no other true competitor on the market
Well, it depends how you see the competition. There is the bot from Jones, which may have lower winrate but if you only use it wit a few accounts (or only one in my case) it is completely free. There is Splintermate (I'm testing it this month) whith a decent winrate, professional looking UI, and a $1 monthly fee per account (nothing more, nothing less). With multiple accounts it may become coslty, but again, I use it with my only acc and there is enough SPS rewards to keep it going.