FlickerSense

Health & Fitness

Only for iPhone

Free · In‑App Purchases

iPhone

Is your lighting causing headaches? Scan any light source in 10 seconds to detect invisible flicker that may be affecting your health and comfort. FlickerSense turns your iPhone into a professional light analyzer. Detect invisible flicker, measure brightness, and check color temperature — all in seconds. Many artificial lights flicker at frequencies invisible to the eye but potentially harmful to your health. FlickerSense uses 240 FPS camera technology to detect flicker up to 120 Hz, helping you identify problematic lighting anywhere you spend time. ▸ DETECT INVISIBLE FLICKER • Measure flicker frequency up to 120 Hz • Detect 100 Hz (50 Hz AC) and 120 Hz (60 Hz AC) flicker • See flicker intensity percentage • Identify potentially problematic lights ▸ MEASURE LIGHT QUALITY • Brightness in lux • Color temperature in Kelvin • Melanopic blue light analysis (Premium) • Personalized recommendations ▸ EASY TO USE • Point your camera at any light source • Get instant, detailed results • Standard or high-precision modes • No account required — works offline ▸ PRIVACY FIRST • All data stays on your device • Camera never recorded or stored • No tracking or advertising ▸ FREE FEATURES • Unlimited scans • Flicker, brightness & color temperature • 7-day scan history • Optional research contribution ▸ PREMIUM FEATURES • Unlimited history + iCloud sync • Trends & analytics with charts • Locations with GPS mapping • Workplace compliance (EN 12464-1, OSHA, WELL) • Before/after scan comparisons • Export as CSV or PDF • Smart recommendations WHY CHECK YOUR LIGHTS? Flickering lights can cause headaches, migraines, eye strain, and difficulty concentrating. Common sources include LED bulbs, fluorescent tubes, dimmable lights, and cheap LED products. WHO IS FLICKERSENSE FOR? • People with eye strain or headaches at work • Those with migraines or photosensitivity • People with autism, ADHD, or sensory sensitivity • Parents, office workers, designers • Lighting professionals TECHNICAL DETAILS • 240 FPS capture for precise measurements • 120 Hz detection limit (Nyquist frequency) • FFT analysis for accurate frequency detection DISCLAIMER FlickerSense is not a medical device. Results are estimates based on camera analysis. Consult healthcare professionals for medical concerns. support@ephyrtech.com https://landing.ephyrtech.com/privacy-policy/ https://landing.ephyrtech.com/terms-of-use/

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The developer, EphyrTech OÜ, 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 Not Linked to You

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

    • Location
    • Diagnostics
    • Other Data

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
    • EphyrTech OU
  • Size
    • 16.2 MB
  • Category
    • Health & Fitness
  • Compatibility
    Requires iOS 18.0 or later.
    • iPhone
      Requires iOS 18.0 or later.
  • Languages
    • English
  • Age Rating
    9+
  • In-App Purchases
    Yes
    • Lifetime Premium $22.99
    • Premium Monthly $3.99
    • Premium Yearly $22.99
    • Learn More
  • Copyright
    • © EphyrTech OÜ
  • Privacy Policy

    • Supports

    • Family Sharing

      Some in-app purchases and subscriptions may be shareable with your family group when Family Sharing is enabled. Learn More