Excel and Google Sheets
The most popular choice among designers and architects, especially early in their career. Spreadsheets are flexible, free (Google Sheets) or already installed (Excel), and allow you to create any structure.
Problems start as the number of projects grows: formulas break, file versions get confused, and clients have to receive documents through messengers.
Pricing: Free (Google Sheets) or from $7/mo (Microsoft 365)
Strengths
- Free or very cheap
- Maximum flexibility — you can build any structure
- Familiar interface, no learning curve
- Google Sheets — convenient real-time collaboration
Weaknesses
- No built-in structure for specifications — everything needs to be created from scratch
- No client approval workflow
- No product library for reuse
- Formulas easily break when adding/removing rows
- No AI-powered product parsing from URLs
- PDF export looks unprofessional without manual formatting