TikTok Ads is the advertising platform for TikTok, the short-form video app with over 1.59 billion monthly active users. TikTok’s ad reach covers 1.94 billion users worldwide, around 19% of the global population. The platform skews young, with Gen Z and Millennials making up the core audience.
Why advertisers use it
TikTok drives strong product discovery. 42% of Gen Z consumers use TikTok to find products. 36% of direct social purchases in 2025 came through TikTok. Advertisers report an average of $2 in revenue for every $1 spent. The platform averaged a 4.9% engagement rate in the first half of 2025, higher than any other major social network.
Brands or creators pay for TikTok video ads to appear in user’s feeds along with regular content. Advertisers pay using a bidding/auction model, meaning that the advertiser determines what they are willing to pay per optimization goal (likes, impressions or views).
Ad formats in TikTok advertising
In-Feed Ads appear in the For You feed as full-screen vertical video. They blend with organic content and support direct CTAs. TopView Ads appear at the top of the feed when users open the app, giving brands immediate full-screen visibility. Brand Takeover Ads fill the screen on app launch as a 3-second image or short video.
Spark Ads let advertisers boost existing organic posts or creator content directly. This keeps the native feel intact while amplifying reach. Search Ads appear in TikTok’s search results, reaching users who actively look for products or brands.
Collection Ads combine video with a scrollable product gallery. Users browse products without leaving the app. Carousel Ads support up to 10 images in a single unit.
Smart+ automation
Smart+ is TikTok’s automated campaign system. It handles bid strategy, creative selection, and audience expansion using machine learning. TikTok reports meaningful ROAS improvements for conversion objectives compared to manual campaigns. Advertisers control automation at the module level, turning it on or off for targeting, budget, and placements independently.
Targeting
TikTok’s targeting covers demographics, interests, device type, and browsing behaviour. Lookalike Audiences find new users who match the profile of existing customers. The source can be website visitors, customer lists, or app users. Advanced Matching connects hashed customer data (email, phone) to on-site events for more accurate attribution.