Glossary
Every term Arena uses, defined.
Short, quotable definitions. If a word on a page elsewhere on tryarena.app is unclear, it is probably defined here.
Pre-PMF
Pre-product-market fit. The stage where a founder has shipped something but has zero to ten customers and no evidence that the market wants it yet. Arena is designed for exactly this stage.
Scout
An Arena AI agent with a single-platform mandate. Arena ships five: the Reddit Scout, the X Scout, the HN Scout, the LinkedIn Scout, and the Product Hunt Scout. Each reads your site and searches its own platform in parallel for real people already describing your product.
Fit Score
A 0-to-100 score Arena assigns to every surfaced lead based on how closely their public post matches the product you built. A lead complaining about the exact workflow you solve scores high. A lead mentioning your general industry scores low. Product-match, not industry-match.
Product-match vs industry-match
Product-match is scoring a lead by whether their post describes the specific product you ship. Industry-match is scoring by whether they work in a matching vertical. Industry-match is what most lead tools do. Arena does product-match. Most of the signal comes from what a person said, not where they work.
Early Adopter Finder
Arena's primary feature. You paste a URL, five scouts search five platforms in parallel, and you get fit-scored leads with the exact source quote, a link back to the post, and a draft reply. The core move Arena exists to do.
Branch-off discovery
A follow-up Arena action. "Find more people like this one". You pick a lead that feels like a strong match and Arena runs a new discovery pass using that lead as a reference point, biasing toward similar language, subreddits, and follower graphs.
Competitor Radar
Arena's continuous competitor-monitoring service. Discovers competitors across the same five platforms with a threat score (0 to 100), then watches each one with hourly site crawls. Pricing changes, feature launches, team hires, redesigns, funding rounds. Classified by severity (critical, important, minor) and delivered to a real-time intel feed.
Threat Score
A 0-to-100 score Radar assigns to each discovered competitor, combining their reach, funding, product-overlap with you, and launch momentum. Higher means "watch this one closely".
Hijack
Arena's competitor-customer-conversion feature. You pick a competitor and Arena searches five platforms for people who use that product and express frustration. Each lead gets a switch score with the exact complaint quote and a draft reply that references the complaint. Can be scheduled to run every 6 hours, daily, or weekly.
Switch Score
A 0-to-100 score Hijack assigns to every surfaced lead, combining four signals: verified usage of the named competitor (40%), frustration signal in the lead's own words (25%), reachability through public channels (20%), and switch readiness (15%, whether they are actively evaluating alternatives).
Signal Stream
Arena's real-time feed of customer signals once feedback is actually flowing. Aggregates messages from optional Slack, Linear, PostHog, Notion, and Jira integrations. Each signal is auto-classified into one of five types: pain point, feature request, bug report, positive feedback, or analytics insight. Useful post-signup; not required to find your first users.
AI Credit
The per-workspace pool that funds Arena's LLM usage. Free trial ships with $5 of AI credit. Lite ($8/month) and Starter ($20/month) both include $20/month of AI credit. AI usage is metered at exact provider cost (Anthropic, OpenAI) with zero Arena markup. Credits reset at the start of each billing period. Paid plans can opt into Extra Usage to keep AI features running past the included credit.
Draft reply
A one-message reply Arena writes for every surfaced lead, in your product's voice, referencing the exact post. You send from your own account (Arena never sends on your behalf). You can edit before sending.
Five platforms
The set of public-post platforms Arena searches: Reddit, X (Twitter), Hacker News, LinkedIn, and Product Hunt. One scout per platform, all five running in parallel, chosen because this is where early-stage buyers describe problems in their own words.