ydemosStart free demo

Make → Share → Refinefor agencies that pitch

Brief this morning.Demo this afternoon.

  1. Brief submitted, then nobody steers it
  2. Completion gate passed
  3. Live on demo.cedarline.studio
  4. The client opens it and marks it up

Your Demos turns one client brief into a complete, working demo in about four to five hours. You write it once and walk away. No prompting, no revision rounds, no meetings.

Start your free first demoWatch the 80-second film

$299 per demoFirst demo freeNo subscriptionSee how it works

Example run · Cedarline Digital · Fitness Studio Booking App

Feedback inbox 0
New brief✓ Ready to submit
Fitness Studio Booking App
A booking app for Northstar Movement Studio that lets members find fitness classes and manage bookings, gives instructors their rosters, and lets studio admins manage classes and sessions.
Studio AdminInstructorMember
BR-01Members browse the class schedule and open class details
BR-02Class details show class, instructor, schedule and capacity
BR-03Members book a class session and view their bookings
Devon Park · 09:12Submit brief and start build

Submitted 09:12 · run_7Q2K · walk away

Build TimelineSimulated
09:12Estimated delivery in about 4h 30m; allow up to 5h
  1. Intake & requirements
  2. Strategy & blueprint
  3. Brand ∥ UX flows
  4. Build plan
  5. Working app & seed
  6. Verify & repair
  7. Package & preview

13:41 · Completion gate passed · 3 role logins verified

DeliveryNorthstar Movement Studio (fictional)
  1. 01Strategy & blueprintVerified
  2. 02Brand systemVerified
  3. 03Logo (SVG)Verified
  4. 04Landing pageVerified
  5. 05UX flowsVerified
  6. 06WireframesVerified
  7. 07Build planVerified
  8. 08Working appVerified
  9. 09File bundleVerified

9 / 9 deliverables · ZIP bundleReview and share

demo.cedarline.studio/k7f2q
AI-generated demo; discuss it with Cedarline Digital.
Schedule · My bookings

THURSDAY

CX-Pen · new14:13 · Unreviewed
Show remaining spots on each class card.
ScheduleClass card · Vinyasa Flow

Playing the golden example run: one brief, about 4.5 hours of build compressed into seconds.

  • Not a design tool
  • Not an AI chat builder
  • Not production software

The step before Figma, Lovable, Cursor or a dev team.

The pitch problem

Clients struggle to say yes to documents and pictures.

Getting from a client's idea to something they can react to takes weeks of workshops, mockups, proposals and back-and-forth. Most of it is unpaid pitch work, done before you know whether the prospect will go ahead.

The usual routeweeks

Weeks of speculative work

  1. wk 1Discovery workshop and notes
  2. wk 2Mockups and a proposal deck
  3. wk 3Back-and-forth on pictures nobody can click
  4. wk 4“Let us think about it.”
With ydemosone day

One brief, then something real

  1. Write one brief: what it does, who uses it, the must-haves, how it should look
  2. Walk away while it builds, in about four to five hours
  3. Review it, then share it on your own link
  4. Your client clicks, circles and comments. The next meeting is about something real.

How it works · one real run

Make. Share. Refine.

Brief in, demo out. Your client marks up what they want. Here's one real run, using Cedarline Digital's brief for a fitness studio's booking app.

Watch it as an 80-second film

01 · Make

One structured brief. No prompting.

A short form, not a chat. You say what the app does, who uses it, the must-have features and how it should look. Then you submit and walk away. Nobody will ask you questions mid-build.

  • Each must-have becomes a traceable requirement (BR-01, BR-02…)
  • Reference links guide the look and are never treated as instructions
  • The submitted brief can't be changed while its run is active
New brief✓ Ready to submit
Fitness Studio Booking App
A booking app for Northstar Movement Studio that lets members find fitness classes and manage bookings, gives instructors their rosters, and lets studio admins manage classes and sessions.
Studio Admin Instructor Member
BR-01Members browse the class schedule and open class details
BR-02Class details show class, instructor, schedule and capacity
BR-03Members book a class session and view their bookings
+ BR-04 – BR-06
Welcoming, calm, contemporary. Clear class cards, readable schedules. No real studio's brand assets.
Devon Park · Cedarline Digital

02 · Make

A build you can watch, but never have to steer.

Seven phases run unattended. Each one shows its status, the requirements it covers and a preview once that preview has passed validation. If something goes wrong we say so plainly. We don't fake a finish.

  • Email when it starts, if it's blocked or fails, and when it's ready. Not at every step.
  • “Complete” means the completion gate passed: every deliverable present, every must-have traced, the app runs, every role logs in
  • Standard build time is about four to five hours. It's not a guarantee for every brief.
Run · Fitness Studio Booking AppEstimated delivery in about 4h 30m; allow up to 5h
Intake & requirement normalization 15mBR-01–06✓ Complete
Strategy & product blueprint 25mBR-01–06✓ Complete
Brand ∥ UX flows & wireframes 40mBR-02 · BR-03✓ Complete
Build plan 15mBR-01–06✓ Complete
Working app & fictional seed data 110mSEED✓ Complete
Self-verification & repair 40m3 roles✓ Complete
Packaging & private preview 25m9 / 9✓ Complete
13:41 · Completion gate passedPrivate preview only
■ BLOCKED, if it happens

“Instructor demo login failed after two repair attempts. Evidence attached. This run isn't complete and nothing can be shared.” That's what you'd see. Never a fake green tick.

