A start/stop timer tagged to a project, saved as a row in a table, is about as simple as this register gets. The reporting on top is a handful of grouped queries. This is a genuinely easy evening.
VIBE SCORE 95/100
The parts this build actually needs, each rated on its own — the average is the Vibe Score above.
| Landing page | 99 |
| CRUD database | 95 |
| User login | 92 |
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 | $16–$27 one-time |
| Hosting, once it's running | $0/mo (free tier) |
| Domain name, if you want your own | ~$12/yr |
Toggl costs $9/mo. Even paying per-token with no subscription, and accounting for hosting, this build pays for itself in about 3 months.
Don't feel like building it? These are already made, open-source, and free.
Build it. A start/stop timer tagged to a project, saved as a row in a table, is about as simple as this register gets. The reporting on top is a handful of grouped queries. This is a genuinely easy evening.
Toggl costs $9/mo (about $108/yr) as of 2026-08. That's what a working rebuild would save you.
Their browser extension and idle-detection features add real polish beyond the raw timer Team-wide reporting and billable-rate calculations across a company are more than solo use needs Integrations with a dozen other tools (auto-start a timer from your calendar) are per-integration work
Yes — Kimai are open-source options worth trying before you build your own. Details are in the standard parts section on this page.
Toggl compared directly against the products people actually weigh it up against — same build questions, different answers.
Curated sets Toggl appears in.
Closest matches on the register — ranked by the build parts they share with Toggl, not just by category.
Browse all finance tools · every comparison · how scoring works · the full register
An occasional email when new apps get reviewed — the verdict, the effort, and what changed. No tracking pixels, no drip sequence, one click to leave.