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LC Predictor icon

LC Predictor Chrome Extension Analysis

Developer & Designer Tools

Chrome extension ID: jfhgaegpgiepniiebglgjhhfnjcibphh

LC Predictor is a browser extension that provides predicted rating changes for LeetCode contests. It integrates this data into the existing LeetCode ranking pages for the user and other contestants.

Developer:SysSn13
Version:1.0.2
Size:172KiB
Last updated:
View developer profile
External:Chrome Web StoreOfficial website

Overview

Installs

5K+

Rating

★ 3.3

18 reviews

Languages

1 locales

Includes English

Market analysis

Review-backed positioning, friction, and market signals for this Chrome extension.

Backed by review samples

Macro category

Developer & Designer Tools

Pricing friction

Low review signal

Complaint intensity

Moderate review signal

Listing & review signals
Observed signals from store listing text and review samples.

Listing positioning

The extension positions itself as a time-saving tool for LeetCode contest participants. It claims to eliminate the long wait for official rating updates by showing approximate rating deltas directly on the LeetCode ranking pages.

Inferred product pattern

A niche utility that adds derived data overlays to a third-party platform to provide immediate insights the original platform delays.

Review-backed pain points

Users report that the extension frequently stops working entirely, failing to show rating changes even after official rankings are released.

Observed feature gaps

Lack of clarity regarding whether the predictor accounts for all global participant demographics, specifically Chinese participants.

Tags
LeetCodeContest RatingCompetitive ProgrammingRating Predictor
Target users

- LeetCode contest participants

- Competitive programmers

- Software engineering students

Primary use cases

- Predicting contest rating changes immediately after completion

- Viewing approximate rating deltas for all contestants on ranking pages

Positive themes

- Prediction accuracy

- Speed of delivery

Negative themes

- Functional failure

- Lack of maintenance

Observed friction

- Performance complaints detected

- No pricing friction observed as the product appears to be free.

Evidence boundary: Extracted from the Chrome Web Store listing and a sample of 10 user reviews. Analysis is based on a small number of total reviews (18).
Complaint summaries
Review-backed complaint signals grouped by operational area.

Support

At least one user reported a lack of response to a query regarding update times.

Reliability

Significant reliability issues reported, with multiple users stating the tool is 'not working at all' as of 2024 and 2025.

Privacy

No privacy or security complaints observed.

Access & pricing

- Free usage observed

- No account requirement observed

- Free plan or free usage claimed

Store listing facts

Listing assets

- Screenshots: 2

- Videos: 0

- Languages: 1

Trust signals

- Developer contact

- Official website

- Support link

Store metadata

- Version: 1.0.2

- Size: 172KiB

- Last updated:

Listing SEO keywords

Search intent keywords
Keyword signals for evaluating how users may discover, compare, or search for this extension category.

Core discovery

LeetCode rating predictorLeetCode contest deltapredict LeetCode rating

Comparison

LC Predictor vs official ratingbest LeetCode rating estimator

Problem

LeetCode rating wait timehow to find LeetCode rating change

Alternative

LeetCode rating calculatorLeetCode contest predictor

Similar extensions

Jump to related discovery paths:

More in developerMore from this developer

Screenshots

LC Predictor screenshot
LC Predictor screenshot

Links

Website: lcpredictor.onrender.com

Support links: https://github.com/SysSn13/leetcode-rating-predictor/issues

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