Is WhatPulse a keylogger?
A keylogger is a program that logs every key you press including the associated location, which could be an application or website. By doing so, it gathers information from you, particulary your passwords, bank account information, and other sensitive data.
Is WhatPulse a keylogger as described above? No, it absolutely is not. WhatPulse only logs the amount of keys, clicks, and miles you generate while working on your computer. It does not log which keys you press, where you clicked your mouse, nor when. More information is available on the WhatPulse privacy policy page.
To strengthen the above statement, we can state the following. There have been quite a few people from various tech sites, including Tweakers, who have completely turned the the WhatPulse client upside down. This means that they have thoroughly checked the stored data by analyzing outgoing packets and reverse-engineered the entire program. This concluded nothing other than confirming responses.
More information can be found in the "What is WhatPulse's stance on privacy?" page on their site.