16+ iOS apps curated and reviewed
Every iPhone needs a few good saybolt viscosity apps. We benchmark 16+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 3.0★ (2) | No | No | May 2026 |
| 2 |  | $2.99 | — | No | No | May 2026 |
| 3 |  | Free | 5.0★ (6) | No | No | May 2026 |
| 4 |  | Free | 5.0★ (3) | No | No | May 2026 |
| 5 |  | Free | — | No | No | May 2026 |
| 6 |  | Free | — | No | No | May 2026 |
| 7 |  | Free | — | No | No | May 2026 |
| 8 |  | Free | — | No | No | May 2026 |
This application serves as a calculator for converting viscosity and temperature values for petroleum fuels. It allows users to convert Kinematic Viscosity in Centistokes to desired target values across different temperature scales. In landscape mode, it transforms into a slider for visual comparison of viscosity units.
Calculate kinematic viscosity or drain time for various viscosity cups. Input a known value and cup type to find the unknown, with visual indicators for valid measurement ranges. Helps select the appropriate cup for accurate testing.
This professional tool performs complex oil calculations for various movements like tank transfers and loading operations. It includes comprehensive conversion tables, ASTM calculations, and blending models. Essential for oil professionals, traders, and engineers on the go.
Monitor Rheonics inline viscometers and density meters wirelessly via Bluetooth LE. View real-time measurements like viscosity, density, and temperature, with options to customize graphs. Future updates will include estimated parameters.
This app converts flow times into viscosity measurements for a specific range of flow cups. It also calculates corrections for a salt contamination meter when used with high-purity filter papers.
