MacGlow
macOS app to sync brightness across Mac and all Monitors
Get picks like this daily. Today's launch numbers, the top launches, AI and tech news, and a daily opportunity pick, straight to your inbox.
Want to reach these readers? Sponsor an issue.
I built MacGlow - A MacOS app to sync brightness across your Mac and all connected Monitors.Supports every Macbook Air, Pro, iMac and Mac Mini models ever released running MacOS 12.4 and above.Demo: https://youtu.be/_lOyThemhPA Website: https://lovi.sh/macglow
HN · launched Nov 29, 2025 · 7 upvotes (top 62%) · 0 views
Niche: desktop and display utilities · 171 launches, 6 in the last 7 days ▼ -75% · Explore this niche →
Category and tags
- Horizontal
- Workflow automation
- Prosumer
- Not AI
- Commercial product
Visit website ↗ Source listing ↗
More like this: all 171 launches in desktop and display utilities →
Could you build this?
Partial The UI wrapper is simple, but reliably controlling third-party external monitor hardware brightness on macOS requires low-level DDC/CI protocol communication and IOKit APIs.
What it would actually take: A native Swift/Objective-C macOS app must interface with macOS DisplayServices and IOKit frameworks, sending I2C/DDC (Display Data Channel Command Interface) packets over HDMI/DisplayPort/USB-C to monitor microcontrollers. The difficult part is dealing with vendor-specific DDC quirks, Apple Silicon hardware limitations, and multi-monitor edge cases where DDC commands are dropped or unsupported without virtual brightness workarounds.
Discussion
5 comments analyzed.
Feature requests: Sync brightness across multiple Mac devices, Integration with Universal Control
Competitors
Other products that read as similar to this one : 857 launches clear the similarity bar, closest 8 shown.
Attention rank: #481 of 858 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 31 days after the earliest competitor.
- Screen Bright · ph · 2026-09-18 · 2 upvotes · similarity 0.66
- Tejora · ph · 2026-09-23 · 8 upvotes · similarity 0.56
- Afterglow · ph · 2026-09-14 · 96 upvotes · similarity 0.55
- ChillScreen · ph · 2026-10-06 · 1 upvotes · similarity 0.55
- FrameSight Pro · ph · 2026-09-19 · 1 upvotes · similarity 0.55
- Oh My Focus · ph · 2026-10-13 · 2 upvotes · similarity 0.54
- Lumadio · ph · 2026-11-09 · 1 upvotes · similarity 0.53
- Asight · ph · 2026-09-16 · 1 upvotes · similarity 0.53
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.