and Instrumentation Diagrams (P&IDs) through interactive quizzes. It offers detailed explanations and real-world examples to enhance learning.

### Who is P&ID Trivia for?

This app is ideal for engineers, students, and professionals working in industries that utilize P&IDs, such as manufacturing and process industries. It aims to build confidence in reading and understanding process flows.

### Can I use P&ID Trivia offline?

Yes, P&ID Trivia features an offline mode, allowing you to learn and test your knowledge of P&ID symbols anytime and anywhere without requiring an internet connection.

### How does P&ID Trivia help me learn?

The app provides interactive quizzes covering various P&ID symbols and categories. After each question, you receive detailed explanations and real-world examples to deepen your understanding of symbol applications.

### Does P&ID Trivia have ads?

No, P&ID Trivia does not contain advertisements, providing an uninterrupted learning experience for its users.

### What are the subscription options for P&ID Trivia?

P&ID Trivia offers flexible subscription plans including monthly at $9.99, 6 months at $19.99, and yearly at $29.99, providing access to premium features and content.

### Is P&ID Trivia suitable for beginners?

Yes, P&ID Trivia offers multiple difficulty levels, allowing users to start as beginners and progress to expert-level challenges. This ensures a tailored learning experience for all skill levels.

### What is the age rating for P&ID Trivia?

P&ID Trivia has an age rating of 4+, making it accessible for a wide range of users interested in learning about P&ID symbols.

## Version history (last 5 releases)

### 4.7.4 — 2026-08-26

-Revised the Spanish localization of the app

### 4.7.3 — 2026-08-11

-Fixed the issue of not being able to reset game progress for some levels

### 4.7.2 — 2026-07-26

-Updated the Symbols Details section with additional info about the symbols

### 4.7.1 — 2026-07-10

-Updated the API key

### 4.7 — 2026-06-25

-Removed unused packages to optimize performance

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All apps by Forwa Elade Wunde: https://appshunter.io/developer/1685241344

## Related topics

[instrumentation](https://appshunter.io/ios/topics/instrumentation)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-02.*