But Why??

Easy explanations

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Turn any "but why?" into a fun, age-perfect explanation. Ask by voice or text, get custom illustrations, and listen with read-aloud. Free to start But Why? turns endless questions into real learning moments. Every parent knows the feeling. Your kid looks up and asks "But why is the sky blue?" or "But why do we dream?" — and you want to give them a real answer, not a vague "it's complicated." That's exactly what But Why? is for. Using AI, But Why? generates clear, age-appropriate explanations tailored to your child's actual age. A four-year-old and a twelve-year-old both deserve good answers — they just need them explained differently. But Why? handles that automatically. WAYS TO ASK • Type your question • Speak it out loud — voice input transcribes automatically • