Hi RaghavSingla,
We can't comment for other tests but do note that no test prep company's algorithm will exactly match the real thing. The best we can do is get close.
You can always take a free GMAT PILL practice test here complete with detailed performance and timing analytics:
https://www.gmatpill.com/gmat-practice-t ... ctice-testIn terms of our scoring, many of our students report scores that are +/- 30 points from their actual GMAT test and so are a relatively good indicator of their performance. That said, no practice test can perfectly replicate the actual score algorithm, but this is quite close.
In addition, to improve CR, we recommend a visual framework approach to help you understand the complex short passages and how each item relates to each other.
Here is a video describing the visual framework approach:
https://www.gmatpill.com/criticalreasoni ... Estate.mp4Best of luck on your studies!