It so happens that I have both Versions 2 and 3.
Given that the OP has little or no experience generally, I think that Version 2 would be the easier for her to use; and 3 is not much different technically - but a bit more confusing for a first-timer to use.
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As a Scotsman, I was NOT recommending her to purchase Version 4, simply drawing attention to the fact that Version 4 clearly states a cost; and I had been unable to find a Free Version 4, both when it first came out, getting confirmation today by following through that link; and COPY/PASTE the metageeks site's own statement.
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I have now followed through your link, producing-
SOFTWARE VERSIONS AND RELEASE NOTES
inSSIDer Office � For use with Windows XP, Vista, 7, 8
Version 3.1.0.100 (July 31st, 2013) � Release Notes Download
inSSIDer 4 � Windows & Mac
Software can be found at inSSIDer.com
inSSIDer HOME � For use with Windows Vista, 7, 8
Version 3.1.2.1 (December 17th, 2013) � Release Notes
inSSIDer for ANDROID � available at the Google Play Store
contact support if you can�t access the GooglePlay Store.
Bearing in mind that the OP is inexperienced, consider what your link has presented her with, also bearing in mind that she is in a HOME environment.
She is presented with four apparent options-
inSSIDer OFFICE - ?? Is this appropriate for her HOME use?
Version 3 ... Release Notes & Download
inSSIDER 4 - (Has to be purchased etc)
inSSIDer HOME - Apparently what she would want to use; but~
Release Notes (only, no Download link given)
inSSIDer for ANDROID - Could she use that, she has not mentioned ANDROID devices.
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The link I gave takes her straight to a simple download site, so she can confidently access a version quite suited to her requirements immediately, without further action.
She has enough to contend with, without further uncertainty.
Edited by deleted (Fri 11-Apr-14 19:56:36)