Best advertising platforms for SaaS

The short answer

For most SaaS products, Google Search comes first: people searching for "[category] software" or "[competitor] alternative" are already shopping. Meta is the cheapest way to drive free trials for a self-serve product under about $50/month. LinkedIn only pays off when the contract value is high (roughly $3k+ a year) and you sell to a job title, because its clicks often cost $8-15. Start with one or two platforms and a clear trial or demo conversion before adding a third.

Where saas businesses usually advertise

1. Google Search. Captures category, "alternative to" and competitor searches from buyers already comparing tools.
2. Meta (Facebook & Instagram). Cheap reach for self-serve trials; strong retargeting of site visitors and trial sign-ups who did not activate.
3. LinkedIn. Targets by job title, company size and industry. Worth it for sales-led products with high contract values.
4. Microsoft Ads. The same search campaigns at lower CPCs, with an older, desktop-heavy B2B audience.

Usually skip: TikTok. Rarely converts for B2B software unless the product is consumer-facing or creator-focused.

How to split a small budget

Under $2k/month: Google Search plus retargeting on Meta. Add LinkedIn only once you can afford at least $50/day there.

Common mistakes

• Bidding on broad keywords like "software" or "app" with no qualifier.
• Optimizing for sign-ups when only activated or paying users matter. Send a deeper conversion back to the platform.
• Launching LinkedIn with a $20/day budget. It will not exit the learning phase.

These are typical patterns, not rules. Your price point, margins and whether people search for what you sell can change the order, which is what the tool above checks.