✦ One-time purchase · No subscription

The Gantt chart app you
buy once and own.

A fast, powerful desktop Gantt chart app. Buy once, use forever — no subscription, no cloud, no monthly fee. Works fully offline, with your files on your own machine.

Get GanttOWN → See features

Mac · Windows coming soon · Works on SharePoint & network drives · PDF & Excel export

Features

Everything you need. Nothing you don't.

🖱

Drag & Drop Scheduling

Move and resize tasks visually. Dependencies cascade automatically when you shift dates.

⚡

Critical Path

Automatically highlights the tasks that determine your project end date — recalculated on every change.

◆

Milestones

Track key dates on the timeline. Flag overdue milestones and mark completions with a full audit trail.

📸

Baseline & Slip Tracking

Snapshot your original schedule. Ghost bars and slip badges show exactly where you've drifted.

🔒

Role-Based Access

PM and member roles with password protection. Members can update progress and request date changes.

📄

PDF & Excel Export

Print-ready PDF exports with critical path indicators. Excel exports include baselines, notes, and audit data.

📓

Project Log

A shared running log for the whole team. PM messages are visually distinguished from member entries.

📥

PM & Member Inboxes

On login, PMs and members each get a personal inbox — new notes, completed tasks, pending approvals, and resolved date requests, all in one place. See what changed without digging through the chart.

📊

Status Dashboard

A one-screen read on project health — total tasks, completion rate, schedule health, milestone status, and pending approvals at a glance. Know exactly where things stand without scrolling the chart.

🛡

Full Audit Trail

Every action timestamped and attributed — date changes, approvals, completions, even failed logins. A complete, PM-only record of who did what, and when.

📅

Workday Calendar

Schedule around real working days — turn weekends off and mark your own holidays and non-working days. Durations and dependency cascades respect your calendar, not just the raw dates.

🗂

Works Everywhere

A self-hosted, offline Gantt chart — open and save .gantt files on local drives, network shares, SharePoint, or OneDrive. No server required.

See It In Action

Built for real project teams

Full Gantt chart with milestones, dependency arrows, critical path, and today line — click to zoom

Drag-and-drop tasks with live dependency cascading

Task editor — assignee, dates, progress, dependencies, notes

PDF export — print-ready with full styling, critical path indicators, and baseline data intact

PM inbox — completed tasks, new notes, pending approvals on login

Member inbox — your tasks, PM messages, resolved requests

New activity flagged — PM notes, log entries, resolved requests

Members submit date change requests with reason — no direct edit access

PM sees pending requests with full context before approving

Approve or reject with a comment — member sees response in their inbox

Shared project log — PM announcements styled apart from member entries

Milestones tracked on timeline — mark complete with full audit trail

One-time license activation — enter your key, no account required

Set PM password and your project is locked and ready for your team

Existing projects are password protected — only the PM and assigned team members can open them

Dashboard — total tasks, completion rate, schedule health, milestone status, and pending approvals at a glance

Full audit log — every action timestamped and attributed. Failed logins, date changes, OOB acknowledgements, completions. PM-only access.

Who It's For

Built for teams tired of SaaS pricing

🏗 Construction

Track subcontractors, phases, and inspections without paying per seat every month.

💻 IT & Software

Sprint planning and release schedules that live in your repo alongside your code.

📣 Marketing

Campaign timelines and launch plans your whole team can view without needing an account.

🏢 Operations

Any team that needs a shared schedule without the overhead of enterprise project software.

Pricing

Pay once. Use forever.

Solo

For freelancers and small teams who just want to schedule — no roles, no approvals.

$49 one-time

Up to 5 team members

Full Gantt chart with drag & drop
Critical path & dependencies
Milestones & baseline tracking
PDF & Excel export
Task notes & comments
Up to 5 members — everyone edits directly, no approvals
Lifetime bug & security fixes (no new features)

Buy Solo — $49

Common questions

Does it really work without the internet?

Yes. GanttOWN is a native desktop Gantt chart app that works completely offline once installed. Your project files are saved locally — no cloud sync, no account required after activation.

Does GanttOWN ever need an online connection?

Only in two situations: when downloading updates, and when activating or deactivating a license. Everything else — opening, editing, and saving your projects — works entirely offline. So you'll want to be connected the first time you set up a license or move it to another machine, but your day-to-day work never needs the internet.

What does "one-time purchase" mean exactly?

You pay once and own the software. There are no monthly fees or renewal charges. Solo includes 12 months of updates. Team and Business receive all future feature updates as they're released — no additional cost.

Can my team collaborate on the same file?

Yes. Save your .gantt file to a shared network drive, SharePoint, or OneDrive. Team members open it directly — no server setup required. File locking prevents simultaneous edits.

What's the difference between the tiers?

The tiers differ in both team size and collaboration features. Solo supports up to 5 members and is ideal for individual PMs. Team (up to 20) and Business (up to 150) unlock the full collaboration suite — PM and member roles with separate passwords, member inboxes, date change request and approval workflows, PM-to-member messaging, project log, and a full audit trail.

Mac or Windows?

Mac is available now. Windows is in active development — join the waitlist and we'll email you the day it ships. Your license key will work on either platform, so buying today covers you for both.

What if I need help?

Email us at [email protected]. We're a small team and we actually respond.

Version History

Where GanttOWN is at

1.0 Launch

The first public release of GanttOWN — full drag-and-drop Gantt scheduling, critical path, milestones, baselines, role-based access, the audit trail, and PDF & Excel export.

1.0.1

Early post-launch fixes and stability improvements.

1.0.2

Scheduling and dependency-cascade refinements.

1.0.3

PDF & Excel export polish.

1.0.4

Inbox and approval-workflow improvements.

1.0.5

Workday calendar and date-handling fixes.

1.0.6

Licensing and activation refinements.

1.0.7 Current

The latest release — the most stable and polished GanttOWN yet.

Support continues for all tiers for the lifetime of the app.

The Gantt chart app youbuy once and own.