Instantly convert resistance to temperature and vice versa for over 70 RTD types and 9 popular thermistors. This tool uses precise algorithms for accurate calculations, ideal for field technicians and engineers.






161+ iOS apps curated and reviewed
If you already know RTD Reference, this is the deeper bench. 161+ dohmann engineering services apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of June 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | $3.99 | 5.0★ (1) | No | No | May 2026 | |
| 2 | Free | — | No | No | May 2026 | |
| 3 | $5.99 | 4.3★ (3) | No | No | May 2026 | |
| 4 | $2.99 | 5.0★ (3) | No | No | May 2026 | |
| 5 | $0.99 | — | No | No | May 2026 | |
| 6 | $9.99 | — | No | No | May 2026 | |
| 7 | $0.99 | — | No | No | Jul 2026 | |
| 8 | $5.99 | — | No | No | May 2026 |






Instantly convert resistance to temperature and vice versa for over 70 RTD types and 9 popular thermistors. This tool uses precise algorithms for accurate calculations, ideal for field technicians and engineers.












This advanced calculator offers engineers and mathematicians a powerful tool with intuitive, multi-line display and left-to-right data entry. It supports various number bases, notations, and includes extensive statistical analysis and graphing capabilities. All features are available for a one-time purchase.


This comprehensive utility app offers a suite of 10 powerful conversion and calculation tools, including units, currency, scientific, and more. Designed by an engineer with decades of experience, it ensures accuracy and a user-friendly interface for a wide range of applications.










Design, build, and maintain the infrastructure of a growing city. Tackle six demanding challenges to learn about engineering roles and the construction process. Connect to a careers website for more information on STEM jobs.




Master engineering concepts with a comprehensive dictionary of over 11,000 terms, key equations, and formulas. Features interactive quizzes, a visual quick guide, and hands-free learning with autoplay mode. Ideal for students and professionals seeking to solidify their engineering knowledge.


This tool assists insurance professionals with field inspections by guiding them through data collection. Submit your findings and receive a sealed engineering report with answers from a licensed professional engineer, typically within 3 business days.


This app provides a comprehensive guide to mechanical engineering, covering fundamental concepts, key terms, and essential formulas. It's designed for students and professionals to deepen their understanding of machine mechanisms and engineering principles.


This app provides 34 civil engineering calculators for beam analysis and conversion, referencing industry codes. It offers auto-fill options for material and section pickers and supports dual units. A pro version unlocks unlimited calculations, history, and PDF exports.


This app provides piping engineers with essential tools, dimensions, and standards for design and analysis. It includes calculators, checklists, software shortcuts, and educational resources to streamline work and enhance knowledge.


Learn fundamental building construction and civil engineering concepts through easy-to-understand examples and explanations. This app is designed for beginners to grasp essential principles of construction and development online.






Streamline service requests for your machinery with this app. Submit technical issues, spare part needs, or maintenance questions in five simple steps, including photos and descriptions. Track the status of your service cases in real-time for increased transparency.


Instantly decode civil engineering terms with this free offline dictionary. Features a vast encyclopedia, search functionality, bookmarking, sharing, and audio pronunciation.