Monitor competitor pricing, product pages, docs, or legal terms. Get a screenshot diff and plain-English summary in your inbox every morning.
Free during early access. First 50 signups lock in founding member pricing forever.
Paste any webpage you want to watch. Competitor pricing page, product changelog, TOS — anything.
Every day, DiffGoblin captures a full-page screenshot and compares it to yesterday's version.
When something changes, you get an email with a visual diff and AI-generated summary of what moved.
If you've ever manually refreshed a competitor's page, this is for you.
Watch competitor pricing pages, feature lists, and positioning. Know when they change tiers, add features, or adjust messaging.
Track when competitors update their landing pages, add new content sections, or change their keyword targeting.
Monitor TOS, privacy policies, and regulatory pages. Get alerted when vendors or partners change their terms.
Watch how other products evolve their onboarding, dashboards, and feature announcements over time.
Here's what a real DiffGoblin report looks like when a competitor changes their pricing.
AI Summary: Acme raised their Starter tier from $29 to $39/mo (+34%). New "Growth" tier added at $149/mo between Pro and Enterprise. Free trial shortened from 14 to 7 days. These changes suggest a move upmarket.
Pay for what you watch. Cancel anytime.
72% of B2B SaaS companies changed their public pricing in 2025. Were you watching?
Quick answers to common questions.
We take a full-page screenshot of your URL every day and compare it pixel-by-pixel against the previous version. When pixels change, our AI reads the diff and summarizes what happened in plain English.
Not yet — that's on the roadmap. Right now we monitor any publicly accessible URL. Great for pricing pages, landing pages, TOS, and competitor sites.
Each unique URL you add counts as one. Our Scout plan includes 5, Pro includes 25, and Team includes 100. You can swap URLs anytime.
Most change monitors just highlight what changed. DiffGoblin adds an AI summary that tells you why it matters — "Acme raised Starter from $29 to $39/mo, shortened trial from 14 to 7 days." Context, not just pixels.
DiffGoblin watches so you don't have to. Join the early access list.