3 alternatives to Clockwise
Compare free and open-source solutions before building your own. Check each option’s license, setup, and limitations.
It auto-plans unlimited tasks for the next two weeks; priorities and dependencies are how the paid plan gets you.
LicenseFree, closed source
PlatformsIn the provider’s cloud
InstallationCreate a hosted account in the web app or install the iOS or Android app
ModelsA 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
Limitations compared to 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.
LicenseFree, closed source
PlatformsIn the provider’s cloud
InstallationCreate a hosted web account and connect one supported calendar; the web app can be installed to a home screen
ModelsA 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
Limitations compared to 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
Updated 2026-08-10 · no paid listings
| Tool | License | Setup | Platforms | Stars | Activity |
|---|---|---|---|---|---|
| FlowSavvy Free | Free, closed source | Hosted by the provider | web, ios, android | — | — |
| Reclaim Lite | Free, closed source | Hosted by the provider | web | — | — |
| Trevor AI Free | Free, closed source | Hosted by the provider | 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. If those points do not matter to you, the options above could save $81 per year.
Is there a free alternative to Clockwise?
Yes: FlowSavvy Free, Reclaim Lite, Trevor AI Free. This page lists 3 free or open-source options. Check the limitations of each.
Should I build my own Clockwise?
Our verdict: Worth subscribing. 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. The complete prompt is on the Clockwise page on Vibe Radar.