03 · Share

Your link. Your brand. Your call.

You review the package, confirm a five-point checklist and then switch the link on. The demo goes live on your own verified domain, fully white-labelled. Your client needs no account and sees no ydemos branding.

  • Sharing stays off until the domain is verified and HTTPS is ready. There's no fallback URL.
  • Your client sees a neutral notice: “AI-generated demo; discuss it with Cedarline Digital”
  • Walk through it together live, or let them explore in their own time
Pre-share checklistReady to share
Brief fidelity · every BR traced to a screenVerified
White-label integrity · no ydemos marksVerified
Role logins & permissions · 3 of 3Verified
Fictional seeded dataSEED
Claims & source traceabilityVerified
demo.cedarline.studio · HTTPS ready● Link live
demo.cedarline.studio/k7f2q
AI-generated demo; discuss it with Cedarline Digital.
Enter as Member · Instructor · Studio Admin

04 · Refine

Feedback pinned to the exact screen and element.

Your client clicks any part of the app, circles or draws on it, adds a note and sends it, live or in their own time. You get the note with its exact location and, if they agreed to analytics, what they looked at.

  • Notes are for your review. They never trigger an automatic edit or rebuild.
  • View stats are collected only after the client agrees, and declining never blocks the demo
  • Sessions stay anonymous. We never guess who someone is.
Feedback inboxCedarline Digital
CX-Pen · Functionality request14:13 · Unreviewed
Show remaining spots on each class card.
Screen · ScheduleElement · Class card · Vinyasa FlowSession · anonymous
14:02Opened
11m 40sTime in demo
6Screens viewed
You decide what this note means and what happens next.

The film

One pitch day, in 80 seconds.

Watch Cedarline Digital's brief become a working, white-labelled demo, and the client's first CX-Pen note land in the inbox. Drawn from the real product screens.

  1. 0:00The pitch problem
  2. 0:08One brief
  3. 0:15Make: the brief
  4. 0:27Make: the build
  5. 0:40Delivery
  6. 0:50Share
  7. 1:00Refine
  8. 1:12The offer
Play the film

Everything included · $299

Nine deliverables. One brief.

The working app is the centrepiece. Everything around it is there so you can explain the idea and take it further. The deliverables are consistent with each other and traceable back to your brief.

  1. 01

    Strategy & product blueprint

    Objective, users and roles, requirements, sitemap, journeys, scope and build direction.

  2. 02

    Brand system

    Colour, type, spacing and component styling, applied consistently across every artefact.

  3. 03

    Logo

    An original SVG mark. Generated, so check trademark clearance before using it in production.

  4. 04

    Landing page

    A responsive page in the generated brand, with copy grounded in your brief.

  5. 05

    UX flows

    Journeys for every role, with entry points, decisions, empty and error states.

  6. 06

    Wireframes

    Every screen the must-have flows need, each tagged with its requirement.

  7. 07

    Full build plan

    Structure, data entities, role access, sequence, tests and known limits.

  8. 08The centrepiece

    Working app with role logins

    A polished app with a demo login for every type of user and realistic, fictional data.

  9. 09

    Exportable file bundle

    A ZIP with source, assets, documents and a README. Yours to keep and take further.

Proof, not promises

What lands on your dashboard.

Every piece of the delivery is something you can open, click or download. These cards show the golden example run for Cedarline Digital.

Completion gate ·

  • All nine deliverables present and consistent with each other
  • Every must-have feature traced to a brief requirement
  • The working app runs
  • Every app role has a working demo login

Passed. Only then is a run called complete.

Demo logins · every role

Requirement traceability

BR-01Browse schedule, open class detailsSchedule · Class detailBR-02Class, instructor, schedule, capacityClass cardBR-03Book a session, view bookingsBook · My bookingsSEEDStudio, instructors, classes, sessions, members, bookingsFictional

Viewer stats · consented session

14:02Opened
11m 40sTime spent
6Screens

These are observations, not intent. If the client declines analytics, nothing is collected.

File bundle · yours to keep

northstar-booking-demo.zip
├─ app/            source
├─ landing/        source
├─ brand/          logo.svg · system
├─ docs/           blueprint · flows ·
│                  wireframes · build plan
├─ seed/           fictional fixtures
└─ README.md       run locally · index

No credentials, secrets or real-person data.

One price

$299 USD / demo

Everything included. No subscription. First demo free.

White-label by default

No ydemos anywhere your client looks.

The demo is hosted on your own link and presented under your brand. The client's whole journey is yours, from the address bar to the feedback confirmation.

