Cold Email Subject Lines
5 high-converting subject lines for your next cold email. Pick recipient type, describe your product in a few words - get copy-paste ready lines with psychological triggers.
5 high-converting subject lines for your next cold email. Pick recipient type, describe your product in a few words - get copy-paste ready lines with psychological triggers.
1. AI prompts as shareable links
Trigger: Specificity
Why it works: It describes the product in five words, immediately telling a busy investor exactly what this is about so they can self-qualify in a glance.
2. What if every AI output had a URL?
Trigger: Question
Why it works: It reframes a familiar concept (URLs) against a new paradigm (AI outputs), forcing the investor's brain to pause and consider the implication before moving on.
3. The distribution layer AI is missing
Trigger: Contrast
Why it works: It positions Tappble against a known gap in the AI ecosystem, implying that while everyone builds models and interfaces, nobody has solved sharing — which signals a contrarian thesis.
4. 2,400 links created before we launched
Trigger: Social proof
Why it works: A specific traction number before launch signals organic pull, which is the single strongest early signal most seed investors screen for.
5. How people will share AI outputs
Trigger: Curiosity
Why it works: It makes a bold, calm claim about the future without overselling, creating an open loop that an investor who thinks about AI infrastructure daily will feel compelled to close.
If you have real traction numbers, lead with them. Investors see hundreds of pitches framed around vision and narrative. A concrete, pre-launch metric cuts through immediately because it is falsifiable, surprising, and implies demand — not just an idea. Swap in your actual number if different. If you don't have traction data yet, go with #3 because it positions you as a thesis, not just a product, which gives the investor something to have an opinion about — and opinions start conversations.
1h ago