OnFileBooks is bookkeeping software built for accounting and bookkeeping firms, not single businesses. Upload any bank statement (PDF, CSV, Excel) and every month is checked against the bank's own printed balances, so a month that doesn't tie is caught with the exact gap. One screen shows every client's statements: what's in, what ties, what's missing, with one-click requests to clients. Rules + AI categorize; you approve the exceptions. Reports trace every figure to the bank line.