StudyChime vs ExtBid

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 ExtBid
Detail	StudyChime	ExtBid
What it does	Private Prolific study notifications for Chrome, Discord, Telegram and Pushover	Chrome extension to download Instagram posts, Reels, Stories, and Highlights
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Freemium
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.	Monthly: $4.99/month USD (auto-renews on PayPal). Yearly: $29.99/year (about $2.50/month). Lifetime: $79.99 one payment. Free plan includes 20 bulk runs per UTC week, Download New on 10 accounts, and 20 links per Download by Link task. Coupon LAUNCH20 gives 20% off the first period or lifetime.
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 to back up a whole profile Download New for only new posts since last run Download by Link to save posts from URLs or lists Customizable naming and folder organization CSV export of downloaded files Download history by profile Google Drive integration for Pro users
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	Download New maintains baselines to avoid duplicates Human support within 24 hours Works inside Instagram tab with no redirects or external sites
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	2 no change since last check
Trust Flow (Majestic)	0	3
Citation Flow (Majestic)	14	18
Referring domains (Majestic)	3	28

5 details filled in for both companies.

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