Trendoline

Video Challenges & Duels

Only for iPhone

Free

iPhone

Challenge the moment with the world. This isn't a feed — it's a competition. Go head-to-head, and the crowd votes for the winner. Your move. Trendoline is the challenge network where every video is a moment. 24 hours to deliver. Nominate three friends. Watch the chain explode. Real challenges with real deadlines: film your take, beat the clock, and challenge the moment with the world. HOW IT WORKS - Start a challenge or join a live one before the timer runs out - Film your take and post it in the moment - Nominate friends to keep the chain going - The community votes, and the best rise up the leaderboard WHY TRENDOLINE - Live 24-hour challenges that keep every moment real - Winners decided by the community, not an algorithm - Original sounds, effects, and your own creativity - A challenge for everyone: trick shots, dance, comedy, cooking, fitness, and more A POSITIVE COMMUNITY Built for friendly competition and creativity. Every post is moderated; report or block anyone in a tap; our team reviews reports within 24 hours. Challenge the moment. Download Trendoline and start a chain.

Ratings & Reviews

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The developer, Stairtup Labs, LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Location
    • Contact Info
    • User Content
    • Identifiers
    • Usage Data
    • Diagnostics
    • Other Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Contacts

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Stairtup Labs, LLC
Size
  • 78 MB
Category
  • Photo & Video
Compatibility
Requires iOS 17.0 or later.
  • iPhone
    Requires iOS 17.0 or later.
Languages
English and 36 more
  • English, Albanian, Arabic, Bulgarian, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Oriya, Persian, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
Age Rating
13+
  • 13+
  • Learn More
  • Frequent
    Contests

    Infrequent
    Cartoon or Fantasy Violence
    Realistic Violence
    Profanity or Crude Humor
    Mature or Suggestive Themes
    Horror/Fear Themes
    Alcohol, Tobacco, Drug Use or References
    Sexual Content or Nudity
    Guns or Other Weapons

    Contains
    Messaging and Chat
    User-Generated Content
Copyright
  • © 2026 Stairtup Labs, LLC
  • Developer Website
  • Privacy Policy