
MRR vs ARR: Which Metric to Use for Your Tech Startup?
MRR and ARR measure the same thing differently — and choosing the wrong one for your stage creates investor confusion. Here’s when to use each and how to present them.
Lillian Pierson, P.E., fractional CMO and growth strategist, engineers marketing systems that drive predictable growth for tech startups. With a professional engineering license and 20 years of experience driving growth for Fortune 100 and early-stage companies alike, she bridges product and growth marketing to drive real boots-on-the-ground traction. She's trained 2M+ professionals in AI and data, grown organic channels to 750K+ followers, and authored 11 books including Data Science For Dummies. Lillian helps VC-backed and bootstrapped founders (pre-revenue to $6M ARR) scale through structured playbooks and data-driven systems.

MRR and ARR measure the same thing differently — and choosing the wrong one for your stage creates investor confusion. Here’s when to use each and how to present them.

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