Easily calculate the correct oil-to-fuel ratio for your engine to prevent emissions and spark plug fouling. Adjust amounts precisely using sliders and buttons, and switch between metric and imperial units.





10+ similar apps compared and reviewed
Whether you want more options like ToolOrganizer or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.







Easily calculate the correct oil-to-fuel ratio for your engine to prevent emissions and spark plug fouling. Adjust amounts precisely using sliders and buttons, and switch between metric and imperial units.





Easily manage and back up your iPhone contacts. This app helps you find recent contacts, eliminate duplicates, and export your address book to various file formats. It ensures your data is secure and private.


This enterprise solution streamlines asset management, mapping, and traceability. It uses QR codes and GIS technology to track asset activity, collect data in real-time, and provide robust reporting for informed decision-making.


This app allows users to measure printed architectural and engineering drawings directly on their device. It supports both known and unknown scales, offering fixed and variable scale options for precise measurements. Users can also select secondary units for quick conversions.


Easily estimate the quantity of various landscaping and hardscaping materials like gravel, stone, and sand. Get precise measurements in tons, cubic yards, or cubic meters for your projects.


This utility app provides a straightforward tool for measuring tilt angles on any surface. It combines a digital reading with an analog-style interface for ease of use. Ideal for quick angle measurements without complexity.


Transform your iPhone into a professional stud detection tool. Accurately locate wooden studs behind walls with visual mapping and precision measurements. Offers multiple detection modes for comprehensive wall analysis.


This utility app helps installers determine the correct size of flexible gas piping for their projects. It calculates the appropriate pipe size based on gas type, tubing length, supply pressure, and flow capacity. Users can also access installation guides and product information.


This application simplifies driveline setup and predicts performance changes from gear ratios and tire size. It offers tools to calculate vehicle speed and RPM variables, aiding in rig planning and performance expectation.