215+ iOS apps curated and reviewed
Looking for free instrumentation apps? 17 of our 215+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 5.0★ (4) | No | No | Jul 2026 |
| 2 |  | Free | 1.0★ (1) | No | Yes | May 2026 |
| 3 |  | Free | 4.3★ (6) | No | Yes | Jul 2026 |
| 4 |  | Free | — | No | Yes | Jul 2026 |
| 5 |  | Free | 4.7★ (1.4K) | No | Yes | Jul 2026 |
| 6 |  | Free | — | No | No | May 2026 |
| 7 |  | Free was $5.99 | 4.8★ (965) | No | Yes | Jul 2026 |
| 8 |  | Free | 4.0★ (1) | No | Yes | Jul 2026 |
This app provides a centralized hub for instrument calibration resources. It offers instant answers to process instrumentation questions through an integrated AI agent, streamlining calibration workflows.
This app offers essential calculation tools for instrumentation and control technicians and engineers. It provides free access to basic tools, with advanced calculators available through a one-time in-app purchase or subscription.
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.
This comprehensive toolkit offers over 160 electronic applications, calculators, and reference tools for engineers, students, and hobbyists. It features a multi-functional keyboard, color code tools, audio scope, frequency generator, and component references with datasheet access. The app supports real-time circuit simulations and includes a file manager for saving calculations.
This tool simplifies instrumentation setup and scaling needs. It performs accurate conversions between process variables, 4-20mA signals, and percentages with an intuitive interface for quick calculations.
This app provides electricians, students, and installers with essential electrical theory, interactive diagrams, and practical calculators. It includes a community forum for users to share knowledge and seek advice, all accessible offline without ads or subscriptions.
This specialized annual directory connects instrumentation professionals with purchasers and specifiers of control, sensors, and test equipment. It serves as a comprehensive reference guide for the industry, evolving with market trends since its 2002 launch.
This app provides a comprehensive suite of electrical calculations for professionals. It supports various international standards and offers detailed reports in PDF format. The tool covers wiring, power, motor, and electronic calculations, along with extensive conversion tables and resources.
A professional calculator designed for industrial control, automation, and instrumentation engineers. It offers quick conversions and calculations for gas concentration, units, steam properties, flange levels, and pipeline flow. Ideal for both field debugging and engineering design.
Access comprehensive information about your installed Endress+Hauser instruments on the go. Quickly download specific documentation, view product details like order codes and availability, and find spare parts or successor products by scanning a device's data matrix code or entering its serial number.
Configure and monitor industrial sensors wirelessly via Bluetooth using your smartphone or tablet. Access detailed instrument information, documentation, and diagnostic functions for efficient setup and operation.
This app provides a comprehensive suite of tools and calculators for electronics engineers, students, and hobbyists. It includes numerous calculators for resistors, LEDs, capacitors, Ohm's law, and more, alongside useful tables and unit converters.
Learn surgical instruments through visual study and interactive quizzes. This app offers a comprehensive library of instruments with detailed information, flashcards, and various quiz modes to build recognition and confidence.
This app acts as a musical fitness coach, offering a chromatic tuner and metronome with detailed analytics. It helps users improve their playing or singing by charting progress and providing insights. Record, playback, and analyze performances with a live tuner view.
Transform your device into a versatile toolkit with a comprehensive suite of measuring instruments. This app offers a metronome, stopwatch, timer, ruler, level, and various sensors to assist with a wide range of tasks.
This professional audio analysis app offers a comprehensive suite of tools for acoustic measurements, including SPL, RTA, and FFT. It calibrates device microphones for accurate results and allows for the addition of powerful optional modules for advanced analysis.
Measure, record, and analyze sound levels in your environment. This app offers precision metering, noise elimination tools, hearing protection features, and home audio calibration. It provides detailed reports and can be used with device microphones or external ones.