  • Your verified domain. Verified by a DNS challenge, with HTTPS ready before sharing is switched on. No fallback URL.
  • No account for your client. They open the link, pick a role and click through.
  • Live walkthroughs. Go through it together. Your client can take control or leave at any point.
  • Revoke any time. Turn the link off instantly. Your review record and evidence are kept.
demo.cedarline.studio/k7f2q
AI-generated demo; discuss it with Cedarline Digital.
Schedule · My bookings

YOUR UPCOMING CLASSES

THU
18:30Vinyasa Flowwith Theo Marsh · Studio 2Confirmed
SAT
09:00Pilates Reformerwith Ines Okafor · Studio 1Waitlisted

● Fictional studio and records · SEED

Your client sees your domain, your agency name and the neutral AI disclosure. Nothing else.

A quiet studio desk at the end of the day, set up for reviewing work together
After 14:02The pitch, the relationship and the next build stay with you.

What stays human

You run the pitch. We make the thing you pitch with.

You choose what to pitch, run the client conversation, interpret CX-Pen feedback and take the files into Figma, Cursor or a dev team. A demo makes an idea easy to react to. It doesn't decide what your client should fund.

Agency Owner
Signs up, pays, invites the team, sees every demo.
Team Member
Submits briefs, tracks builds, shares links, reads feedback.
Your client
Opens the link, clicks through, leaves CX-Pen notes. No account.
ydemos Admin
Support, free-trial approvals and refunds. Never client-facing.

Honest by design

You put your name on it, so we check it first.

Sharing an AI-built demo puts your client relationship on the line. These rules exist so you're never caught out.

  • A real completion gate

    We only call it done when every deliverable is present, every must-have is traced, the app runs and every role logs in.

  • Blocked means blocked

    If a safety or build problem stops a reliable delivery, the run is marked blocked or failed, with the evidence. It’s never dressed up as finished.

  • No invented requirements

    Anything we infer is labelled as an inference. It never appears as a decision your client made.

  • Fictional data only

    Every seeded person and record is made up. No real people’s data, no real payments, no live third-party connections.

  • You review before anyone sees it

    A five-point checklist with linked evidence. The client link stays off until you confirm it.

  • Clear with your client

    They see a neutral AI disclosure under your name. Analytics only run with their consent. No ad pixels, ever.

Pricing

Pay per demo. Not per seat, not per month.

You pay for a delivered demo, not access to a builder. Price each pitch up front with no recurring fee.

Per demoOne-time charge, shown before you submit

$299 USD

Everything included.

  • All nine deliverablesincluded
  • Working app with role loginsincluded
  • Realistic fictional dataincluded
  • Exportable file bundleincluded
  • Your-domain white-label hostingincluded
  • Viewer stats (with consent)included
  • Live walkthroughsincluded
  • CX-Pen feedback inboxincluded
Total per demo$299.00
Start with a free demo

No subscription. No add-ons. No charge for team seats or client viewers.

First demo free

One free demo per agency.

It's the same full offer as a paid build. You need a verified business email and a brief for a real client project. A ydemos admin reviews each request before production starts.

Refund rule. If we don't deliver a package that passes the completion gate within the 300-minute hard limit, for reasons on our side, the agency owner can request a full refund within 14 calendar days. An admin reviews every request.
Request my free first demo

Questions

The fair questions.

More on builds, sharing, data and ownership in the full FAQ.

Read the full FAQ
Q1Do I have to prompt or guide the build?

No. You submit one structured brief and walk away. There are no prompts, revision rounds or meetings during production, and we don’t ask you questions mid-run. If something is too ambiguous to deliver reliably, the run is marked blocked or failed. It’s never quietly filled in with guesses.

Q2Is it really done in four to five hours?

The standard build time is about four to five hours. The plan is 4 hours 30 minutes, with a hard limit of 300 minutes. That’s a target, not a guarantee for every brief, and you can watch each phase on your dashboard.

Q3Will my client see ydemos anywhere?

No. The demo runs on your own verified domain with no ydemos name, logo, link or fallback URL. Your client sees a neutral line: “AI-generated demo; discuss it with [your agency]”.

Q4Does client feedback change the demo automatically?

Never. CX-Pen notes come to your inbox, pinned to the exact screen and element. You decide what they mean and what happens next.

Q5Is this production software?

No. It’s a polished working demo with fictional data, and it’s the step before Figma, Lovable, Cursor or a dev team. The file bundle gives you a real starting point to take further.

Start · free first demo

Send the brief this morning. Show your client a working demo this afternoon.

  1. Step 1
    Request your free first demo

    Use your business email and name the real client project.

  2. Step 2
    An admin reviews eligibility

    It's one per agency. If you're not eligible, you'll see the paid $299 option.

  3. Step 3
    Write one brief and walk away

    We email when it starts, if it's blocked or fails, and when it's ready for your review.

A ydemos admin reviews every request, so approval isn't automatic. No payment details needed. See Privacy and Terms.

ydemos · Brief this morning. Working demo this afternoon.