249+ iOS apps curated and reviewed
Looking for free instrumentation apps? 19 of our 249+ 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 | — | No | No | May 2026 | |
| 3 |  | Free | 4.3★ (6) | No | Yes | Sep 2026 | |
| 4 |  | Free | 1.0★ (1) | No | Yes | May 2026 | |
| 5 |  | Free | — | No | Yes | Sep 2026 | |
| 6 |  | Free | 4.7★ (1.4K) | No | Yes | Sep 2026 | |
| 7 |  | $1.99 was $2.99 | — | No | No | Aug 2026 | |
| 8 |  | Free was $5.99 | 4.8★ (986) | No | Yes | Sep 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 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.
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.
