Sundown vs Wallspace

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Sundown compared with Wallspace
Detail	Sundown	Wallspace
What it does	Block blue light and remove screen flicker on your Mac so you can feel better, think clearer and sleep deeper	Live wallpaper app for Mac with 4K cinematic wallpapers, lock screen support, and multi-monitor capabilities without draining battery or requiring login
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Freemium
Pricing	Monthly $4.99/mo (after 7-day free trial), Annual $39/year (after 7-day free trial, saves 34% vs monthly), Lifetime $79 once (pay once, own forever, works on 2 computers)	Free forever with curated wallpapers, no download limits, multi-monitor support, and AI search. Pro upgrade: $12.99 one-time (reduced from $15.49), unlocks 4K quality, lock screen wallpapers, premium collections, custom wallpaper uploads, and community features. Multi-device licensing available: 2 M
Key features	Filters blue light down to 500K deep red Removes screen flicker with Flicker-Free Mode Anti-Dithering to smooth visual display Automated scheduling with up to six time-based steps Seven presets plus custom schedule options Runs natively on Apple Silicon and Intel Macs No tracking or telemetry Supports macOS 12 Monterey through macOS 26 Tahoe	4K live wallpapers Lock screen wallpapers Custom MP4 video support Multi-monitor support AI-powered wallpaper search Auto-changing wallpapers Under 2% CPU usage No login or account required Native Swift implementation Battery-efficient playback
What makes it different	Reaches 500K deep red, far deeper than Night Shift's 2700K limit Only blue light app with Anti-Dithering for Apple Silicon Macs Harvard-backed science: blocks blue light that delays circadian clock by 3 hours Produces ~58% more melatonin and ~24 min longer sleep Gentle automated scheduling that eases changes gradually in background	No subscription required - one-time Pro payment or free forever No login, no tracking, no ads - complete privacy True native macOS app built in Swift, not a web wrapper Support for custom MP4 files with automatic lock screen application
Community votes	0	0
DR (Domain Rating by Ahrefs)	26 +2 (up) since last check	31 +1 (up) since last check
Trust Flow (Majestic)	6	5
Citation Flow (Majestic)	27	26
Referring domains (Majestic)	35	122

5 details filled in for both companies.

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