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Grindstone
What it is
Grindstone is a time-tracking app for recording work, with a free plan and paid team-sync options. Its timer starts a time slice for a work item, and users can create an item by entering its name. After a user returns from time away from the computer, Grindstone asks how to record that interval and adjusts the tracked time. Custom properties can hold details such as client lists. Filtered views can notify users when entries match their criteria, including reminders for due dates and estimates. Users can export view contents, copy them to the clipboard, or use graphs to create visual and tabular representations. Grindstone Sync adds team tracking and assignments with due dates, estimates, and completion dates. Sync Cloud costs $5 a month, billed monthly per active user, with one team per subscription. Sync Server costs $10 a month, billed monthly up front, with one team per server; it requires Windows Server and SQL Server licenses. A 30-day trial is available. The Windows manual lists Windows 7 SP1, Windows 8.1, Windows 10, and specified Windows Server versions as supported.
For and against
For
- Free app for time tracking.
- Works offline and supports data export.
- Custom properties can organize work items.
- Views can trigger due-date and estimate reminders.
- Sync includes assignments with dates and estimates.
Against
- Sync Cloud costs $5 a month per active user.
- Sync Server costs $10 a month.
- Self-hosting requires Windows Server and SQL Server licenses.
The verdict
Grindstone combines work timers, filtered views, and reporting, with Sync options for teams. Compare the Cloud and Server billing terms and requirements before selecting a team plan.
Who it suits
Grindstone suits individuals tracking work items and teams that need assignments, reminders, or shared time tracking. Its free app and 30-day trial give users ways to begin before choosing a paid Sync option.
Plans and prices
Grindstone
Free app for time tracking
Read 11 Oct 2026 · epiforge.com
Grindstone Sync Cloud
One 30-day free trial per team
Read 11 Oct 2026 · support.epiforge.com
Grindstone Sync Server
Requires Windows Server and SQL Server licenses; customer hosts the server
Read 11 Oct 2026 · epiforge.com
On the record
- API
- Grindstone Sync includes a REST Web API, and administrators can create API keys for third-party access to team data.support.epiforge.com · read 11 Oct 2026
- Away time
- When you return after leaving your computer, Grindstone asks how to record the time you were away and adjusts the recorded time.epiforge.com · read 11 Oct 2026
- Cloud hosting
- Grindstone Sync Cloud is hosted in Microsoft Azure and managed and monitored by Epiforge technicians.support.epiforge.com · read 11 Oct 2026
- Custom fields
- Users can create custom properties, including list properties for items such as clients.epiforge.com · read 11 Oct 2026
- Data export
- Yesepiforge.com · read 21 Sep 2026
- Desktop app
- Yesepiforge.com · read 21 Sep 2026
- Offline tracking
- Yesepiforge.com · read 21 Sep 2026
- Permissions
- Sync administrators can control whether members create, modify, or delete work items and properties, limit how late time slices can be edited, and restrict work item visibility by assignment.support.epiforge.com · read 11 Oct 2026
- Project tracking
- Yesepiforge.com · read 21 Sep 2026
- Purpose
- Grindstone is a free app for keeping track of time spent on work.epiforge.com · read 11 Oct 2026
- Reporting
- Users can export view contents or copy them to the clipboard, and the graph feature can create graphical or tabular representations.epiforge.com · read 11 Oct 2026
- Security
- Grindstone Sync says passwords are secured with encryption, app connections can be revoked, and communications use SSL encryption.support.epiforge.com · read 11 Oct 2026
- Self-hosting requirements
- Grindstone Sync Server can run on a customer’s own network and requires Windows Server and SQL Server licenses.epiforge.com · read 11 Oct 2026
- Paid from
- 5epiforge.com · read 21 Sep 2026
- Support
- Epiforge lists tutorial videos, user manuals, a discussion forum, and specialist support as support options.epiforge.com · read 11 Oct 2026
- Team features
- Grindstone Sync brings team time tracking together and supports assignments with due dates, estimates, and completion dates.support.epiforge.com · read 11 Oct 2026
- Time tracking
- The timer creates a time slice when you start working on a work item and can create a new work item from its name.epiforge.com · read 11 Oct 2026
- Views and reminders
- Views can filter tracked entities and notify users when entries meet the view’s filters, including reminders for due dates and estimates.epiforge.com · read 11 Oct 2026
