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Applications for monitoring macOS systems:
Applications for maintenance and customization of macOS
Applications for networks and servers
Handy little tools
Applications for sensor access in selected Apple computers

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Software for macOS

TinkerTool System 5TinkerTool System 5

TinkerTool System 5 is a collection of system utility features assisting you in performing advanced administration tasks on Apple Macintosh computers. The application makes use of a self-adapting user interface which automatically adjusts to the computer model and to the version of macOS you are running. All options available in the current situation are accessible via “panes”, very similar to the techniques you already know from the System Preferences application. All functions can be controlled by a single program which acts as general toolbox and First Aid assistant.  Learn more…

HardwaremonitorHardware Monitor

Hardware Monitor is an application to read out hardware sensors in Macintosh computers. Several hundred sensors in more than 70 model series are supported. The program can display and visualize measured values in a large variety of fashions, including speech output. Readings can be stored and exported. In addition, artificial software sensors monitoring macOS can be defined, and external LCD units can be controlled. The application also allows you to explore other technical data of your computer, like exact processor type, logicboard data, battery, display, and drive information, or manufacturing details. Learn more…


TinkerTool is an application that gives you access to additional preference settings Apple has built into macOS. This allows to activate hidden features in the operating system and in some of the applications delivered with the system.

The tool makes sure that preference changes can only affect the current user. It will never change any component of the operating system, so the integrity of your system is not put at risk, and there will be no negative effect on system updates. Learn more…

System MonitorSystem Monitor

Do you like to know which parts of your computer are currently busy? Do you like to monitor the current performance of hard drives and network interfaces? Do you like to keep an eye on the number of write accesses to your precious SSD? Do you like to see which disks are currently in sleep mode? Are you a PC switcher, but you miss the flickering activity lights of disks and interfaces on your Mac? But you like to do all this unobtrusively, with typical Mac design, wasting no screen real estate? Then, System Monitor will be a very interesting app for you. Learn more…

Battery MonitorBattery Monitor

More and more computers are mobile devices nowadays. The most important prerequisite for a portable computer is a chargeable battery which keeps the device powered. Batteries are not really cheap replacement parts and they are subject to wear and tear. Their lifetimes should be optimized, handling them with the necessary care. Battery Monitor is a small auxiliary application useful in this regard. It offers the following features: Display of the charge state in the Dock, display of internal battery information, capturing charge and discharge curves, bookkeeping of the aging process of the battery.  Learn more…

Sync CheckerSync Checker

Sync Checker is designed to check if two folders or disks are perfectly synchronized, i.e. if they have exactly the same contents. Verify if your backup and sync programs work correctly, find out where two macOS installations differ, test if your web server has received the latest updates of your web pages: There are many situations where Sync Checker can be really helpful.

If file collections are not in sync, Sync Checker will help you to browse through the differing items, analyzing exactly where a mismatch occurred, and if the differences are critical or negligible. Filter tools help you to navigate through large sets of mismatching objects. You can also create a textual report of the results which can be printed or exported.  Learn more…

NFS ManagerNFS Manager

NFS Manager is a graphical user interface to control all built-in NFS features of macOS. It can manage a whole network of macOS computers to setup a distributed NFS file system via a few simple mouse clicks.

NFS (Network File System) is the industry standard for file sharing on UNIX systems like macOS. Each macOS system can be setup as an NFS server to offer files to the network, or as an NFS client to access files shared by other computers. Different from other file sharing protocols built into macOS, NFS has no limitations in the number of users or connections concurrently active. In addition, NFS can be setup to connect to servers fully automatically (“automounting”) without any password entries being necessary. >Learn more…


PrefEdit is an application to manage nearly all aspects of the preference system contained in every macOS installation. The program consists of three components which are tightly integrated with each other: A browser and editor for the macOS preferences database, a browser and editor for macOS property list files (plists), and a browser for preference manifest files. PrefEdit was the first preferences editor ever published for Mac OS X. With its long experience and maturity, it has become one of the most advanced preference management applications for macOS available today.  Learn more..


SystemLoad is a diagnostic application assisting you in the detection of cooling or power supply problems with Apple Macintosh computers. The tool can put a user-definable load onto one or more processors. This can help in diagnosing the following issues: problems with the cooling system or temperature sensors, problems with chirping noise caused by oscillating parts in the voltage supply circuitry of specific computer models, problems with battery units of portable computers.  Learn more…

TinkerTool System 4TinkerTool System 4

TinkerTool System 4 is an older version of TinkerTool System, designed for the operating systems OS X 10.10 Yosemite and OS X 10.11 El Capitan, supporting their different feature sets.  Learn more…

TinkerTool System 2TinkerTool System Release 2

TinkerTool System Release 2 is an older version of TinkerTool System, optimized for the operating systems Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, OS X 10.8 Mountain Lion, and OS X 10.9 Mavericks. The renowned collection of system utility functions is still available for users of Apple Macintosh computers which have been released before Summer 2007.  Learn more…

Hardwaremonitor RemoteHardware Monitor Remote

The program Hardware Monitor Remote is an add-on to the program Hardware Monitor for the macOS operating system.

Hardware Monitor Remote allows you to use a hardware monitoring service on a remote Macintosh system. Other computers can contact this system via your local area network to receive readings from supported hardware sensors. In addition, the application can be used in connection with Hardware Monitor to control external LCD units on "headless" computers that are operated without display screens.  Learn more…

Legacy Software Products

Temperature Monitor and other software products for use with operating systems prior than Mac OS X 10.7 Lion can be found on the page for vintage and obsolete computers.