Operand

Operand is an AI assistant designed to help users with their research, work, and app access. It has the ability to remember data and carry out calculations. Both a free and paid plan are available, with the paid plan costing $9.99 per month and allowing 3000 messages to be sent. The assistant is available on iPhones and can handle different file types. New features are continually being developed and customers can give feedback by email or Discord.