Computer Analysis

You would need to post an example of what you are talking about.

Hopefully i explain this well....

Why does Computer Analysis give different point at different time at same stage of game from basic analysis at web?

The more time you give an engine to think, the more the analysis (point difference) will change.  I would imagine that the strength of the engines differs from the web version, and also depends on the hardware you're running.

Also it differs from quick analysis of android app. Why there is point variation at same stage? Please explain it.

Again...The engine strength will account for the varying analysis results.  The "point variation" is how the engine evaluates a position.  A position with a + means white has an advantage.  A position with a - means black has an advantage.

To be honest.  All you should be using an engine for is to check for blunders, and missed tactics.  Anything more than that and its a waste of your time.

Many Many thanks to you for giving me some of your valuable time.

Glad to help.  Hopefully i explained things well enough for you.

So you have a basic understanding of engine analysis.

.33 generally means 1/3 of a pawn, or 1 tempo.

1.00 means 1 pawn.

+1.50 means white is ahead by 1.5 pawns.

-4.00 means black is winning by 4 pawns.