Partners, and the line called the Descendant
Committed relationships, business partners, and anyone you deal with one to one, including, traditionally, open rivals. The line where it begins is called the Descendant, and it sits exactly opposite your Ascendant, so its sign is simply the opposite of your Rising sign. Aries Rising has Libra on the 7th. Virgo Rising has Pisces there.
A popular idea is that this sign describes what you’re drawn to: the qualities that don’t come naturally to you and that you tend to find in other people. Someone who comes across as fiercely independent may keep falling for people who are good at compromise, then get annoyed with them for it.
An empty 7th house
Many charts have no planets here, and people often get worried about it. They needn’t. There are ten planets and twelve houses, so some houses are always empty. It says nothing about whether you’ll have a relationship. It might only mean that your chart’s emphasis lies elsewhere.
Planets that are here tend to show the flavor of your partnerships. The Sun may mean relationships feel central to who you are. Saturn may mean you take them seriously, perhaps later than your friends did. Uranus may want a relationship shaped differently from the usual kind, and that’s a fine thing to want.
How the app treats this house
You might expect the app to lean on this one. It doesn’t. MatchMachine doesn’t read your 7th house for clues about a partner, and it doesn’t check whether someone’s planet lands in it. As with the others, a planet here simply counts as being in one of the stronger houses. The comparison itself runs on aspects between the two charts.
We think that’s the right amount of weight. Knowing what you tend to look for can be useful self-knowledge, as long as it doesn’t become a checklist to hold up against an actual person.