Tampines has a very large resident base spread over big estates, so Facebook and Instagram (run together as Meta ads) can show an ad to a small slice of it and still reach plenty of people.
That helps with testing. A servicing offer can go to Tampines East and Tampines West at different times from the Simei end, and a resale valuation ad can reach owners in older flats while an executive condo message goes elsewhere.
Weekends pull people to Our Tampines Hub, Century Square and the malls, so ads built around family time get attention, while evenings suit a WhatsApp reply. Island-wide firms advertise here too, so a specific place and a specific offer matter more than a slogan.
Agents work under CEA, and trades may hold NEA, BCA or PUB licences, so claims must be true. Budgets are in S$, with GST at 9% stated.