Sourcy : sources & fact-check
In-app purchases
Everyone
info
500+
Downloads
About this app
Don't take their word for it. Check the sources.
Every day, millions of videos make claims. But which ones are based on real sources? Sourcy gives you the answer.
Sourcy analyzes a YouTube video and shows you its evidence index—segment by segment, at a glance: which claims are supported by reliable sources (press, scientific journals, institutions), which are contradicted, and which remain unsourced.
What you can do:
🔍 Analyze any YouTube video with AI and see its density of evidence
📚 Consult the real sources behind each claim
🟢🟠 Instantly identify sourced, contradicted, or unverified passages
🤝 Enrich the analysis by suggesting your own sources (validated by the community)
👍 Vote on the clarity and educational value of the videos
Two ways to analyze:
• Your personal Gemini key — free and unlimited
• The Sourcy key — no setup required, you pay as you go with credits
Browsing the catalog, analyses, and sources is always free and ad-free.
What Sourcy IS NOT:
We don't judge "true" or "false," we don't label anything as "misinformation," we don't block any views, and we don't demonetize anyone. We measure the density of evidence — the conclusion is yours. The file size of each video is calculated identically for everyone: no creator can buy a better ranking.
Your privacy is respected: no data is resold, no advertising is done, and the video is never downloaded or stored.
Develop your critical thinking skills. See what's behind the claims.
Download Sourcy and start sourcing.
Every day, millions of videos make claims. But which ones are based on real sources? Sourcy gives you the answer.
Sourcy analyzes a YouTube video and shows you its evidence index—segment by segment, at a glance: which claims are supported by reliable sources (press, scientific journals, institutions), which are contradicted, and which remain unsourced.
What you can do:
🔍 Analyze any YouTube video with AI and see its density of evidence
📚 Consult the real sources behind each claim
🟢🟠 Instantly identify sourced, contradicted, or unverified passages
🤝 Enrich the analysis by suggesting your own sources (validated by the community)
👍 Vote on the clarity and educational value of the videos
Two ways to analyze:
• Your personal Gemini key — free and unlimited
• The Sourcy key — no setup required, you pay as you go with credits
Browsing the catalog, analyses, and sources is always free and ad-free.
What Sourcy IS NOT:
We don't judge "true" or "false," we don't label anything as "misinformation," we don't block any views, and we don't demonetize anyone. We measure the density of evidence — the conclusion is yours. The file size of each video is calculated identically for everyone: no creator can buy a better ranking.
Your privacy is respected: no data is resold, no advertising is done, and the video is never downloaded or stored.
Develop your critical thinking skills. See what's behind the claims.
Download Sourcy and start sourcing.
Don't take it at face value: check the sources of every YouTube video.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
- No data shared with third partiesLearn more about how developers declare sharing
- This app may collect these data typesPersonal info, Financial info and 4 others
- Data is encrypted in transit
- You can request that data be deleted
What’s new
Fixed some minor issues
App support
About the developer
BRYAN EMILE REMY COUTANT
contact@getsourcy.com
1 Lieu Dit Le Vivier
79380 La Foret Sur Sevre
France