Marketplace listing · business 04
After Six: ten questions, then the side business you keep putting off.
A finished, working prototype of a UK subscription product. Answer ten questions about skills, evenings and interests; get a matched business with a name, brand, one-page site, first offer and a dated 30-day plan, then a Monday coach. Pre-revenue: no customers, no reviews, no earnings claims.
£4,250
Asking price
Our ask, justified below
£5,250
Cost to rebuild
15 days at £350, Estimate
£15.46
Kept per subscriber a month
Blended, Estimate
£400
To launch
Start-up, Estimate
The case in four lines
Why someone would pay for this.
- A real want. Almost half of GB adults said they had a side hustle in January 2026, and the cost of living was the top reason (Finder / Censuswide).
- A product that lands. Four minutes of questions end in a printed reveal with your name on it. That is the moment people share.
- Cheap to run. The matcher is rules, not AI, so free reveals are cheap: we budget about 4p of AI wording each, £60 a month for 1,500 (Estimate). Most AI spend is for paying subscribers.
- Honest by design. No earnings promises, which the CAP Code requires for this kind of product, and a 14-day test that can say no.
Try it here · Example
Three questions. One printed idea.
The same matcher the ten questions use, running in this page. Your answers are not saved or sent anywhere. The other seven answers are set to neutral, so this is a taste of the reveal, not the full result.
Your mini poster prints here.
What you get
Eight finished pieces, clickable today.
Static files, no build server needed to host them. A Python generator rebuilds every page from one idea library and one economics file.
01
Home page
Hero film, press-registration opening, Example reveal tabs, evening maths, pricing toggle, FAQ.
02
The ten questions
Ten screens with skills, style, interests, hours, days, budget and town, then the press.
03
The reveal
Name you can reshuffle, brand poster and SVG mark, colours, one-page site mock, first offer to copy, 14-day yes-tally, dated 30-day plan, .ics, print.
04
Monday coach
Check-in chat, week board, the rubbish-week button and a wins jar.
05
Idea library
40 UK-checked side businesses with filters, flip cards, deal-me-one and a detail sheet.
06
Tax, rules and contract
Take-home Estimate calculator on 2026 to 2027 GOV.UK rates, dates, contract checklist.
07
Brand system
After Six riso identity: four inks, three type families, press motion and sound engine.
08
Buyer pack
This listing, a business plan and a seven-evening launch playbook, in HTML and Markdown.
Not built yet, said plainly.
- Accounts, payments and a database: everything currently lives in the visitor's browser.
- Live AI calls for the kit writer and coach (prompts are written, in the playbook).
- Sending the Monday email (template and rules are designed; no mail provider is connected).
- Publishing each customer's one-page site to a real address.
- Claims guard and owner digest agents.
- A trademark and Companies House check on the name After Six.
Day by day plan for all of it: the week-one playbook.
Demand and prices, sourced
Facts we could check.
Every figure below links to where it came from. Anything we could not verify is labelled an Estimate or assumption instead.
- Demand
46% of GB adults said they had a side hustle; 28% named the cost of living as the main reason; 18% had used AI for side-hustle advice.
Finder / Censuswide, 2,000 GB adults, 3 to 6 January 2026, accessed 22 October 2026.
- Price anchor
Durable lists its Launch plan at $25 a month for an AI website alone.
Durable pricing page, accessed 22 October 2026.
- Price anchor
Looka lists a Brand Kit at $96 a year and Brand Kit Web at $129 a year.
Looka pricing page, accessed 22 October 2026.
- Payments
Standard UK cards cost 1.5% + 20p per charge.
Stripe UK pricing, accessed 22 October 2026.
- Billing
Stripe Billing adds 0.7% of Billing volume on pay as you go, on top of card fees.
Stripe Billing pricing, accessed 23 October 2026.
- EU VAT
Digital services sold to private consumers in the EU are taxed where the customer lives. A UK business must register for the Non-Union scheme in one EU country or for VAT in each country, with no threshold, so it applies from the first EU sale.
GOV.UK digital services VAT guidance, accessed 23 October 2026.
- AI cost
gpt-5-mini is listed at $0.25 per million input tokens and $2.00 per million output tokens.
