SPIDER LEAGUEThe short answer
Pick The Commissioner if your group already lives in Slack: it runs the league in a channel you already use and judges every photo in the thread. Pick The Spider League if you want a phone app with a card collection.
Spider League apps side by side
| Project | Where you play | Price | Identification | League features | Best for |
|---|---|---|---|---|---|
| The Commissioner Spider League for Slack | Slack | Free | AI species ID with danger and rarity ratings; enlarges unclear photos for a second look | Threaded rulings, appeals with photo evidence, seasons, Hall of Fame, deputy commissioners, weekly standings | Groups that already talk in Slack |
| The Spider League Rockwell Multimedia | iPhone, iPad, Android | $1.99 on the App Store | Computer-vision species ID | Collectible trading cards, group comparisons, commissioner tools for removing entries | Players who want a phone app and a collection |
| spiderleague.app | Web browser | Not listed | Photo-based battle stats | Collections and weekly matchups with friends | Players who want a browser game |
| thespiderleague.com | Fan website | None | None yet | Email waitlist and a static leaderboard | Following a future launch |
Sources: each linked project's public website, App Store listing, or Google Play listing, checked October 7, 2026. Store prices and availability can change.
What sets The Commissioner apart
The Commissioner is a free Slack app that runs Spider League in your workspace: members post photos of spiders they find, and an AI commissioner identifies each species, rates its danger and rarity, awards points, and keeps the season standings.
Every ruling shows its basis for identification, a danger rating, a rarity rating, and the confidence behind the score. Members may appeal once per find, with a better photo if they have one, and the Commissioner answers with its grounds. Officers run seasons and can strike rule-breaking finds.
Where Spider League came from
Tim Robinson described Spider League on Late Night with Seth Meyers in 2025 as a group chat in which he and his friends send each other spider photos and battle over the finds. Every project on this page is an independent fan effort, and none is affiliated with Tim Robinson.