
RescueTime
Harvest
Toggl
Clockify
Time Doctor
TimeCamp
TimoDesk
Time tracking, billable hours, and team reports; with native Notion integration built in. Track time on any project, invoice accurately, and run your team from one tool. Free for individuals.

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Website, pricing, platforms and company facts side by side.
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| Website | timeknot.app | opalstack.com |
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| Company | 1 - 9 employees · 2026 | — |
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In their own words, as submitted to SaaSHub.


TimeKnot; Modern Time Tracking with Deep Notion Integration TimeKnot is a time tracking tool built for freelancers, consultants, and teams who want to stop guessing where their hours go. Track billable time, run reports, manage projects, and (if you use Notion) sync everything with your workspace...
No description of Opalstack yet.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
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Overall verdict
Why this product is good
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Walkthroughs and reviews on video.
Timeknot - Turn your Notion tasks into a full time tracking system
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As answered by people managing TimeKnot and Opalstack.
TimeKnot's answer
TimeKnot is the only modern time tracker built natively for Notion. Most time trackers force you to maintain two systems; one for tasks, one for time. TimeKnot connects directly to your Notion workspace, syncs your tasks two ways, and even lets you embed timer widgets inside Notion pages. Track time where your work actually happens.
TimeKnot's answer
Tools like Clockify, Toggl, and Everhour are powerful but generic; they treat your tasks as separate from your time. If you live inside Notion, that means constant manual syncing, renaming tasks twice, and forgetting to stop timers. TimeKnot solves that with native Notion integration, two way sync, and embedded widgets. Plus it's free forever for individuals, with paid plans only when your team grows.
TimeKnot's answer
TimeKnot is built for freelancers, consultants, small agencies, and Notion power users. The common thread: they run their work inside Notion and need accurate time tracking for billing, project profitability, and team coordination; without switching to a second tool every time they start a task.
TimeKnot's answer
TimeKnot started as a Clockify integration for Notion users. Early users kept asking the same question: why do I need a second tool just to track time on my Notion tasks? So the team rebuilt the core to run natively. Now TimeKnot is a full time tracker on its own, with deep Notion integration as the differentiator. Clockify import and export are still supported for teams migrating over.
TimeKnot's answer
-Next.js 16 (App Router) -React with Tailwind CSS v4 -Supabase for database and authentication -Notion API for workspace integration -Anthropic Claude for AI features -Resend for transactional email -Hosted on modern serverless infrastructure
TimeKnot's answer
-Independent freelancers across web design, development, and branding -Small consulting agencies running client projects in Notion -Notion template creators tracking time across multiple builds -Solo founders and indie builders managing personal and client work -Remote teams using Notion as their primary project management hub
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