For experts

Version 1 · Thu 1 Oct 2026

What you get, and every way it ends.

You bring a problem from your work and check each version. When the product sells, you are paid the share of net revenue you agreed, every month, for as long as it sells. Taking part is free.

Describe the problem, 3 min

Free to take part · we reply within 2 working days

01 · Net revenue

Your share is of net revenue, every month it sells.

Net revenue is what buyers paid, minus VAT, payment fees, refunds and disputes. Helio’s part is 10% of it, always. The expert and the product builder split the other 90% as they agree.

Clause 4 of every agreement

Reports from photos · March 2027Example
Sales · 20 people × 30 €600,00 €
VAT 23%−112,20 €
Stripe · 1,5% + 0,25 € a payment−10,50 €
Stripe Billing · 0,7%−4,20 €
Net revenue473,10 €
Expert · Rui MartinsYou10% · 47,31 €
Product builder · Ana SilvaYou80% · 378,48 €
Helio10% · 47,31 €

US products: no VAT. Stripe fee and currency exchange 5,25% + 0,25 € a payment, plus Billing 0,7%.

Refunds and disputes come off too. March 2027 had none.

02 · Your share

You and the product builder agree your share. Helio suggests where to start.

The suggestion depends on how far the product is when the second person joins. Offers and counter-offers go in a Helio thread, each with a short note, and expire after 7 days. Contact details stay hidden until the agreement is signed.

Clause 3 · a change is a new version, signed again

Helio suggests · on March 2027Example
Stage when you joinYouExpertYouProduct builder
Idea10%47,31 €80%378,48 €
Design8%37,85 €82%387,94 €
Working version6%28,39 €84%397,40 €
Selling4%18,92 €86%406,87 €
Helio, at every stage10% · 47,31 €

Worked on net revenue of 473,10 €. A place to start, not a rule.

Construções Norte · founding priceExample
January 2027 · 6 people × 30 €180,00 €
February 2027 · 6 × 30 €180,00 €
March 2027 · 6 × 30 €180,00 €
April 2027 · 7 × 30 €210,00 €
A person, a month
locked for as long as you use it
30 €

Founding price for the first 10 teams · 6 taken · March 2027

03 · Your money

Months 1 to 3 arrive as one sum. Then every month.

Your share of the first three months of sales is held for you and paid with month 3. After that it is paid every month, straight to your account through Stripe Connect.

Clauses 5 and 6 of every agreement

Rui · Reports from photosExample

Months 1 to 3: held for youMonth 12: the full share

January 202728,43 €
February 202740,24 €
March 202747,31 €
Months 1 to 3, one sum
by Tue 20 Apr 2027
115,98 €
Then monthly · April 2027, by Thu 20 May 202749,68 €
Statementby the 10th
Moneyby the 20th · Stripe Connect
In Portugala recibo verde first Open
A new bank accountwaits 72 hours · we email you
Buyers through your link, beyond the letter teamsextra share · not set yet
Ana · Reports from photosExample
January 2027 · by Fri 19 Feb 2027227,40 €
February 2027 · by Fri 19 Mar 2027321,93 €
March 2027
by Tue 20 Apr 2027
378,48 €
Then April 2027, by Thu 20 May 2027397,47 €
Statementby the 10th
Moneyby the 20th · Stripe Connect
In Portugala recibo verde first Open
A new bank accountwaits 72 hours · we email you
Construções Norte · Pedro AlvesExample
  1. Letter signed: we will pay when it is ready. 0 €
  2. Email confirmed, the letter counts
  3. Version 0.1 ready, the beta free through December
  4. First payment, 6 × 30 € 180,00 €
  5. Every 3rdThe next payment, with an invoice
Invoicewith every payment
Card detailsstay with Stripe
Price a person30 €, locked
To stop payingin the Stripe portal, from your letter page

04 · How it ends

Every way it can end, written down before it starts.

Each case has its notice period and says who is paid what.

  1. 1

    Letters stop under five. Nothing is built or sold before 5 letters, so either side can step back at any time, with no notice and nothing owed. The place is free again the same day; if the expert steps back, every letter team is told nothing was charged.

  2. 2

    The product does not sell. Fewer than 3 paying after a round of fixes: Helio closes it with 30 days’ notice. The expert is offered the product first. Buyers do not pay for the last month.

  3. 3

    The product builder leaves. 30 days’ notice. Their share stops at the end of the notice and months already earned are paid. Helio finds a new product builder; the expert keeps the seat and the agreed share.

  4. 4

    The expert steps away. Before month 3, the held months are not paid. Between months 3 and 12, a part in proportion to the months. After month 12, the full share for as long as the product sells. Wording: Open

  5. 5

    A team stops paying. Payment renews every month at the locked price until the team stops it in the Stripe customer portal, linked from its letter page. Notice and any refund: Open

  6. 6

    The two build it outside Helio. If the expert and the product builder build the same problem together outside Helio within 24 months, Helio’s 10% of its net revenue stays owed. The period: Open

05 · The agreement

One agreement per product, signed by all three.

It holds the split, the money dates and every ending above. Read the summary or the full text, confirm it is you with a fresh sign-in, then sign with a qualified electronic signature through Skribble. Everyone has 7 days to sign; Helio signs last.

Clause 10 · signed terms never get worse for you

Agreement AGR-2026-001 · version 1 · Reports from photosExample
ExpertRui MartinsSite manager · Porto
Product builderAna SilvaBuilds the app
HelioHelioLegal entity Open
Clauses 3 to 11, in short
  1. 3.

    The split of net revenue: expert 10%, product builder 80%, Helio 10%.

  2. 4.

    Net revenue is what buyers paid minus VAT, payment fees, refunds and disputes.

  3. 5.

    A statement by the 10th, the money by the 20th, through Stripe Connect.

  4. 6.

    The expert’s months 1 to 3 are held and paid with month 3; the full share from month 12.

  5. 7.

    Leaving: 30 days’ notice. A product builder who leaves is paid the earned months; an expert who leaves keeps a part by months of sales, nothing before month 3.

  6. 8.

    Closing: fewer than 3 paying after a round of fixes; the expert is offered the product first; the last month free for buyers.

  7. 9.

    If the two build it together outside Helio within 24 months, Helio’s 10% of it is still owed. Open

  8. 10.

    These terms never get worse for anyone who signed them.

  9. 11.

    Legal names, tax numbers and addresses; governing law and court. Open

Signed with Skribble (qualified signature) after a fresh sign-in · 7 days to sign · Helio signs last

What reaches Pedro by emailExample
Confirm the letterWed 14 Oct 2026
Open the betaWed 2 Dec 2026
Manage the paymentSun 3 Jan 2027

Sent to pedro.alves@exemplo.pt. Each link does one thing, works for 30 days and can be cancelled. We never ask for a card number by email.

06 · Who you agree with

The company behind Helio.

The company that signs for Helio and the law that applies are being set with a lawyer. Until then each one is marked Open, here and on the legal pages.

Legal entityOpen
Tax number (NIF)Open
Registered officeOpen
ContactOpen
Governing law and courtOpen
Consumer disputesCICAP, Porto Open

Version 1 · from Thu 1 Oct 2026. A new version never makes a signed agreement worse.

Bring the problem you know best.

Describe the problem, 3 min

Free to take part · we reply within 2 working days