About ActivityTracker

ActivityTracker is one app for the people you sell to, your WhatsApp chats, your follow-ups, your day plan and your targets. It's built for reps, small sales teams and people who sell their own services, and it runs on your phone.

Who runs it

Leo Tan founded ActivityTracker. It's run from Singapore by D'Marketing Agency Pte. Ltd., the company named in our terms. Write to him at leo@activity-tracker.io, about the product or about anything on this site.

How we write the blog

Every post is written to the person doing the job. Since October 2026, each post we write or rewrite is checked the same way before it goes up, and older posts get the same check when we rewrite them:

  • Every fact is read on its primary page the day we write it: WhatsApp's help centre, Meta's developer docs, or the maker's own page for its own product. The page goes in the post's Sources with the date we read it.
  • What we say about ActivityTracker is checked against the product itself, not our marketing pages.
  • A worked example is labelled as made-up, so you never mistake it for a real client.
  • We describe another tool only from its own pages, and we never reuse anyone else's sentences.
  • Each post shows the date it was last updated. When a fact changes, we fix the post and move that date.

Corrections

Found something wrong or out of date? Email leo@activity-tracker.io with the page and the line, and we'll check it and fix the post.