Can I Code This?

Can I code RescueTime?

Automatic time tracking needs a background process watching which app or window has focus — a real OS-level integration, not a form to fill in. Once that data is flowing, the reporting on top is the easy part.

VIBE SCORE 89/100

how this is worked out

categorytime tracking
time to codea weekend
Borderline
their price$12/mo · $144/yr
last checked2026-08 · source ↗

Why CanICodeThis says Borderline

  • Once you have a stream of 'app X was focused from time A to time B', daily/weekly summaries are ordinary aggregation
  • Categorizing apps and sites into productive/distracting buckets is a lookup table you seed and refine
  • A simple 'time spent today' dashboard is standard charting

What you give up building RescueTime yourself

  • Reliably detecting the focused app/window across macOS, Windows, and Linux needs real OS-level integration work per platform
  • Their goal-setting and 'FocusTime' website-blocking features are a second product on top of raw tracking
  • Detecting idle time accurately (you stepped away but left a window open) takes real care to avoid overcounting

What you'd have to build

The parts this build actually needs, each rated on its own — the average is the Vibe Score above.

Landing page99
CRUD database95
OS-level integration72

How to build your own RescueTime

Build activity tracking with per-OS integration work, honestly scoped: 1. Once you have a stream of 'app X was focused from time A to time B,' daily/weekly summaries are ordinary aggregation. 2. Categorize apps and sites into productive/distracting buckets using a lookup table you seed and refine yourself. 3. A simple 'time spent today' dashboard — standard charting. That's a real, working time-tracking tool once you have the OS-level data feed. Out of scope: reliably detecting the focused app/window across macOS, Windows, and Linux, which needs real OS-level integration work per platform, and their goal-setting and website-blocking features, a second product on top of raw tracking.

What it actually costs to build

Two real costs, not just "free": the AI agent's own usage, and hosting once it's running. Both are estimated from this app's own effort rating and component list — see the assumptions on the method page.

AI agent — with a subscription (Claude Pro/Max, Cursor, etc.)$0 marginal
AI agent — pay-per-use API, no subscription$43–$86 one-time
Hosting, once it's running$0/mo (free tier)
Domain name, if you want your own~$12/yr

RescueTime costs $12/mo. Even paying per-token with no subscription, and accounting for hosting, this build pays for itself in about 8 months.

Open source RescueTime alternatives

Don't feel like building it? These are already made, open-source, and free.

ActivityWatch ↗Open-source, cross-platform automatic time tracker, built for exactly this.

Questions

Can I code RescueTime?

Borderline. Automatic time tracking needs a background process watching which app or window has focus — a real OS-level integration, not a form to fill in. Once that data is flowing, the reporting on top is the easy part.

How much does RescueTime cost?

RescueTime costs $12/mo (about $144/yr) as of 2026-08. That's what a working rebuild would save you.

What do I lose by building it myself?

Reliably detecting the focused app/window across macOS, Windows, and Linux needs real OS-level integration work per platform Their goal-setting and 'FocusTime' website-blocking features are a second product on top of raw tracking Detecting idle time accurately (you stepped away but left a window open) takes real care to avoid overcounting

Is there a free alternative to RescueTime I don't have to build?

Yes — ActivityWatch are open-source options worth trying before you build your own. Details are in the standard parts section on this page.

Similar products you could build

Closest matches on the register — ranked by the build parts they share with RescueTime, not just by category.

Harvesttime tracking · $13.75/moBorderlineClockifytime tracking · $3.99/moBuild itToggltime tracking · $9/moBuild itBonsaifinance · $25/moBorderlineExpensifyaccounting · $10/moBorderline

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