P&ID vs Voltius
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
P&ID
Master the art of reading and interpreting Piping and Instrumentation Diagrams (P&IDs) with this engaging trivia quiz. Test your knowledge of P&ID symbols and their applications through interactive quizzes with detailed explanations and real-world examples. Learn at your own pace with multiple difficulty levels and offline mode.
- Interactive P&ID symbol quizzes
- Symbol categorization
- Detailed explanations and examples
- Multiple difficulty levels
- Offline learning mode
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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
Voltius
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Voltius is an electrical conductor sizing app based on the guidelines of NBR 5410, designed for engineers, electricians, and technicians who need fast and accurate calculations in the field or office. FEATURES 9 installation methods: A1, A2, B1, B2, C, D, E, F, and G Copper (Cu) and aluminum (Al) conductors PVC 70°C and EPR 90°C insulation types Voltage drop calculation (VD) with automatic conductor resizing Temperature correction factors (in accordance with NBR 5410) Grouping factors — based on tables 42 and 43 of NBR 5410 Support for parallel and multicore conductors Automatic mm² ↔ AWG conversion Automatic neutral conductor sizing Light and dark mode Available in Portuguese, English, and Spanish WHO IT’S FOR Voltius is designed for professionals working with low-voltage electrical installations who require reliable conductor sizing aligned with Brazilian standard practices. REFERENCE STANDARD NBR 5410:2004 — Low-voltage electrical installations This application is a support tool and does not replace consultation of the official standard. All calculations should be validated by a qualified professional.
Screenshots
Verdict
The clearest difference is in-app purchases: Voltius at none against P&ID's 3. Voltius also leads on iOS requirement (13.0 vs 17.0). On price, ads and device support 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
Both are free to download. P&ID sells 3 in-app purchases, starting at $9.99 per month. Voltius asks for nothing beyond the download.
| Parameter | P&ID | Voltius |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (6 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 2 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Forwa Elade Wunde | Caio Pinheiro |
In-app purchases
P&ID
- Month$9.991 Month
- 6 months$19.996 Months
- Year$29.991 Year
Voltius
No in-app purchases









