Channel Timeline Viewer vs Astar

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

Channel Timeline Viewer compared with Astar
Detail	Channel Timeline Viewer	Astar
What it does	Watch YouTube channels in chronological order	Name stars, leave notes, and find them again
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Freemium
Pricing	Not given	Not given
Key features	Browse YouTube channel uploads in chronological order Official YouTube embedded player for playback Local storage of watched history and playback progress Ad-free Pro version Popular videos in your country on home screen Support for multiple languages	Name stars and leave notes Public or private note visibility 3D scene visualization Notes limited to 280 characters Likes and favorites Explore feed Automated profanity filtering
What makes it different	Chronological viewing of channel uploads unlike standard YouTube interface Uses official YouTube API and player, not a third-party workaround No account creation required; data stored only locally on device One-time Pro purchase without recurring charges Open source with code publicly available	Private personal night sky Free on iOS and Android Public and private note options
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	2 no change since last check	29 no change since last check
Trust Flow (Majestic)	5	0
Citation Flow (Majestic)	22	12
Referring domains (Majestic)	9	13

4 details filled in for both companies.