The iPhone-maker recently entered a 10-year patent-sharing deal with the Taiwanese firm, but did not publicly reveal the figures behind the partnership.
Samsung - which is involved in a bitter patent dispute with Apple across more than 10 territories - sought legal action to establish the details behind the settlement, believing some of the same patents are involved in both cases.
"It is clearly a very smart move from Samsung - because the general feeling is that a lot of its patent disputes with Apple are very likely to be similar to those between HTC and Apple," Andrew Milroy, an analyst with Frost and Sullivan, told BBC News.
"And if there are similarities, it gives Samsung an advantage in any future legal issues and negotiations with Apple."
Industry analysts speculated that HTC would have to pay between $6 and $8 to Apple per Android phone, but the firm's chief executive Peter Chou later dismissed these rumours and insisted he is "happy" with the terms of the agreement.
Apple sued HTC in 2010 in a court case that marked its first lawsuit against Google's Android operating system. Patent disputes have since become rife in the tech industry.
The terms of the cross-licensing agreement will only be released to Samsung lawyers and will not be publicly disclosed.