The Page
01
Type plain text. Get a screenplay.
Slugs, dialogue, parentheticals, transitions. They format themselves while you write. No compile button. No preview pane. Just the page you'll send.
Lucerna
by Luminos Film
Private beta. TestFlight invite only.
The page,
the plan, the set,
under one light.
A native macOS suite for screenwriters and the productions they ship. Live Fountain editor. Drafts that never overwrite. Breakdown, stripboard, shot list, call sheet, budget. All from the page you wrote. You pay once. It lives on your Mac. Nobody bills you again next month. Nobody indexes your script to improve their model. Nobody holds your files hostage when you stop paying.
03 / 06
What's inside
One quiet app. From the first sentence to the last shooting day.
The Cast
02
Characters, locations and props. Already sorted.
Mention someone in a scene and they get their own page. Open Elena, see every line she speaks. Open the silver lighter, see every scene that needs it on the truck.
Alternatives
03
Try the other ending. Keep this one.
Spin off an alt ending, a different cold open, a new act break. Two versions side by side until you decide which one wins.
History
04
Every draft kept. Every revision named.
Bookmark any version of your script and come back whenever. Compare two drafts side by side. Restore yesterday's ending in one click.
✦ Cold open · 14 May, 11:42
✦ Marco reveal · 12 May, 18:03
Today · auto-saved 52s ago
Insights
05
Know how your script paces.
Minutes per character. Scene economy by act. Where the dialogue tightens and where it sags. Numbers that mean something. Glance at them, ignore them. Your call.
Yours alone
06
Your script lives on your Mac.
Open it on a plane, write in the woods, lock the file when you ship it. iCloud sync is opt-in, encrypted, only between your own devices. We don't see a word of it. We didn't want to.
The Stripboard
07
Schedule from the script you already wrote.
Strips colour-coded by INT/EXT and day/night. Drag them into shoot days. Cast call, props list, daily breakdown. They follow. Change one, the rest update.
On Set
08
Sunrise, sunset and golden hour. For every location.
Pin a location and Lucerna works out the light, the weather window, the magic hour. The call sheet writes itself, with the right times for the right addresses.
Scouting
09
Every location. Photographed and assessed.
Address, photos, contacts, pros and cons. Track each spot from "to visit" to "scouted" to "approved" to "permits in hand". All in one place.
The Ledger
10
Above the line, below the line, contingency.
Budget by section, by department, by line item. Estimate and actual side by side. Contingency is a slider. See the impact before you commit.
02 / 06
Four windows. One document.
Same project, four angles.
One app, four modes. Switch in the corner and the script you wrote becomes the storyboard you direct, the strip you schedule, the call sheet you shoot.
EditorLive formatting on the page. What you write is what you ship.
OutlineThree acts, scene density, page count. At a glance.
ScenesCards on a board. Drag, group, search across the whole script.
StatsMinutes per character, scene economy, pace per act.
BreakdownCast, props, costumes, vehicles, FX. All pulled from the page.
StoryboardFrame the script with images, lenses, movement notes.
Shot listLens, angle, movement, duration. Anchored to the scene.
References & ContinuityBuild the visual language. Track every match.
StripboardStrips coloured by INT/EXT and day/night. Drag to schedule.
DOODDay-out-of-days for cast, props and locations.
Cast & CrewActors, agents, deals, departments, contacts.
Budget & ReportsAbove the line, BTL, post, contingency. Live totals.
Call sheetDay, scenes, cast, crew call, sunrise. Writes itself.
Today's shotsShot list filtered to the day. Tick them as you cover them.
Weather & SunSunrise, sunset, golden hour, blue hour. Offline.
Continuity & DailyWraps the day. Feeds tomorrow.
04 / 06
From script to set
The producer's window is the writer's window, turned ninety degrees.
Lucerna keeps the script and the production inside the same document. Cast, props, locations and scene economics flow out of the page automatically. No spreadsheet. No exports. No second tool.
The Stripboard
Drag your shoot into shape.
Strips coloured by INT/EXT and day/night. The daily breakdown writes the cast call.
The Ledger
Budget that lives with the script.
Above the line, BTL, post, contingency. Estimate against actual, in real time.
The Call
Call sheet, auto-assembled
Scenes scheduled for the day, cast pulled from the breakdown, sun and weather computed locally.
The Day
Today's shots, ready to tick
Filtered shot list for the current shoot day. Tick each frame as it gets covered.
The Map
Scouting, pending to permitted
Each location has an address, photos, contacts, pros and cons, and a permit status.
05 / 06
Pricing. Pay once. It's yours.
Two prices. You pay once. You own it. If you were expecting a monthly/annual toggle, wrong tab.
The subscription model is a business decision dressed up as a service. You pay forever. They keep the files. You stop paying, the files get complicated. We built Lucerna because we were tired of that deal. You buy it once. It lives on your machine. If we stop existing tomorrow, your script is still there.
Tier 01
Lucerna · Screenplay Only
Write the script. Own every word. No second screen, no cloud login, no monthly invoice in your inbox.
