248+ iOS apps curated and reviewed
The best density calculator apps on iPhone average 4.2★ across 248+ titles — we've ranked them by what real users actually keep on their phones. Updated August 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | — | No | No | May 2026 |
| 2 |  | $3.99 | 4.9★ (7) | No | No | May 2026 |
| 3 |  | Free | — | Yes | No | May 2026 |
| 4 |  | Free | — | No | Yes | Jul 2026 |
| 5 |  | Free | 5.0★ (1) | No | Yes | May 2026 |
| 6 |  | $2.99 | 5.0★ (2) | No | No | Aug 2026 |
| 7 |  | Free | — | No | No | May 2026 |
| 8 |  | $1.99 | 5.0★ (1) | No | No | Aug 2026 |
Calculate soil sample density and moisture content using T-99 and Cone test methods. This tool serves as a verification aid for chart interpolation in construction and geotechnical applications.
Calculate fuel density at 15°C and determine tank volume using cm readings. Supports standard tank sizes and allows custom dimensions for precise dip calculations.
This app transforms your device into a 3D freight dimensioner, allowing you to quickly measure dimensions, calculate density, and determine freight class. It eliminates the need for manual measuring tools and expensive scanning equipment, providing fast, accurate, and cost-effective logistics solutions.
This utility app assists wide-body aircrews, specifically for Boeing and Airbus aircraft, in comparing uploaded fuel quantities with actual fuel on board. It incorporates density calculations for accurate fuel management.
Instantly calculate Density Altitude and Pressure Altitude using current weather data or custom inputs. Supports both metric and imperial units for input and output.
Instantly calculate air density and atmospheric properties with this offline engineering tool. Features three modes for density, reverse solving, and altitude estimation, with flexible unit support and calculation breakdown.
This utility app assists photographers in determining the correct shutter speed when using neutral density filters. Input your filter's stops and base shutter speed to instantly get the adjusted exposure time, with an optional countdown timer for long exposures.
This tool calculates the standard density of oil products based on measured apparent density. It automatically queries density tables and computes volume correction factors for accurate standard volume and mass calculations. Improve efficiency and accuracy compared to manual methods.
This app calculates radiographic density variations for industrial radiographers and inspectors. It is designed to assist professionals working with ASME Section V standards in their density calculations.
Calculate pressure and density altitude using airfield elevation, local QNH, outside air temperature, and dew point. This tool provides essential aviation weather data.
This reference tool helps users find the bulk density of over 1700 materials. It's designed for professionals working with powders and bulk solids, assisting in conveyor specification and production system design. Search for materials by typing their name to quickly get estimated bulk density values.
Calculate the pixels per inch (PPI) or dots per inch (DPI) for any display. This tool helps determine screen resolution based on dimensions and pixel count, also calculating screen size, aspect ratio, and megapixels.