ActivityWatch
Open-source time tracker
TheLibrarian.io
Your WhatsApp AI Assistant
Updated February 2026
| ActivityWatch | TheLibrarian.io | |
|---|---|---|
| Rating | 5.0★ | 5.0★ |
| Reviews | 11 | 24 |
| Pros | 16 | 1 |
| FactScore™ | 54 | 69.9 |
FactScore™ Comparison
FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.
Pros & Cons
Only in ActivityWatch — Pros
Open source Free tier Productivity tracking Time management Cross-platform Privacy focused Active application tracking Data export Extensible Local data storage Visualization options Afk time exclusion Browser extensions Community support Editor plugins Window title trackingBoth tools — Pros
—Only in TheLibrarian.io — Pros
WhatsApp integrationOnly in ActivityWatch — Cons
Design improvement needed Android app instability Complex setup Limited smartwatch integrationBoth tools — Cons
—Only in TheLibrarian.io — Cons
Reminders SchedulingDetails
| ActivityWatch | TheLibrarian.io | |
|---|---|---|
| Categories | Productivity, Time tracking apps, Activity tracking | Productivity, AI Chatbots |
| Platforms | Web · Android | Web |
| Became Popular | July 7, 2019 | April 17, 2025 |
| Website | activitywatch.net | thelibrarian.io |
Who Should Pick Which?
Choose ActivityWatch if...
- Open source
- Free tier
- Productivity tracking
Choose TheLibrarian.io if...
- WhatsApp integration
With a FactScore™ of 54 vs 69.9, TheLibrarian.io leads in community reception. ActivityWatch uniquely offers Open source and Free tier, while TheLibrarian.io stands out for WhatsApp integration.
What Users Say
ActivityWatch
No reviews yet
TheLibrarian.io
I've been using The Librarian daily, and it's quickly become an essential part of my workflow. The more I use it, the smarter it gets - learning my habits, anticipating my needs, and asking exactly...
Polished "AI on WhatsApp" — searches the web, summarizes, answers. Easy to use, no setup.
As a content creator and educator, I juggle classes, content production, and client meetings daily. TheLibrarian.io has been a total game-changer. I use it to auto-schedule my calendar, send well-s...
Related Comparisons
Frequently Asked Questions
Which is better, ActivityWatch or TheLibrarian.io?
Based on FactScore™, TheLibrarian.io leads with a score of 69.9 vs 54. TheLibrarian.io has a higher rating of 5.0★ compared to 5.0★.
What are the pros of ActivityWatch compared to TheLibrarian.io?
ActivityWatch uniquely offers: Open source, Free tier, Productivity tracking, Time management, Cross-platform.
What are the pros of TheLibrarian.io compared to ActivityWatch?
TheLibrarian.io uniquely offers: WhatsApp integration.
Is ActivityWatch better rated than TheLibrarian.io?
ActivityWatch is rated 5.0★ from 11 reviews. TheLibrarian.io is rated 5.0★ from 24 reviews.
What is the FactScore™ of ActivityWatch and TheLibrarian.io?
FactScore™ weighs rating and review volume together. ActivityWatch scores 54 and TheLibrarian.io scores 69.9.
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