CF-Predictor Chrome Extension Analysis

Listing positioning

The extension positions itself as an anxiety-reducing tool for competitive programmers on Codeforces. It modifies the contest standings page to display real-time approximate rating changes for participants.

Inferred product pattern

Single-purpose niche browser utility for competitive programming data visualization.

Review-backed pain points

The tool is frequently reported as broken or non-functional for extended periods, leading to user frustration. Some users note that predictions occasionally deviate significantly from actual results.

Observed feature gaps

Users have requested support for secondary domains and noted that the tool occasionally fails to update or calculate data after contest conclusion.

Support

Users express frustration regarding a lack of updates and maintenance, though no specific support/billing disputes were noted.

Reliability

The primary complaint is that the extension frequently stops working entirely or fails to fetch new contest data.

Privacy

None noted.