OpenAI API pricing, accessed 22 October 2026.
- Compliance
Tier 1 data protection fee is £52 a year.
ICO data protection fee, accessed 22 October 2026.
- Advertising rules
Work-from-home and business-opportunity ads must not forecast earnings (rules 20.4 and 20.7).
CAP Code section 20, accessed 22 October 2026.
- Tax
The first £1,000 of trading income a year is covered by the trading allowance; register for Self Assessment by 5 October.
GOV.UK trading allowance, accessed 22 October 2026.
- Employment
You can be employed and run a business; exclusivity clauses are banned in some low-paid contracts.
GOV.UK and Acas, accessed 22 October 2026.
- Resale market
Flippa caps the asking price of new and non-revenue sites at US$9,999. Documented pre-revenue sales on one platform closed between US$500 and US$4,500.
Flippa Help Centre; Flipagora analysis of ExitBid data, accessed 22 October 2026.
The numbers Estimate
What one subscriber leaves behind.
Launch costs £19 a month or £149 a year. The reveal is free. These are model figures from build/lib/econ.py, not results.
| Per subscriber, per month Estimate | Monthly plan | Yearly plan | Blend (70% monthly) |
|---|---|---|---|
| Price | £19.00 | £12.42 | £17.02 |
| Card fee and Stripe Billing | −£0.62 | −£0.29 | −£0.52 |
| AI for coach and kit (assumed) | −£0.75 | −£0.75 | −£0.75 |
| Hosting their one-page site (assumed) | −£0.25 | −£0.25 | −£0.25 |
| Coach emails (assumed) | −£0.05 | −£0.05 | −£0.05 |
| Kept each month | £17.33 | £11.08 | £15.46 |
Fixed each month Estimate
| Database, hosting and auth | £22 |
|---|---|
| Domain and email | £8 |
| AI for free reveals (about 1,500 a month at about 4p) | £60 |
| Transactional email | £15 |
| Small software | £10 |
| ICO fee spread monthly (£52 a year) | £4.33 |
| Fixed a month | £119.33 |
To launch Estimate
| Domain, first year | £12 |
|---|---|
| ICO data protection fee, tier 1 | £52 |
| First month of hosting | £22 |
| Test adverts, one-off, capped and optional (on top of the £30 cost to win each subscriber) | £250 |
| Contingency | £64 |
| Start-up total | £400 |
Three illustrative months, six months after launch
Cautious Estimate
£628
a month to the owner at 60 paying subscribers, about 3 hours a week.
Pays back the £4,250 ask in about 6.8 months of this steady month. With the year-1 ramp: not in year 1.
Middle Estimate
£2,123
a month to the owner at 180 paying subscribers, about 5 hours a week.
Pays back the £4,250 ask in about 2.0 months of this steady month. With the year-1 ramp: month 9.
Hopeful Estimate
£4,863
a month to the owner at 400 paying subscribers, about 8 hours a week.
Pays back the £4,250 ask in about 0.9 months of this steady month. With the year-1 ramp: month 7.
Buyer calculator Estimate
Move the dials. See the month.
Net to the owner each month
£2,123
- Net
- Per-subscriber costs
- Replacing leavers
- Fixed
- Revenue
- Pays back £4,250 in
- Worth of one subscriber
- Owner time
Owner Estimate. Net = subscribers × kept per subscriber, minus replacing leavers at the cost to win one, minus £119.33 fixed. Owner time is our assumption: 2 hours a week plus one hour per 70 subscribers. Payback assumes this steady month from day one; the 1-year plan ramps up from zero, so it is slower there. No subscribers exist yet.
Why £4,250
Priced under the cost of building it again.
- Below rebuild. Our Estimate to rebuild is £5,250. The ask is 19% less, because nobody has paid for it yet.
- Inside the market’s rules. Flippa caps non-revenue sites at US$9,999. One platform’s documented pre-revenue sales closed at US$500 to US$4,500; this sits near the top because the product, brand and plan are finished, not sketched.
- Short payback if it works. At the Middle Estimate the ask comes back in about 2 months. At Cautious, about 7.
