Resettle vs Sundown
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Resettle compared with Sundown
| Detail | 
Resettle | 
Sundown |
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| What it does | Restore Mac windows after monitor changes
| Block blue light and remove screen flicker on your Mac so you can feel better, think clearer and sleep deeper
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| Stage | Not given
| Not given
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| Founded | Not given
| Not given
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| Based in | Not given
| Not given
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| Pricing model | Paid
| Freemium
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| Pricing | $14.99 once. Updates included. No subscription. No recurring fees.
| 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)
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| Key features | - Remembers window positions per display setup
- Restores layouts automatically when displays change
- Learns desks without manual profile configuration
- Tells apart identical monitor models at different locations
- Supports two, three or more monitors
- Returns full-screen windows to full screen on the right display
- Can reopen apps a setup had open, per app
- Waits for display configuration to settle before restoring
- Every restore can be undone
- Works offline, layouts never leave the Mac
| - 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
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| What makes it different | - One-time purchase with no subscription or recurring fees
- No manual configuration required; learns desks automatically
- Works offline with periodic license validation
| - 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
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 9 ▲ +5 (up) since last check | 26 ▲ +2 (up) since last check |
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| Trust Flow (Majestic) | 18 | 6 |
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| Citation Flow (Majestic) | 21 | 27 |
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| Referring domains (Majestic) | 69 | 35 |
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5 details filled in for both companies.
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