One purchase includes the Windows .exe and the HTML browser version. Pro apps are locked until you buy — free tools stay open on the Free apps page.
Instant download · Secure payment · Money-back guarantee
Save 3-5 admin hours every week with smarter templates, faster quoting, and clean client-ready invoices.
No download required — open free tools in your browser, or browse Pro templates with one-time pricing.
From first quote to final invoice, GridFlow helps you move faster with cleaner business workflows.
Digital products
Start with free desktop apps, then upgrade to Pro templates when you want faster workflows and better client docs.
Pro Bundle
Quote Calculator + Budget Tracker + Project Planner in one purchase. One license key unlocks all three (.exe + HTML each). Save vs buying separately.
€39 one-time
Quote Calculator Pro
Describe the job in plain language - AI builds line items, tax, and PDF. Includes Windows .exe + HTML version (unlocked after purchase).
€19 one-time
Budget Tracker Pro
Describe spending in plain language - AI adds it to your calendar. Includes Windows .exe + HTML version (unlocked after purchase).
€17 one-time
Invoice Template Pack
6 professional invoice templates for Excel and Google Sheets. Includes Product Catalog edition with dropdown tiers and auto-pricing for global teams.
€9 one-time
Project Planner
Describe tasks in plain language - AI adds owners, deadlines, and Gantt progress. Includes Windows .exe + HTML version (unlocked after purchase).
€12 one-time
Rate Estimator
Calculate your minimum and ideal hourly rate from costs, tax, savings goals, and billable hours. Free Windows .exe and browser version.
Free
View & downloadDesktop Apps (Windows)
Cash flow, rate estimator, and Invoice AI as native apps. No account, no sign-up — data stays on your PC.
Free
View & downloadPick your path
Desktop Apps
4 free apps — try in your browser instantly. Desktop .exe downloads available on the Free apps page when you are ready.
Pro Templates
One-time paid tools with cleaner layouts, advanced formulas, and polished outputs.
From €12
Custom Build
Need something specific? Get a custom spreadsheet or dashboard built for your business.
From €150
See services →FAQ
Real value
Launch quotes and invoices in minutes, not hours.
Track income, costs, and margins with less effort.
Look more professional with cleaner documents.
Use free starter apps, then upgrade only when ready.
Get 4 free Windows apps and start using them in one session.
Unlock polished templates, stronger outputs, and time-saving shortcuts.
Get a tailored system when your business needs something specific.
Free tool — no sign-up
Describe your project in plain language — AI fills the invoice automatically. Download as PDF instantly. Free, no account needed.
Just type something like:
Quick value check
Enter your current admin hours and hourly rate. We estimate savings if tools cut admin work by 40%.
See Pro templates →Includes quoting, invoicing, follow-ups, and spreadsheet admin.
Estimated monthly value saved (40% time reduction)
Estimated yearly value saved
Estimate only. Assumes a 40% admin time reduction.
Portfolio
Interactive showcase builds — quote tools, CRM pipelines, cash flow suites, and AI workflows. Open any demo live in your browser.

Client-ready quoting with margin risk checks, line costing, and approval-grade totals.
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Revenue tracker with forecast controls, capacity view, and booking board.
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Funnel-step visibility, experiment simulation, and revenue impact projections.
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Runway analytics, burn multiple, stress scenarios, and trend forecasting.
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Generate invoice-ready lines and payment reminders from plain language.
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Drag-and-drop deal stages, weighted forecast, and pipeline health at a glance.
Open demo →
6 premium Excel designs with Product Catalog Edition — dropdown pricing tiers.
View product →Who it is for
Send client-ready quotes and invoices without rebuilding spreadsheets every job.
Track revenue, capacity, and follow-ups in one place instead of scattered notes.
Know your numbers, price work confidently, and spend less time on admin.
No sign-up · runs in your browser