Sources: Flippa listing price rules and Flipagora / ExitBid pre-revenue data, accessed 22 October 2026.
| Brand, riso design system and motion engine | £700 |
|---|---|
| Five site pages with coded openings and the hero film | £1,400 |
| Ten-question matcher and reveal generator | £1,050 |
| Coach and tax calculator flows | £700 |
| Idea library and UK rules research | £350 |
| Economics, plan, listing and playbook | £700 |
| Audit, accessibility and performance fixes | £350 |
| Rebuild, 15 days at £350 a day (Estimate) | £5,250 |
How the AI runs it
Seven agents. You read what they flag.
The owner’s job is reading what the agents flag, not doing what they do. The prompts are in the playbook.
| Agent | Job | State today | Human time |
|---|---|---|---|
| Matcher | Scores 40 ideas against the ten answers: skills, style, interests, online or local, people, budget and free hours. | Built. Runs in the browser, rules not AI, so it is free and explainable. | Owner reviews the idea library each quarter. |
| Kit writer | Writes names, tagline, the one-page site copy and the first offer for the matched idea. | Prototype uses written templates per idea. Live version calls gpt-5-mini with the prompt in the playbook. | Spot-check 5 kits a week. |
| Planner | Turns the free evenings into a dated 30-day plan and a calendar file. | Built. Dated plan, ticks and .ics download work today. | None. |
| Monday coach | Sends a check-in, reads the reply, moves the week if it was rubbish, and points tax, law and employer questions to GOV.UK or Acas. | Prototype replies are written rules, labelled as such. Live version uses the coach prompt. | Read flagged replies daily (about 10 minutes). |
| Test referee | Runs the 14-day demand test: counts paying yeses, calls the go line at three, suggests the runner-up on a no. | Built as the yes-tally on the reveal. | None. |
| Claims guard | Checks every generated line for earnings promises (CAP 20) and regulated work (food, DBS, insurance) before it is shown. | Planned. The prototype copy was written to these rules by hand. | Review anything it blocks. |
| Owner digest | Monday email to the owner: sign-ups, reveals, trials, cancellations, flagged chats. | Planned. | Read it: 15 minutes. |
Look before you buy
Every screen, clickable.
The reveal: a name, a poster and a first evening
One of the ten questions
Home, after the film
The idea library, dealt
Monday coach board
Take-home Estimate calculatorScreenshots of this prototype at 1440 pixels wide. Names and answers in them are Examples.
Risks
What could go wrong.
- Earnings expectations. People buy side-hustle products hoping for money. CAP 20 bans forecasting it. After Six sells a test instead, and every page says so. Keep it that way.
- Churn after the 30 days. A plan has a natural end. The coach and the runner-up switch are there to give a reason to stay; we assume 10% a month leave anyway.
- Regulated ideas. Food, childcare, pet care and driving ideas carry rules. The library links each one to its GOV.UK source; the claims guard must check generated kits too.
- Tax content goes out of date. Rates change each April. The calculator is labelled an Estimate and should be checked against GOV.UK every tax year, ideally by an accountant.
- EU customers. Selling to consumers in the EU brings EU VAT from the first sale (see Sources). Decide before launch: sell to UK customers only, or register for the Non-Union scheme. The plans assume UK customers only.
- AI quality. A dull or wrong kit kills the reveal. Keep the matcher rules-based and use AI only for wording, with the guard in front.
Due diligence
Check it yourself in ten minutes.
Do not take the listing’s word for it. Five checks a buyer can run tonight, on any laptop.
- Answer the ten questions as yourself. Refresh halfway: it picks up at the same question. Refresh the reveal: it is still there.
- Push the take-home dials until costs beat takings. The receipt says you are down. It never shows a loss as £0.
- Turn the films off. Add
?intro=0, switch on Data Saver or reduced motion: the opening films are never downloaded, and every page still reads. - Open the network panel. Nothing loads from another site and no cookies are set. Answers stay in the visitor’s own browser.
- Read the audit folder. Before and after screenshots, flow tests and Lighthouse runs for every round of fixes.
We ran each check on 23 October 2026. Run them again; that is the point.