I use my phone a little more than the computer because I share the PC with my kids. I don't find it giving me different solutions or what's considered the "best move" as much as I always see a difference in the evaluation points. Although sometimes because the phone is evaluating different than the PC it does give the first move as something different but generally I do see a fairly big difference in the points(as much as .5 difference at times) from mobile to PC.
Analysis differences between mobile app and computer
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The points are similar but the list of the moves is different.
Yesterday my opponent resigned after 13th move in app i have 10 excellent and 3 inaccuracy but in computer i have 11 excellent and 2 good moves. It made me confused.
No info about the topic from the support team? 3 years later = same problem
we pay good money, though...
Jul 28, 2020
0
#5
It all depends on the depth of the engine. By that, I mean how far an engine can see. A chess engine which sees 10 moves ahead will give different suggestions to the same engine that can only calculate 5 moves ahead. A quick analysis using the chess.com engine is fantastic for blunder checking and pointing out missed tactics but I don´t think it will be much help in terms of aiding your positional or strategic understanding of a position.
Ok, and why it is not possible to launch on the phone analysis with say depth 26?
Jul 28, 2020
0
#7
The Phone Processor is less than 5 watts. A desktop or laptop CPU is greater than 45 watts usually. For blunder checking, phone can do that easily. Still the move suggested by Stockfish on phone can beat GMs.
Ripley_Osbourne написал:
Mwell, I'm surprised no one seem to know the basic rule of informatics: more space means more (potential) power. There is more space within a laptop than within a smartphone, and more space within a desktop than within a laptop. Therefore, you'll usually get more power for the same price with the bigger machine, or as much power for less money (since miniaturization costs: rare elements, etc).
As a reminder, the IBM comptuters in the 50s were huge, and here is the deal: since then, it has always have been a race for costs reduction and performances enhancement, along with space saving (ultimately, space occupation generates costs).
The present state of the market sure might be confusing, hence why it's interresting to know history, especially history of computers, when you want to understand why and how this machine performs better than that other machine.
Thank you professor Ripley_Osbourne 
Seems that my question is not so clear.
"why it is not possible to launch on the phone analysis with say depth 26?"
I mean give me the option in the mobile app settings to choose the depth of the engine. And let me to decide wether i want to wait for an hour before my phone got down to depth 25 and drain out my battery or i will choose a more humble depth.
P.S.
"I'm surprised no one seem to know the basic rule of informatics"
And you don't even know me and what i know about informatics 
But what do you think about the option in the mobile app settings to choose the depth of the engine?
I always play and analyze the games on my mobile phone but today i analyzed 'the game that i played yesterday' on computer and it gave me the different solutions from mobile app.
Why is it happened like that and which one is correct?
Do you have the same problem?