MacLenz compared with other Mac time trackers
The right time tracker depends on what you need from it. This page sets MacLenz beside five others using what their own websites say, checked on . Where another app does something MacLenz does not, I say so.
The short version
MacLenz is free, keeps everything on your Mac and answers one question: where did my day go, and how much of it was productive? It has no goals, streaks, scores or AI insights, and it does not write invoices.
If you bill clients by the hour, Qbserve or Timing fit that job better. If you want an open source tracker that also runs on Windows and Linux, ActivityWatch is built for that. If you want a free Mac tracker that needs no account and sends nothing anywhere, that is what MacLenz is for.
Side by side
| App | Platforms | Price | Where the data lives | What it tracks | Also worth knowing |
|---|---|---|---|---|---|
| MacLenz | macOS 15 or later (Apple Silicon and Intel) | Free | On your Mac only. No account. | Apps, windows, browser tabs, YouTube videos and projects, automatically. Sorted into productive, neutral and distracting time by category. | Live RAM, SSD and CPU monitor and an optional optimizer. No goals, scores or invoices. |
| ActivityWatch | Windows, macOS, Linux and Android | Free and open source (MPL-2.0) | Local. Its site says data is never sent to a server. | Active application and window title out of the box. Browser extensions add the active tab, and editor plugins are available. | Usage can be broken into categories you set up. |
| Qbserve | macOS | One-time purchase, no subscription. 15-day free trial. | Local. Its site says tracked data is never sent anywhere. | Sites, apps and games (it states over 8,100), project time from open documents and web pages, Slack teams and YouTube videos. | A productivity score in the menu bar, goal alerts, timesheets and invoices in 18 languages. |
| Timing | macOS | Paid. Its site lists Timing Professional at $10 a month. 30-day free trial. | Local by default, with optional cloud sync. | Apps, websites and documents, plus chat, calendar and meeting apps. | Productivity scoring by project, AI summaries, and export to PDF, XLSX, CSV and HTML. |
| Memtime | Mac, Windows and Linux | Paid per user. 14-day free trial. | Local only. Its site says data is never stored on a server. | Programs, documents, emails, browser tabs, and video calls and meetings. | Timeline view, and more than 100 integrations with project tools. |
| RescueTime | Windows and Mac, with iOS and Android apps | Paid after a two-week free trial. | Cloud. Activity data goes to its servers and an account is required. | Apps and websites, with time logged by project, client and task. | Goals and alerts, focus sessions that block distracting sites and apps, and detailed reports. |
How they differ in practice
ActivityWatch
It is the closest to MacLenz on price and privacy: free, and local. The difference is reach and approach. ActivityWatch runs on more systems and is open source, which suits people who want to inspect or extend it. MacLenz is a single polished Mac app that sorts your time into productive, neutral and distracting for you.
Qbserve
Qbserve is stronger when time turns into money. It makes timesheets and invoices, scores your productivity in the menu bar and alerts you about goals. It is a one-time purchase, and MacLenz is free, but MacLenz does not do invoicing.
Timing
Timing is a paid Mac app aimed at project and client time, with summaries and exports. Its data is local unless you turn on sync. It costs more than MacLenz and does more around projects and reporting.
Memtime
Memtime also keeps data on your device and works across Mac, Windows and Linux, with many integrations into project tools. It is paid per user after a trial.
RescueTime
RescueTime is the cloud option here. It needs an account and sends activity data to its servers, and in return it offers goals, alerts and focus sessions that block distractions. If you want your data to stay on your Mac, it is the wrong fit; if you want blocking and goals, MacLenz doesn't offer them.
Where MacLenz fits
Choose MacLenz if you use a Mac, want to see honestly how your days go, and would rather not create an account or send your activity to anyone. It also watches your Mac's memory, storage and processor, which none of the apps above set out to do. Choose one of the others if you need invoicing, goals and scores, or support for Windows or Linux.
See what MacLenz does and download it
Sources
- ActivityWatch, read on 2 October 2026
- Qbserve, read on 2 October 2026
- Timing, read on 2 October 2026
- Memtime, read on 2 October 2026
- RescueTime, read on 2 October 2026
- MacLenz, from its own page