Your clients live on WhatsApp, so that is where they ask. At 22:00 on a Tuesday: "any update?" On Saturday morning: a photo of a letter they just received. On Sunday: "can you call me?" Each message is reasonable. Together they turn your phone into a second office that never closes.
Meanwhile the dates that really matter live in a diary, a spreadsheet and your memory: hearings, filing deadlines, limitation dates, notice periods. Documents you need from clients arrive late, or not at all, and chasing them is unbillable time. Long email threads need to be read twice before every meeting. The hours you bill are squeezed between hours of admin you cannot bill.
HeroKit gives you an assistant that works from the same WhatsApp and Telegram your clients use. It tracks every date as a task with early reminders, chases documents politely until they arrive, sums up long threads before your meetings and drafts client updates for you to approve. Nothing goes to a client without your OK on the exact text, and incoming messages from people your hero does not know are summarized for you instead of answered.