Index vs Histiq

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

Index compared with Histiq
Detail	Index	Histiq
What it does	Keep work, personal life, and every project in its own space. Switch between them without closing tabs or losing your place.	AI semantic search for your browser history and PDFs
Stage	Not given	Startup
Founded	Not given	Not given
Based in	Not given	US
Pricing model	Free	Freemium
Pricing	Not given	Free 14-day trial (no credit card required, starts on install). Then: Monthly $6.99/mo, Annual $4.17/mo (billed $49.99/year, save 40%), or Lifetime $129 one-time payment.
Key features	Spaces, each holding its own groups that open as Chrome tab groups Favorites: up to eight pinned pages that stay with you in every space Sleeping tabs that go out of sight and come back when clicked Hundreds of themes Rewind function keeping a week of changes on your computer Export one JSON file to share with AI assistants like ChatGPT or Claude Search any group, space or link from any page Private by design with no account, server, or network requests	Semantic search by meaning instead of exact keywords Automatic PDF indexing and search Sub-50ms search latency Works on Chrome and Edge from single install Privacy controls including domain blocklist and URL patterns Encrypted local backup and export No account or login required Support for PDFs up to 50 MB
What makes it different	Keeps a week of changes you can rewind through on your computer Sleeping tabs preserve your place while keeping them out of sight	Only browser history tool that is 100% local with zero data transmission to servers Includes full 14-day free trial with no credit card required Works across Chrome and Edge without requiring separate installs Lifetime purchase option with no recurring billing
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)	20 no change since last check	1 no change since last check
Trust Flow (Majestic)	0	2
Citation Flow (Majestic)	9	15
Referring domains (Majestic)	7	30

4 details filled in for both companies.

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