Castle Collector
Marketplace to buy and sell castles in Europe, UK and US.
Revenue is verified with
Stripe API key.Last updated: Sep 17, 2026, 10:15 PM
Domain Rating
castlecollector.com
Ahrefs Domain Rating measures backlink profile strength on a 0 to 100 logarithmic scale.
Market
Product updates
Discover more startups
Advanced SearchAnonymous Startup
AI-powered makeup app. Users upload a selfie, and the app generates personalized makeup looks and previews them on their own face before they apply anything. Includes detailed face analysis, product and shade recommendations, and step-by-step video tutorials. Available on web and mobile (iOS and Android). B2C, subscription-based, growing across Europe.
Revenue (30d)
$52k
MRR
$50k
Total
$170k
Stealth Venture
Social app to make friends all over the world. 200K MAU. 1000 new users everyday, without any marketing. Extremely strong ASO/Conversion/IP 1.5 MILLIONS messages shared each day Avg time spent per day in the app >20 min (even higher than instagram!) 80K+ reviews, 4.7 stars avg Nearly 10 years of proven track records. HUGE potential if distribution added to it. (competition app making >5M+ MRR)
Revenue (30d)
$38k
MRR
$14k
Total
$355k
Comp AI
The fastest way to get compliant with cyber security frameworks like SOC 2 and ISO 27001.
Revenue (30d)
$718k
MRR
$12k
Total
$5.4M
Stealth Venture
The easiest to use and fastest growing AI powered YouTube thumbnail generation loved by thousands of creators.
Revenue (30d)
$43k
MRR
$45k
Total
$497k
Anonymous Startup
Unified social media API - the only usage-based pricing API in this market. For developers, agents and content management automations. Covering 10+ social network connections with 1 single API.
Revenue (30d)
$9.9k
MRR
$9.2k
Total
$49k
coldcaller.pro
coldcaller.pro is a French B2B prospecting SaaS selling qualified cold-calling leads to solopreneurs and agencies. Leads come enriched with the owner's direct mobile + email. Subscriptions €19–99/mo, no free trial, ~9% visitor-to-paid conversion, €2.4k MRR with minimal fixed costs (93% margin). 100% community driven acquisition (word of mouth). Runs solo — big upside with paid ads or a sales team.
Revenue (30d)
$22k
MRR
$3.9k
Total
$73k