Support

An app that sends one prompt to several AI models at once and shows their answers side by side. An AI Referee reads the answers and names a winner, with its reasons.

Claude (Anthropic), GPT (OpenAI), Gemini (Google) and Grok (xAI). You can run one, two, three or all four on the same prompt.

A fight where the answers are labelled Fighter A, Fighter B and so on, so you judge the answer without knowing which model wrote it. You reveal the names when you are ready.

No. The Referee is an AI model giving its opinion of the answers to one prompt. It can be wrong, and so can the fighters. Check anything important yourself.

Fight Klub is coming soon to the App Store and Google Play, with a web version alongside.

Because a fight sends your prompt to outside AI companies so their models can answer. The app names them and asks first. The privacy policy lists the providers and what is sent.

1. Open Fight Klub and sign in.
2. Go to your account settings.
3. Choose Delete account, and confirm.

This deletes your account, your prompts and your saved fights. If you cannot open the app, email support@fightklub.ai from the account’s address and we will delete it for you. Cancel any store subscription first: deleting the account does not cancel it.

Use the reset link on the sign-in screen. If the email does not arrive, check your spam folder, then write to us.

1. Open the Settings app and tap your name.
2. Tap Subscriptions.
3. Tap Fight Klub, then Cancel Subscription.

You keep your plan until the end of the period you have paid for.

1. Open Google Play and tap your profile picture.
2. Tap Payments & subscriptions, then Subscriptions.
3. Tap Fight Klub, then Cancel subscription.

Sign in on the web, open your account page and choose Manage subscription. If you get stuck, email us and we will cancel it for you.

Purchases made in the iPhone app are refunded by Apple (reportaproblem.apple.com), and purchases in the Android app by Google Play. For a purchase made on the web, email us. The terms have the detail.

Yes. Sign in with the same account and your plan follows you.