MarklyKit vs Locksy

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

MarklyKit compared with Locksy
Detail	MarklyKit	Locksy
What it does	Browser extension for highlighting, annotating, and taking notes on any webpage	Lock and password-protect any browser tab in one click with offline encryption and no account needed
Stage	Not given	Startup
Founded	Not given	2024
Based in	Not given	Not given
Pricing model	Freemium	Freemium
Pricing	Free plan includes unlimited highlighting and drawing with local-only storage. Pro plan costs $7.99/month with a 7-day free trial, including cloud sync, unlimited sticky notes, PDF export, AI connectors, and API access.	Free Core tier includes core tab locking, biometric unlock, offline encryption, 3 domain locks, 3 intruder photos, 5 biometric unlocks per day, and 3 total uses of Lock All Tabs. Locksy Pro is $4.99 one-time payment for lifetime license covering up to 5 devices, with unlimited domain locks, unlimite
Key features	Privacy masking with blur tool for sensitive data AI connectors for Claude, ChatGPT, and Grok via MCP server Local-first storage with optional cloud sync on Pro plan Keyboard shortcuts for rapid tool switching Focus mode to toggle annotation visibility Browser PDF highlighting support	Password protection with PBKDF2 encryption at 600,000 iterations Domain and URL path locking with wildcard patterns Biometric unlock with Touch ID, Windows Hello, and Face ID Auto-lock timer with smart activity detection Privacy Blur Shield to mask passwords and credit cards Screen Share Shield for meeting protection Webcam intruder capture on failed unlock attempts Scheduled locking during specific hours and days
What makes it different	Designed specifically for academic research with citation-ready PDF exports Built-in MCP server enabling direct AI integration without copy-pasting No account required to start highlighting immediately	No account required, works instantly in 30 seconds One-time $4.99 lifetime Pro payment with no subscriptions Works across all major browsers including Chrome, Edge, Firefox, Brave, Opera, Vivaldi Granular tab-level protection instead of all-or-nothing device lock
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)	Not checked yet no change since last check	36 no change since last check
Trust Flow (Majestic)	0	1
Citation Flow (Majestic)	6	20
Referring domains (Majestic)	2	20

5 details filled in for both companies.

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