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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 it in action → See features
Mac · Windows coming soon · Works on SharePoint & network drives · PDF & Excel export

🖥 GanttOWN is a desktop app for Mac. Have a look around. When you're ready, open this page on your Mac to grab it.

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

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.

Have a browse. GanttOWN runs on Mac, so head there when you're ready to buy.

Solo
For freelancers and small teams who just want to schedule, with no roles and 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
Most Popular
Team
For small to mid-size project teams.
$149 one-time
Up to 20 team members
  • Everything in Solo
  • Up to 20 members with role-based access
  • PM & member roles with separate passwords
  • Member inboxes: task summaries on login
  • Date change requests & PM approval workflow
  • PM-to-member messaging via task notes
  • Project log: shared running team journal
  • Full audit log of every action
  • Future feature updates included
  • Priority support
Buy Team · $149
Business
For larger teams and organizations.
$299 one-time
Up to 150 team members
  • Everything in Team
  • Up to 150 members across projects
  • Department-wide deployment ready
  • PM & member roles with full access control
  • Date change requests & approval workflows
  • PM-to-member messaging via task notes
  • Project log & full audit trail
  • Future feature updates included
  • Priority support
Buy Business · $299
SoloUp to 5 people
$49
TeamUp to 20 · most popular
$149
BusinessUp to 150 people
$299

One-time purchase, no subscription. Team & Business include all future updates. The full feature breakdown and checkout live on your Mac.

🛟
Not sure GanttOWN is for you? Try it risk-free.

Every purchase comes with a full refund window of 14 days. Buy it, put it to work on a real project, and see if it fits how your team actually plans. If it isn't the right tool for you, just email [email protected] and we'll process your refund within 24 hours. No forms, no questions, no hassle.

Solo includes 12 months of updates · Team & Business receive all future updates · Secure checkout via Lemon Squeezy · Instant download after purchase
🪟 Windows Version

Mac users are already owning their schedules.

GanttOWN for Windows is in the works. Drop your email and we'll notify you the day it drops. No spam, just one email.

No spam · One email when Windows ships · Unsubscribe anytime
FAQ

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, at 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.
Is there a trial, or can I get a refund?
Instead of a limited trial, you get the full app with a 14-day refund window. Buy any tier, use every feature on a real project, and if it isn't right for you, email [email protected] within 14 days. We process refunds within 24 hours, no questions asked.
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
Stability and polish across the board.
1.0.8 Current
The latest release, the most stable and polished GanttOWN yet.

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