Memory Diag
Memory Diag is a macOS utility that monitors system memory usage from the menu bar and helps users spot apps using significant RAM.
What is Memory Diag?
Memory Diag is a native macOS utility focused on monitoring RAM usage and overall memory pressure. It helps Mac users quickly see how much memory is in use, identify apps with heavier memory use, and open detailed memory information from the menu bar. The app is designed for everyday troubleshooting when a Mac feels slow, becomes less responsive, or shows signs of memory pressure during multitasking. Its interface centers on at-a-glance status, with optional notifications and a customizable menu bar display for ongoing monitoring. Memory Diag is published by Rocky Sand Studio Ltd. and distributed for Mac through the App Store.
Key features
- Monitor system memory usage from the menu bar
- View a memory pressure meter for quick status checks
- See which apps are using significant amounts of memory
- Open detailed memory information and diagnostics
- Receive notifications when memory pressure changes
- Customize the menu bar display to show memory status
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Safety overview
Status: Mostly safe
Memory Diag is a legitimate Mac utility for viewing memory usage and memory pressure. Its menu bar monitoring and notifications are consistent with that purpose. App Store privacy details indicate the developer may collect contact information and usage data that are not linked to your identity, so review those practices if you prefer minimal analytics or marketing-related data sharing.
Recommendation: Keep Memory Diag if you use it to watch RAM usage, troubleshoot slowdowns, or want a quick menu bar view of memory pressure. If you do not rely on its monitoring features, you can remove it without affecting macOS beyond losing its alerts and memory display.
Common paths
/Applications/Memory Diag.app
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