# NutBar > NutBar is a macOS menu bar app that monitors uninterruptible power supplies (UPS) using the Network UPS Tools (NUT) protocol. It displays real-time battery status, runtime estimates, and load information for CyberPower, APC, and other NUT-compatible UPS devices, with optional automated sleep when battery thresholds are reached. NutBar is published by Runtime Studio and distributed exclusively through the Mac App Store. ## Key Information - **Platform:** macOS 26.0 or later - **Price:** AUD 7.99 (App Store regional pricing applies) - **Distribution:** [Mac App Store](https://apps.apple.com/us/app/nutbar/id6762081662) - **Publisher:** [Runtime Studio](https://runtimestudio.com.au) - **Protocol:** Network UPS Tools (NUT) — communicates with `upsd` over TCP - **Hardware support:** Any UPS supported by NUT, including CyberPower, APC, Eaton, Tripp Lite, and others ## Features - Live UPS status in the macOS menu bar (battery percentage, runtime, load) - Configurable battery thresholds for automated system sleep - Native Swift app with strict concurrency and minimal resource usage - Connects to any reachable `upsd` instance — local NAS, home server, or remote host ## Pages - [Home](https://nutbar.app/): Product overview, features, and download link - [Mac App Store listing](https://apps.apple.com/us/app/nutbar/id6762081662): Official purchase and download page - [X](https://x.com/nutbarapp): Official X profile ## About Runtime Studio Runtime Studio is an Australian software studio that builds focused, native utilities for macOS and infrastructure tooling. NutBar is its first published Mac App Store release.