Time tracking comparison
TimeLens vs ActivityWatch: track device activity or track your execution life?
ActivityWatch automatically tracks device usage. TimeLens connects time with priorities, tasks, notes, habits, reviews, and AI context.
Article information
By TimeLens team. Published 2026-06-17. Updated 2026-07-07. The TimeLens team maintains product guides, comparison pages, newsletters, and template notes using current product behavior, pricing, policies, and release notes as source material. Author bio: TimeLens public articles are written by the product team from the current app, release notes, pricing data, policy docs, and support patterns so readers can compare tools against real behavior instead of generic productivity advice.
Choose ActivityWatch if
You want free, open-source, local activity tracking on your devices.
Choose TimeLens if
You want time tracking connected to planning, task context, habits, and weekly/monthly review loops.
The short version
If your current friction is narrow and specific to open-source activity tracker, ActivityWatch may be the right answer. It does well at free/open-source tracking, passive device activity capture, privacy-oriented local tracking, and that can be enough when the goal is to improve one part of your time tracking flow. TimeLens is for the moment after ActivityWatch still leaves the broader story scattered. You want plans, tasks, manual context, time blocks to keep teaching the next week what to protect, change, or stop repeating.
What ActivityWatch does well
Free/open-source tracking; Passive device activity capture; Privacy-oriented local tracking; App and website usage insights
Where TimeLens is different
TimeLens is broader than activity tracking. As you compare ActivityWatch with TimeLens, notice whether you are trying to improve a single workflow or recover the full time tracking execution trail. For ActivityWatch users, the important distinction is whether the day itself should become evidence for the next decision. TimeLens helps you ask: What did I plan?; What did I work on?; Which notes and links mattered?; Which habits happened?; What does my week or month mean?
Compounding work signals
Plans; Tasks; Manual context; Time blocks; Habits; Reviews; AI context
FAQ
Direct answers for this TimeLens article.
- Is TimeLens a replacement for ActivityWatch? Not always. Choose ActivityWatch if you want free, open-source, local activity tracking on your devices. Choose TimeLens when you want the surrounding compounding: what you planned, what happened, what slipped, and what should change next.
- What is the biggest difference between TimeLens and ActivityWatch? ActivityWatch is useful for free/open-source tracking and passive device activity capture. TimeLens is different because it connects planning with time, tasks, habits, notes, reviews, and AI-readable history.
- Can I use ActivityWatch and TimeLens together? Yes. Many founders keep a specialized tool for one workflow and use TimeLens as the place where the broader execution story comes together.
- Why does TimeLens call this compounding work? Because the goal is not just to store tasks or notes. The goal is to remember the relationship between plans, actual time, habits, context, decisions, and reviews so the next action gets easier to choose.
Device activity is not the same as execution clarity.
Use TimeLens when you want your time to connect back to priorities, habits, and decisions.
Related TimeLens reading
Continue through adjacent TimeLens articles for comparison, planning, and execution context.
All TimeLens comparison articles · Best daily planning apps for founders, operators, and busy professionals · I do not know what I should stop doing. · TimeLens vs Obsidian: sharpen your thinking or sharpen your execution?