A currency pair quotes one currency against another — for example, EUR/USD tells you how many US dollars one euro is worth. The first currency is the "base", the second is the "quote". When the price rises, the base currency is strengthening against the quote; when it falls, it's weakening. You're always trading the relationship between two economies, not one.
"Major" pairs include the US dollar on one side and tend to be the most liquid and the cheapest to trade. "Crosses" leave the dollar out — like EUR/JPY or GBP/JPY — and often carry more of a risk-on/risk-off character. Whatever the pair, the same forces are at work: the gap between the two central banks' interest rates, the flow of economic data and news, the prevailing mood of the market, and the structure of price on the chart.
Robin reads all of that for every pair it follows and turns it into one graded read — a tier that says how convincing the case is, and a bias that says which way it leans. Open any pair from the Markets page to see Robin's current read, then let the app reach for your phone only when a setup is worth taking.