Last Updated: January 24, 2026
When you use BetterThumb, we collect the thumbnail images you upload for the sole purpose of AI analysis. We also collect basic account information through our authentication provider (Clerk), such as your email address.
Your uploaded thumbnails are processed by third-party AI models (like Google Gemini and Llama) to generate CTR analysis. We do not use your images to train our own models or share them with unauthorized parties.
We use standard cookies to keep you signed in and tools like PostHog to understand how users interact with our site, helping us improve the tool.
We take reasonable measures to protect your information. However, no internet transmission is 100% secure. Use the service at your own discretion.