Plan every project stage, on time.
Arno Plan is a fast, focused Gantt app for architects. Build a programme around the RIBA Plan of Work, track the critical path, and export charts your clients are happy to present.
30-day free trial · No card required
Everything a programme needs. Nothing it doesn't.
Purpose-built for architectural practice, not bent out of a generic project tool.
Built around the RIBA Plan of Work
Structure programmes by work stage the way you actually think — Stage 0 to 7, with stages, groups, tasks and milestones nested exactly how your project runs.
A Gantt canvas that feels effortless
Drag to reschedule, resize to change duration, and watch dates recalculate on working days. Dependencies, float and the critical path update as you go.
Colour by stage, discipline or person
Recolour the whole programme in one click to show who owns what, which discipline is where, or how the stages sequence — perfect for team and client conversations.
Presentation-ready exports
Export crisp PDF, SVG or PNG sheets at any paper size, with legends, gridlines and your title block. Print a programme a client is happy to put on the wall.
Fee proposals from the programme
Turn the programme into a fee breakdown by stage, discipline or role — the schedule and the fee stay in step instead of living in separate spreadsheets.
Yours, on your desktop
A fast native app for macOS and Windows. Your files are plain .arnoplan documents on your own machine — no lock-in, no browser, no waiting.
Table on the left. Timeline on the right. Always in sync.
Edit dates in the table or drag bars on the canvas — either way the whole programme stays consistent. Collapse stages, filter tasks, and zoom from days to quarters without losing your place.
- Working-day scheduling with holidays & custom closures
- Dependencies, float and an always-current critical path
- Milestones, recurring markers and annotations
Simple plans for individuals and practices
Start with a 30-day free trial — no card required. Subscribe when you're ready.
Solo
For the individual architect running live projects.
Start free trial- Unlimited programmes
- Milestones, dependencies & critical path
- Fee proposals & templates
- 2 devices
- 1-month free trial
Group
For practices sharing programmes across a team.
Buy seats- Everything in Solo
- Shared team seats
- Central seat management
- 2 devices per seat
- Priority support
Custom
For larger teams or specific billing and contract needs.
Contact us- Volume seat discounts
- Annual or invoice billing
- Priority onboarding & support
- Bespoke terms
Prices in GBP. Billing & VAT handled securely by our reseller, Paddle.
Questions, answered
Which platforms does it run on?
macOS and Windows, as a native desktop app. Your licence covers 2 devices on the Solo and Group plans.
How do I try it before paying?
Download Arno Plan, create an account, and start a 30-day free trial straight away — no payment details needed. Build and export real programmes for the full 30 days; when the trial ends you choose whether to subscribe. Your files stay on your device either way.
How does billing work?
Nothing is charged during your free trial, and nothing is charged automatically when it ends — you decide whether to subscribe. Paid subscriptions are then billed monthly through our payment provider, Paddle, who handle payment and VAT securely.
Can my whole practice use it?
The Group plan is billed per seat at £15/seat/month. You manage seats centrally and add or remove team members from your account.
Where are my files stored?
Programmes are ordinary .arnoplan files saved on your own computer. Nothing is locked in a cloud you cannot reach.
How do I cancel?
From your account inside the app, in one click. Your plan stays active until the end of the current billing period. See our Refunds & Cancellation policy for details.
Draw the programme. Win the conversation.
Download Arno Plan and build your first programme in minutes.
Download Arno Plan