The phrase "add-on tool" is correct and usable in written English.
It can be used to refer to a supplementary software or application that enhances the functionality of a primary program.
Example: "The add-on tool for our project management software allows for better tracking of team progress."
Alternatives: "extension tool" or "supplementary tool".
It runs as an add-on tool for the ENVI+IDL image processing software and is available on request.
A developed prototype system for panelized building construction as an add-on tool for Autodesk Revit is described.
SETIspirit is free add-on tool for SETI@home users which provides useful information about the tasks, the SETI@home project status, workunits and credits.
The creators of the Firefox web browser recently released an experimental "add-on" tool called Collusion that tries to show you the sites you've visited and what tracking devices they set on your computer.
You start by connecting your service of choice in G Suite using the Gmail Add-on tool.
He added 'StayFocused', an add-on tool for web browser, Google Chrome because it blocks user-defined websites over a certain time period.
Xmarks offered web-browser add-on tools that attracted more than 2 million users and plenty of venture capital.
The Windows 2000 Resource Kit contains an extensive set of add-on tools designed to make administering and troubleshooting the Windows 2000 system easier.
Extensive simulations have been carried out using National Instruments software LabVIEW™ and its add-on tools such as control design and simulation toolkit to perform a comparative study for FOFPD, FPD, FOPD and PD as primary controller and FOFPI, FPI, FOPI and PI as secondary controller for setpoint tracking of speed of HEV.
Using three-dimensional (3-D) graphical simulation with a number of add-on tools, MMDE supports visualisation, design, simulation and verification of both the physical model and control logic for design and/or re-configuring machine systems to satisfy new or changed application/customer requirements before any real implementation is made.
They fell in love with the work of a third-party developer, Juha Kiili, who'd built a bunch of 2D add-on tools for the community.
