StudyChime vs SellerGrab

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

StudyChime compared with SellerGrab
Detail	StudyChime	SellerGrab
What it does	Private Prolific study notifications for Chrome, Discord, Telegram and Pushover	Download eBay listing photos in HD and save the listing video without an account
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Not given
Pricing	Free: browser alerts, local milestones, 5 external-alert batches per rolling 24-hour period. Premium: £4.99 one-time payment for lifetime access, includes unlimited external alerts, filter profiles, alert schedules, Remote snooze and resume, custom sounds, and local Study Trends.	Free: unlimited image downloads, 3 listing videos per day, no sign-in required. Pro: $39 per year or $5.99 per month — unlimited video downloads, XLSX export, image format choice (JPG/WEBP/PNG), custom filename templates.
Key features	Browser and Discord, Telegram, Pushover notifications Reward, availability, time, and keyword filters Reusable filter profiles and alert schedules Local Study Trends with 7, 30, 90, and 12-month views Remote snooze and resume from phone alerts Local milestones and progress tracking 14-day Premium trial with no card required Monitoring health status display	Download all listing photos at full resolution (s-l1600) Save listing video as playable MP4 Works on 8 eBay country sites No account or sign-in required for free tier Download as ZIP or separate files 3 free video downloads per day XLSX export of listing details (Pro) Custom image formats and filename templates (Pro) Unlimited video downloads (Pro) No uploads; media travels directly from eBay to disk
What makes it different	Private alerts sent only to services you control, not to StudyChime Does not automatically accept, reserve, refresh, complete or submit studies No Prolific password or cookie permissions required Local-first data storage with privacy-minimised Study Trends One-time £4.99 lifetime Premium purchase with no subscription	Free tier includes video downloads (3 per day), which competitors put behind paid plans No account or sign-in required for free tier Requests permissions for eBay only, not all sites Full resolution available on free tier, not a paid feature
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)	1 no change since last check	27 no change since last check
Trust Flow (Majestic)	0	5
Citation Flow (Majestic)	14	26
Referring domains (Majestic)	3	31

4 details filled in for both companies.

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