Frontmatter Core vs Kalkulo.eu calculators
Neck and neck on boosts. Profiles, pricing and deals below.
Frontmatter Core
Build-time tools for Astro developers
community boosts
⚡ 0
pricing
Paid
what it is
Frontmatter is a suite of build-time tools that bridge Astro and backend systems. Open core, paid adapters. No runtime. No lock-in.
Kalkulo.eu calculators
Free Salary, Tax & VAT Calculators 2026
community boosts
⚡ 0
pricing
Freemium
what it is
Free country-specific calculators for salary, tax, VAT, loans, property and leave across 22 markets. 288 local calculators, no signup.