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Software concept Template for sale

GentleDue — a calmer invoice follow-up

A welcoming software presentation for payment follow-up. The complete edition adds clients, invoices, partial receipt records and reviewed reminders in a private workspace.

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See it before you buy

What you get, in each option

Videos and pictures of the real product, with sample data.

Website template

The website design, demo interactions and editable files. No database or management dashboard.

The finished site, ready to upload to any host
The editable source — every word, colour and section
A README that walks you through it, in Portuguese and English

€10.00

Pictures 10

Buy this template

Make it your site

€10.00

Final price · one website per purchase

Low launch price · limited-time offer

Choose what you needWebsite templateThe website design, demo interactions and editable files. No database or management dashboard.€10.00Website + management systemThe website connected to a lightweight, single-purpose system: plain PHP and SQLite, no framework. A private area to manage the business, with the same access for whoever signs in (no roles or permissions) and no integrations with other services.€29.00Website + Advanced BackendThe website on the Advanced Backend: a backoffice with a team, roles and permissions, an editable multilingual site, bookings, shop, payments, marketing, analytics, integrations and AI. Laravel and Vue in Docker, on a server of your own (2 vCPU, 4 GB).€180.00

The finished site, ready to upload to any host
The editable source — every word, colour and section
A README that walks you through it, in Portuguese and English

Version v1.0 · 0.3 MB

Your email

The download link and the archive password go here.

Name (optional)

Invoice details (optional)

Tax number (NIF or VAT ID)

Name or company on the invoice

Leave these empty for an invoice without a tax number. For a tax number from outside Portugal, start it with the country code (e.g. ES…).

I have read the licence: one website per purchase, no resale. Terms

What you buy:: Template “GentleDue — a calmer invoice follow-up” v1.0 — a ZIP containing the finished site and its source, downloaded from this site.
Total price:: €10.00. VAT exempt under art. 53.º CIVA. No additional charges.
Delivery:: Immediate, by a download link emailed to you. No physical medium.
Right of withdrawal:: You have 14 days to withdraw without giving a reason — but you lose that right by accepting immediate delivery below. Without that acceptance we cannot release the file immediately.
Guarantee:: 2 years of liability for lack of conformity (DL 84/2021).
Seller:: Full identification, contacts and complaints book

I expressly request that the file be made available to me immediately, during the withdrawal period, and I acknowledge that by giving this consent I lose my right of withdrawal from the moment the download is made available (article 17(1)(l) of Decree-Law 24/2014).

Total price: €10.00

Payment by Stripe. We never see your card.

Forms in the template are front-end only. Connecting them to an inbox or a system is a service we can quote.

Need something extra?

Ask for extra features or design changes. Tell us your idea and we will reply with options and a quote, without obligation.

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Two distinct editions: €10 includes an English landing and local fictional sample; €29 also includes a working private workspace for invoice follow-up, receipts and reviewed reminders. This is not a SaaS subscription or a tax invoicing application.

In detail: Website template

Demo design and interactions

The demo uses sample data. In the template, bookings, payments and accounts are simulations. The other options describe what really works in them.

Template only (€10): responsive English landing, GentleDue identity and a local interactive sample, without saving real invoices.
Website + system (€29): private client and invoice workspace for invoices issued elsewhere, with separate EUR/USD/GBP balances, owner, next action and payment promise.
Atomic CSV import up to 200 rows with duplicate protection; search, filters, ordering, pagination and report export.
Manual partial/full receipt records and explained corrections, without exceeding the balance or changing original financial details after history exists.
Warm/direct PT/EN reminder drafts, review, approval and .eml export or opening in your email application. Sending is recorded only after personal confirmation.
Client/invoice pauses; payments and relevant changes cancel outdated drafts. History retains original recipient and balance.
English landing with editable copy and a separate fictional sample; PT/EN management and illustrated guide, source, persistent Docker, backup and actual video.
One business per installation. No automatic sending, email sequences, connected AI, money collection, fiscal invoicing, client portal, public accounts or Xero/QuickBooks integrations. Hosting and external services excluded.

Build log

Adapted the original product direction into isolated Vue components, preserving its typography and visual identity.
Connected the sample workflow to local state, with clear feedback and no external account or payment actions.
Integrated the work catalogue, bilingual case description, provenance notices and first-party analytics.

Stack · Template

Vue 3
TypeScript
Tailwind CSS
Vite

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