Help Choosing a Simulator - LTspice, QSPICE or TINA-TI

[CircuitAnalysis]

I got tired of the interfaces in PSPICE, SIMPLIS, LTSPICE, PSIM... so I write my own I call Bolt, which is very new and uses the open source NGSPICE simulator. It is designed to be a nice looking, light weight frontend the complements the SPICE code instead of trying to fully abstract it. It is very early and will have a lot more features added, but if you want to give it a try you can go to:

https://www.circuitanalysis.com/

You have to make an account to download it, but it is free for both Mac and Windows and I plan to add Linux at some point. I setup a discord in case anyone want's to chat in real-time to ask questions or give feedback.

I also have made and will make more video tutorials on how to simulate different types of circuits in this YouTube playlist:
https://www.youtube.com/playlist?list=PLPJa0dSdlB4XFScl976TVHVoVZS2a58-a

Besides Bolt, for free options I would recommend checking out:
-LTSPICE
-QSPICE (written by the guy who wrote LTSPICE)
-Micro-Cap (written buy a guy who retired and decided to make it free now bit it won't get any more updates)

Note that all SPICE simulators are based on Berkley-SPICE, so they all basically have a graphical part where you draw your circuit that it then transforms into a netlist and runs through the SPICE solver to create a data file, which is then loaded into a waveform viewer.

[watchmaker]

I have gotten used to MultiSim 14.3 but after trying the Tina 14 demo I paid for the student version. 

My use is for following EE courses thru online or text.  I want programs that allow me to input the ckts from these sources with the minimum of fuss.  While I do not see getting into PCB design, it looks like TINA 14 accommodates this.  Should I get that far, I know there are PCB vendors who have easy to use tools.

It is more intuitive to me, offers many examples and is fast on my laptop.  The simulator display requires more attention than multisim (I like being able to use the right axis in MS).  I also bought the student examples package which includes problems related to EE 101 and maybe a little beyond.

Have tried MicroCap, PSpice, LTSpice and Kicad.  They are either too limited, cause me grief in connecting pins or I cannot change the schematic texts for things like footprint and such.

Both Multisim and Tina 14 make it easier.  Both are very mouse oriented as opposed to some other programs that are keyboard oriented.

I had tried Tina 9 and found it useless which is when I settled on MS. When you look at the Tina 14 site it looks sketchy; but it is just old school like the GUI theme Tina uses.  When I looked at their other products (edison/newton) I was concerned that the files for those are all from 2009 or so.  But this was not true for the Tina14 Demo files, all 2022/2023.  SO I took the plunge.

FWIW, I only use non cloud based software.  I want to OWN it and know it will not disappear or pay subscriptions.