How is this different from the upgrade cost calculator?

Different tool, complementary purpose. Use both in sequence.

This page (/magento-version-checker): tells you whether and how to upgrade.

• Input: your current Magento + PHP + extensions.
• Output: EOL status, recommended target, multi-hop path, breaking-change checklist, PHP warnings, per-extension compatibility flags.
• The “is my version dead, what’s the safest path forward, and will my extensions survive” tool.

The cost calculator (/magento-upgrade-cost-calculator): tells you how much it’ll cost and how long it’ll take.

• Input: version distance, SKU count, custom modules count, extensions count, Hyvä yes/no, B2B yes/no, multi-store, custom checkout, ERP integration.
• Output: $ range, week range, risk factors, cost breakdown.
• The “what budget do I need” tool.

Recommended workflow:

1. Run this checker first to confirm your version is upgrade-target-worthy and your extensions are ready (or need swap).
2. Run the cost calculator next to budget based on the path the checker recommended.
3. Book the audit via either form to get a written, locked fixed-price quote within 24 hours.

Both tools are free, both run with no signup, neither stores your input.