IoT for Industrial and Home Automation is emerging with a big bang, has huge potential for every field to be used. When there is a need for efficient means to seek IoT interface, a cloud server is what strikes in every design and applications. There are numerous aspects in building a real-time IoT interface, but IoT through cloud can be a source of multiple gains in contrast to its peers such as edge computing [1]. Industrial and Home Automation involve an excellent delivery protocol for an error-free effective transmission in the internet. MQTT protocol is a better option to facilitate the requirements of IoT through its smooth implementation, Quality of Service and data delivery. In today’s world, IoT cloud providers compete to provide reasonable and precise IoT based utilities. Despite extensive engagement of these IoT clouds, we have not initiated standard regularization or few comparative analytical investigations across the research databases. An IoT application calls for diverse resources of a particular cloud and hence it calls for a survey on IoT cloud concerning Latency, interval for subsequent update, user-friendliness, IFTTT compatibility, data handling, processing data, storage limits, servers used and security. An analyses of five of the most eminent clouds (Adafruit IO, Amazon Web Service (AWS), Blynk, Thingspeak and Ubidots) based on the above-described specifications are the factors of motivation for this paper and hence matches the best cloud suited to serve specific purpose and applications.