One of the most popular crypto trading bots is the Cryptohopper bot, which trades based on technical indicators and market sentiment. This bot is free for up to five trading pairs at a time, with paid plans available for access to other markets and up to 50 active pairs at once.
I've never used a robot to trade, the base is a pretty expensive price for me. It seems that the more sophisticated the technology then the price of robots for trading will also be more expensive. Any robot I know doesn't have 100% accuracy. Sometimes they also make mistakes, because robots are human creations. In addition, the way of setting is also influential, for people who do not know then it looks troublesome.