Grindstone
Grindstone is an app for tracking time spent on work, with project tracking, offline tracking, and data export.
What Grindstone is
Grindstone is an app for tracking time spent on work, with project tracking, offline tracking, and data export. Its timer records a time slice when you begin a work item, and you can create an item by entering its name. When you return after leaving your computer, Grindstone asks how to handle the time away and adjusts the record. Custom properties can organize items with fields such as client lists. Filtered views can notify you when entries match their criteria, including reminders for due dates and estimates. View contents can be exported or copied to the clipboard, and the graph feature presents information as charts or tables. The free Grindstone app is available for Windows. 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. A 30-day trial is available. Sync Server can run on a customer’s network and requires Windows Server and SQL Server licenses.
Good
- Free app for time tracking
- Works offline and supports data export
- Filtered views can send reminders
- Sync adds team assignments and due dates
Watch out
- Desktop app is limited to Windows
- Sync Cloud is charged per active user
- Sync Server requires Windows Server and SQL Server licenses
Who it suits
Grindstone suits people who want to record work time and organize projects, including those who need offline tracking or exports. Teams can consider Sync for shared tracking and assignments.
Verdict
Grindstone covers individual work tracking, while Sync adds team workflows and administrator controls. The free app is a starting point; paid Sync plans have separate billing terms and team limits.
Plans and prices
From Grindstone's own pricing page, checked 11 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Grindstone | Free | Free app for time tracking |
| Grindstone Sync Cloud | $5 a month | One 30-day free trial per team · per active user, monthly |
| Grindstone Sync Server | $10 a month | Requires Windows Server and SQL Server licenses; customer hosts the server · per licensed seat |
The facts
Each one read from Grindstone's own pages, with the date it was checked.
What it does
- API
- Grindstone Sync includes a REST Web API, and administrators can create API keys for third-party access to team data.checked 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.checked 11 Oct 2026
- Cloud hosting
- Grindstone Sync Cloud is hosted in Microsoft Azure and managed and monitored by Epiforge technicians.checked 11 Oct 2026
- Custom fields
- Users can create custom properties, including list properties for items such as clients.checked 11 Oct 2026
- Data export
- Yeschecked 21 Sep 2026
- Offline tracking
- Yeschecked 21 Sep 2026
- Paid from
- 5checked 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.checked 11 Oct 2026
- Project tracking
- Yeschecked 21 Sep 2026
- Purpose
- Grindstone is a free app for keeping track of time spent on work.checked 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.checked 11 Oct 2026
- Security
- Grindstone Sync says passwords are secured with encryption, app connections can be revoked, and communications use SSL encryption.checked 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.checked 11 Oct 2026
- Support
- Epiforge lists tutorial videos, user manuals, a discussion forum, and specialist support as support options.checked 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.checked 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.checked 11 Oct 2026
Where it runs
- Desktop app
- Yeschecked 21 Sep 2026
- Windows requirements
- The Grindstone 4 manual lists Windows 7 SP1, Windows 8.1, Windows 10, and specified Windows Server versions as supported operating systems.checked 11 Oct 2026
Money
- Free plan
- Yeschecked 21 Sep 2026
The company
- Team features
- Grindstone Sync brings team time tracking together and supports assignments with due dates, estimates, and completion dates.checked 11 Oct 2026
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