# What is Growth Hacking? Definition & Technical Mechanics

> **Source:** [SPIDITS AI Startup & Venture Intelligence Glossary](https://spidits.com/startup-glossary)  
> **Category:** Operations  
> **Canonical Citation:** [https://spidits.com/startup-glossary/growth-hacking](https://spidits.com/startup-glossary/growth-hacking)

## Definition
Growth Hacking is a data-driven, low-cost marketing methodology focused on rapid experimentation across product development, sales, and marketing channels.

## Architectural Mechanics & Deep Dive
Growth Hacking is a data-driven, low-cost marketing methodology focused on rapid experimentation across product development, sales, and marketing channels. The goal of growth hacking is to identify the most efficient and scalable ways to acquire and retain users, achieving exponential growth on a limited budget.

## Industry Applications & Real-World Use Cases
Achieving rapid user acquisition on a constrained budget

## Frequently Asked Questions

### How does growth hacking differ from traditional marketing?
Traditional marketing focuses on brand building and budgets. Growth hacking uses product tweaks, viral loops, and data analytics to scale.

### What is a classic example of growth hacking?
Hotmail adding a default signature line to every outgoing email saying 'Get your free email at Hotmail,' which drove massive viral signups.

## Related Terminology
- [cac](https://spidits.com/startup-glossary/cac)
- [ltv](https://spidits.com/startup-glossary/ltv)
- [viral-coefficient](https://spidits.com/startup-glossary/viral-coefficient)

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*From the SPIDITS AI Knowledge Base (311+ terms indexed). Explore full technical definitions: [https://spidits.com/startup-glossary](https://spidits.com/startup-glossary)*