€79
one time
- ✓Fountain editor with live formatting and pagination
- ✓Story branches, bookmarks, full draft history
- ✓Outline, scene list, narrative statistics
- ✓Characters, locations and objects, tracked automatically
- ✓PDF export, Final Draft import, iCloud sync
- ✓Unlimited projects on this Mac
macOS 26 Sequoia · Apple silicon
Tier 02
Full Suite
Lucerna · Screenplay & Production
The full suite. From the first sentence to the last shooting day.
€200
one time
- ✓Everything in Screenplay, plus the full production suite
- ✓Automatic scene breakdown: props, wardrobe, vehicles, FX, cast
- ✓Stripboard scheduling with drag-and-drop shoot days
- ✓Budget builder with line items, fringes, cost tracking
- ✓Call sheets, shot lists, continuity, daily reports
- ✓Cast pipeline: casting, contracts, availability, contacts
- ✓Crew management, department rosters, deal memos
- ✓Locations scouting with photos, permits, logistics
macOS 26 Sequoia · Apple silicon
Already on Screenplay Only? Upgrade to Screenplay & Production for €121. That is €200 minus €79. We don't charge upgrade fees that aren't math. Coupon in your App Store receipt.
06 / 06
Technical
Built for the hardware
screenwriters already own.
Native Swift, Apple silicon, no Electron. Lucerna runs cool on a base MacBook Air and stays out of the way of the only thing that matters: the page.
Platform
macOS 26 Sequoia. Apple silicon (M1 or newer).
Memory
8 GB minimum. 16 GB recommended.
Storage
~280 MB app. About 5 MB per feature-length script.
Languages
English · Italiano · Français · Deutsch · Español
Project file
.lucerna. A single bundle on your Mac.
Imports
Final Draft (.fdx) · Fountain (.fountain) · plain text
Exports
PDF with industry pagination, real title page · Fountain · Final Draft
Sync
iCloud. Encrypted end to end. Only between your own devices.
Drafts
Every revision kept. Bookmark, compare, restore. Automatic.
Privacy
Yours alone. No account. No tracking. No telemetry.
Distribution
Mac App Store. Apple handles billing and refunds.
Open formats
Fountain · industry-standard PDF · Markdown notes
·
By Luminos Film
We make films and software. Lucerna is the tool we kept not finding. So we stopped looking and built it.
·
TestFlight invite
Get the
invite.
Lucerna is in private beta. Drop your email and tell us what you write. Invites go out in weekly batches. We use the address once: to send you the invite. We don't sell it, share it, analyse it, or run it through a "partner ecosystem". It goes in a file. We email you. That's the whole relationship.
No spam. No drip campaign. No "data partners". No remarketing pixel. Hosted in the EU. Your email is not a product.
Questions, before you ask.
- A native macOS app for screenwriters and the productions they ship. Live Fountain editor. Breakdown, stripboard, shot list, call sheet, budget, scouting. One app, one purchase, runs on your machine. No account required to open your own script.
- Yes. One price, one time. €79 for Screenplay Only, €200 for the full production suite. You buy it, you own it, nobody charges you again next month. We know that feels disorienting. You have been trained to expect a subscription. The entire industry spent a decade teaching you that software is a service you rent rather than a thing you own. That arrangement is good for shareholders. It is not good for you. We are on the other side of that argument. Upgrade from Screenplay to the full suite later and you pay the difference: €121. That is €200 minus €79. No upgrade fee on top of the math.
- On your Mac. Not in our cloud. Not on a server farm you have never heard of in a country you did not choose. Your file, your disk, your machine. iCloud sync is opt-in and runs between your own devices, encrypted. We have no server. We have no access. We literally cannot read your script. Some people ask if that is actually secure. That question assumes centralised storage with a company you have to trust indefinitely is the safe default. It is not.
- Yes. Final Draft and Fountain files come in directly, and Lucerna exports to industry-standard PDF with proper pagination and a real title page. Your scripts stay portable. Nobody is locking you in.
- Co-writers can collaborate live through encrypted iCloud sync. Only the people you invite see the project. Producers, script supervisors and ADs can be given read-only access to specific scenes or breakdowns, so nobody has to flatten everything to a PDF.
- No. Every draft, every revision, kept automatically. Bookmark the version you love, branch a what-if, compare two drafts side by side, restore the ending you deleted three weeks ago. All without leaving the editor. Losing weeks of work to one careless save is not a technical limitation. It is a product decision. Most writing apps made it because version history is harder to build than a single save button. We built it anyway.
- macOS 26 Sequoia or newer on any Apple silicon Mac (M1 and up). Native Mac app: quick to launch, kind to your battery, silent on a base MacBook Air.
- We use Lucerna every day at Luminos to write our own films. That said, it's a TestFlight beta. We ship updates weekly and we expect feedback. That's why we're picky about invitations.
- Drop your email in the form above. Invitations go out in weekly batches. Working screenwriters and production companies first, but solo writers and students are welcome. Just tell us a sentence about what you're working on.