Clockwise alternatives: 3 free & open-source picks
Compare recorded free and open-source options, their capabilities and operating requirements. Source dates are shown below; licenses, hosted limits and project activity can change.
It auto-plans unlimited tasks for the next two weeks; priorities and dependencies are how the paid plan gets you.
licenseproprietary, free
runstheir cloud
installCreate a hosted account in the web app or install the iOS or Android app
enginesA deterministic scheduling algorithm; FlowSavvy explicitly says it does not use machine learning to build schedules
dataTasks, events, and settings live in FlowSavvy's cloud database and synchronize with connected Google, Outlook, or iCloud calendars; the service currently provides no general calendar import or export
the catch vs ClockwiseFlowSavvy optimizes one person’s tasks and events, not the team-wide meeting negotiation and shared focus-time coordination Clockwise provided before shutting down.
setupRequires an internet connection; calendar synchronization requires OAuth or app-specific credentials
facts verified 2026-08-10
The free solo plan moves focus, habits, breaks and meetings around; the planning horizon is one week.
One calendar gets task-to-time-block planning and some AI suggestions; multiple calendars and deeper automation cost extra.
licenseproprietary, free
runstheir cloud
installCreate a hosted web account and connect one supported calendar; the web app can be installed to a home screen
enginesA private per-user deep-learning scheduling model; some language features use OpenAI, according to Trevor's documentation
dataTasks, calendar events, and scheduling state are processed and stored in Trevor's hosted infrastructure, with connected calendar data synchronized through provider APIs
the catch vs ClockwiseTrevor schedules one person’s tasks around one calendar but does not optimize meetings and focus blocks across an organization as Clockwise did.
setupNo native desktop or mobile app; calendar integrations require OAuth, and the free tier is limited to one calendar account
facts verified 2026-08-10
latest recorded source check 2026-08-10 · check current terms at the source
| tool | license | running it | platforms | stars | active |
|---|---|---|---|---|---|
| FlowSavvy Free | proprietary, free | they host it | web, ios, android | — | — |
| Reclaim Lite | free (closed) | they host it | web | — | — |
| Trevor AI Free | proprietary, free | they host it | web | — | — |
People still pay for Clockwise because people pay because one double booking or missed invite can cost more than years of subscription fees. The recurring cost buys OAuth refresh, webhooks, timezone databases, race conditions, reminders, deliverability, privacy, and uptime, not just the visible interface. The recorded subscription totals $81 a year before any costs of an alternative.
Questions about these alternatives
Is there a free alternative to Clockwise?
Yes: FlowSavvy Free, Reclaim Lite, Trevor AI Free. These are recorded free or open-source options. Compare their feature limits, licenses, hosting costs and current availability before choosing.
Should I just build my own Clockwise?
Our verdict is NOT REALLY. A consolation build is possible, but the paid product's decisive value sits outside a solo rebuild. For Clockwise, rearrange flexible holds around fixed meetings for one user's calendar. The hard boundary is organization-wide optimization, calendar graph, team adoption, and conflict safety, plus calendar integrations and reliability. Review the scope, implementation prompt and trade-offs in the Clockwise build guide.
