I just went to look at the Haasbot site and it seems they offer an 'Inter-Exchange Arbitrage Bot' with their advanced plan only (https://www.haasonline.com/trade-bots/internal-arbitrage-bot/). Haven't ever used Haasbot so I can't comment on how good it is, but they do offer an arbitrage bot. I currently use Gunbot, but I don't use Bitrage either.