← All features
Gantt Chart
Gantt Chart

Gantt Chart

The core screen — task list on the left, colour-coded timeline bars on the right, synced scroll and a date ruler on top. A visual schedule built for the jobsite.

Drag & dropAuto-cascadeSub-tasks 5 levels deepSkips weekends & holidays
What it does
  • Unlimited tasks, sub-tasks nested up to 5 levels — indent and guide lines show the hierarchy, each row folds and expands.
  • Parent tasks auto-summarise their children's dates (or override manually), and roll up status: any child late turns the parent late; all done marks it done.
  • Create a linked task and turn on “auto-follow” — move one task and the whole chain reschedules itself, with cycle protection and connector lines drawn.
  • Schedules by working days, automatically skipping weekends and public holidays (both customisable per project).
  • Rich task fields: name, duration, start/end, status, trade, contact, colour (30 shades), parent, predecessor, follow toggle, add-to-todo toggle.
  • Save any project as a template (or build one) and apply it to new jobs — tasks auto-schedule from the start date. Templates stay on-device and use no quota.
How to use
  1. 1Tap a task to select it, tap again to open its edit page.
  2. 2The selected row expands into six quick buttons: drag handle, add sub-task, duration stepper (the whole chain re-plans), status, camera, and create a linked task.
  3. 3Long-press and drag to reorder, or drop a task under another to make it a sub-task (it inherits the parent colour).
  4. 4Cycle the status: Not started → In progress → Done (confetti + praise) → Overdue (bar turns red).
  5. 5Zoom the chart and switch the time scale between Day / Week / Month. Undo and redo up to 50 steps.
Watch & learn

Gantt Chart, in a two-minute walkthrough.

Video coming soon
New tutorials drop regularly — download the app to get started now.
In depth

A construction schedule that replans itself.

On a real build the schedule changes every week — a wet Monday, a late frame delivery, a subbie who can't start until Thursday. Construction Gantt is a construction scheduling app for iPhone, iPad and Mac that treats change as normal: link your tasks once, and when one moves, everything after it reschedules automatically, skipping weekends and the public holidays for your country and state.

Plan a whole house build in an afternoon

Break the job down the way you actually build: site works, slab, frame, roof, lock-up, fit-out — with sub-tasks nested up to five levels. Parent stages summarise their children's dates automatically, and status rolls up on its own: if waterproofing runs late, the whole wet-areas stage shows late; tick the last task and the stage completes. When the job is done, save it as a template and start the next knockdown rebuild or renovation from it — the new job schedules itself from its start date.

Run it from the site, not the site office

Everything is sized for a thumb on a phone. Tap a task and six quick buttons appear: drag, add sub-task, a duration stepper that re-plans the whole chain, status, camera and link. Long-press to reorder or nest. Fifty steps of undo mean no change is scary. And because the app is offline-first, a black spot on site never stops you — changes save on the device instantly and sync when you are back in coverage.

Made for builders, subbies and owner-builders

If you run residential jobs — new builds, extensions, renovations — this is a building schedule app sized for your crew, not enterprise software with a training course. Owner-builders planning their first build get the same automatic rescheduling the pros use, free to start: the Free plan includes 2 projects and 200 tasks, no card required.

More features

Explore the rest of the app.

Try Gantt Chart yourself.

Free on the App Store. iPhone, iPad & Mac.

Download on theApp Store