Google Scholar offers free author profiles, including analytics data.

Setup requires a Google account.

Metrics

• Citations: Google Scholar lists your citations along with the number Cited-by (works that cite the article). Scholar also provides a bar graph that tracks your citations over time.
• h-index: One of the most commonly used metrics, the h-index (Hirsch Index) calculates the impact of a scholar's work.
• i10-index: used only by Google scholar, this tracks the number of articles with at least 10 citations