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Cellwright
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NewThe first lesson is free to read.

Build your own calculators.

A self-study spreadsheet course with ready templates for solo founders: pricing, cash runway, invoices and project budgets.

  • Copy, adapt, reuse
  • No subscription
  • Prices in US dollars
Pricing

Clear prices in US dollars

Self-study course

Lessons you can read and follow along

$59

one-time

  • Lessons you can read and follow along
  • Exercises with model solutions
  • Access by personal link

Course + template pack

Everything in the course

$89

one-time

  • Everything in the course
  • Ready templates: quote, pricing, income overview

Team licence (up to 10 people)

Everything in course + templates

$249

one-time

  • Everything in course + templates
  • Use for up to 10 people in one company

All prices are final prices. No VAT is charged (small business under § 19 German VAT Act).

What you get

At a glance

Pricing sheet

Set prices from costs and target income.

Cash runway

See how many months your cash lasts.

Invoice tracker

Know what is paid and what is due.

Build it yourself

Learn the formulas so you can change anything.

Cellwright compared

What similar offers typically cost.

CellwrightTypical elsewhere
Pricefrom 59 USD, onceCourse sites typically $15-$100; templates sold separately
Subscriptionnoneoften monthly
Focussolo foundersoften generic

Status: November 2026. Ranges from publicly visible prices of well-known providers; no guarantee. To be re-checked before launch.

How it works

  1. Pick a pack

    Course, course with templates, or team licence.

  2. Get your link

    Access arrives by e-mail.

  3. Make it yours

    Adapt the templates and check against model solutions.

What you can rely on

  • Honest scope

    Self-study only: no marking, exams or certificates.

  • Plain pricing

    Prices in USD. No VAT charged (small business, Sec. 19 German VAT Act).

  • Support

    Technical questions by e-mail in 1-2 working days.

Questions

Is this financial or tax advice?

No. The templates are examples for organising your numbers. Ask a qualified adviser for advice.

Which spreadsheet program?

Files are built for Excel and open in most spreadsheet apps; some functions may differ.

Is there a certificate or coaching?

No. Self-study with model solutions to compare against.

Who can buy?

Private buyers from the US, CA, AU, NZ, JP, SG, CH and NO; companies from almost anywhere.

Ask a question or register interest

Write us briefly. We reply by e-mail.

  • Reply in 1-2 working days

  • No advertising, no sharing

We only use your details to answer your request – no advertising, no sharing. See our privacy policy.

Build your first calculator today.

Free to ask, no obligation.