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 | Aug 2026 | ||
| 6 | $9.99 | — | No | No | Aug 2026 | ||
| 7 | $0.99 | — | No | No | Jul 2026 | ||
| 8 | $5.99 | — | No | No | Aug 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.