No easy way to see what changed on websites, apps, or algorithms

Users need a simple way to track and view changes to websites, app UIs, algorithms (Google, Instagram), pricing, or bank interfaces since the previous day or last visit.

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FL score

62

out of 100

Verdict

VALIDATE

medium confidence

Competition

No competitor data yet

Trend

No signal yet

A tool that shows you what changed on any website, app, or algorithm since you last looked at it.

The pain

People waste time re-reading pages to spot what's different. Banks change terms quietly. Instagram algorithm shifts kill creator reach overnight. Pricing changes go unnoticed. You have no record of what was there before.

The gap

No single tool captures visual and functional changes across web, mobile apps, and algorithmic feeds. Screenshots exist but require manual comparison. Browser extensions handle websites only. Nothing tracks algorithmic changes or closed systems.

Build angle

Start with website change detection (easiest technical problem). Build a visual diff tool that shows before/after screenshots side-by-side with highlighted changes. Target power users first: creators tracking Instagram algorithm, finance people monitoring bank sites, deal hunters watching pricing. Expand to apps and algorithms only if demand proves real.

Strengths

  • Solves a real friction point, manual change detection is tedious
  • Clear use cases exist: pricing monitoring, algorithm tracking, terms changes
  • Technical foundation is straightforward for websites (screenshot + diff)
  • Low customer acquisition cost if you target niche communities first

Risks

  • Algorithmic change detection is nearly impossible without API access or reverse engineering
  • Mobile app tracking requires device automation (expensive, fragile)
  • Willingness to pay is unclear, people tolerate manual checking today
  • Competitors exist in narrow segments (price trackers, website monitors) but fragmented
  • Legal risk if you scrape or monitor closed platforms aggressively
  • Retention depends on users checking the tool regularly, habit formation is hard

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