1. Why scores differ
Each tool uses a different benchmark: some emphasize keywords, others structure, and others proprietary heuristics.
If you compare scores across different job posts, variation increases even more.
2. How to make score useful
The useful score is the one you can explain: missing keywords, penalized section, and clear priority fixes.
- Always measure on the same posting.
- Review the breakdown, not only the overall number.
- Check that recommendations are actionable.
3. Simple decision rule
If tools disagree, keep the one with transparent methodology and run before/after tests on the same resume.
- Version A: current resume.
- Version B: resume updated from recommendations.
- Keep the tool that shows consistent gains across several postings.