Guide
Automatic time tracking for Mac, without the timers
You will never remember to press start. Automatic trackers watch for you - here is how the technology works, what it costs, and how to keep it private.
Why manual time tracking fails
Every timer-based tracker depends on you remembering to start and stop it. Miss either step and the record develops gaps that you have to reconstruct later. Automatic tracking removes that manual step: the computer observes, and you read the results.
The two kinds of automatic tracking
1. App and window logging
Most automatic trackers - Timing, Rize, RescueTime, ActivityWatch - record which app and window title is in front. It is efficient and battle-tested, but it sees labels, not meaning: three hours of "Chrome" could be research, procrastination, or both, and the tracker cannot tell.
2. Screen understanding
Dayflow takes the second approach: it records your screen at one frame every 10 seconds and has AI summarize each 15-minute block into plain language. The result is a visual work journal that captures the task context an app name alone cannot explain.
Dayflow is the only tracker on this page that is fully automatic, AI-powered, open source, and free. Full recordings stay on your Mac. Local AI keeps analysis on-device, while BYO cloud providers and Dayflow Pro can receive selected screenshots for analysis.
How Dayflow does it
- Capture: one frame every 10 seconds, compressed and stored only on your Mac. About 100MB RAM and under 1% CPU.
- Understand: every ~15 minutes, AI turns the frames into a summary. Run it fully offline with a local model (Ollama, LM Studio), bring your own Gemini, ChatGPT, or Claude key, or let Dayflow Pro ($16/mo annual) handle the AI with zero setup.
- Read: your day becomes a visual timeline with narrative summaries - a readable account of where your time actually went, for accountable mornings, one-click status updates, and honest retrospectives.
- Control: pause from the menu bar any time, automate with Shortcuts, delete anything from your local folder. The whole app is MIT-licensed open source with 6,900+ stars on GitHub.
Picking the right automatic tracker
| If you want | Use | Price (July 2026) |
|---|---|---|
| A readable journal with local AI available | Dayflow | $0 |
| Invoiceable per-project hours | Timing | From ~$10/mo |
| Focus scores and coaching | Rize | From $9.99/mo annual |
| Distraction blocking | RescueTime | From $7/mo annual |
| Raw activity data on every OS | ActivityWatch | $0 |
Deeper dives: the full 8-app Mac roundup, RescueTime alternatives, Rize alternatives, Timing alternatives, and ActivityWatch vs Dayflow.
Frequently asked questions
How does automatic time tracking work on a Mac?
Two approaches exist. Metadata trackers (Timing, Rize, RescueTime, ActivityWatch) log which app and window is active and build charts from that. Dayflow instead records the screen itself at one frame every 10 seconds and has AI summarize what was actually happening every 15 minutes - which is how it can tell "researching on YouTube" from "watching cat videos" when both are just "Chrome" to a metadata tracker.
Does automatic time tracking slow down your Mac?
Not meaningfully, if the app is built well. Dayflow uses about 100MB of RAM and under 1% CPU while recording. Choosing local AI for analysis is more demanding (it uses your GPU during summarization), so plug in for long fully-offline sessions; cloud analysis keeps the load near zero.
Is automatic time tracking private?
It depends on where capture and analysis happen. RescueTime, Rize, and Toggl process activity in their clouds. Dayflow keeps full recordings on your Mac and keeps analysis on-device with Ollama or LM Studio. If you use a BYO cloud provider or Dayflow Pro, selected screenshots can be sent to that service for analysis. The open-source Mac client shows local storage and outbound network behavior; the privacy policy covers cloud retention.
Can I pause automatic tracking?
In Dayflow, yes - start and stop recording instantly from the menu bar, or automate it with Shortcuts via deeplinks. You can also delete any recordings and data from your local folder at any time.
What does automatic time tracking cost?
The commercial trackers run $7 to $29 per month (RescueTime from $7/mo, Rize from $9.99/mo, Timing from ~$10/mo, all billed annually, as of July 2026). Dayflow and ActivityWatch are free and open source. Dayflow has an optional Pro plan ($16/mo annual) that handles the AI for you.
Stop guessing where your time goes
Dayflow tracks automatically and keeps full recordings on your Mac. Choose local AI for on-device analysis.
Download for MacOS macOS 14+ · free & open source · no account required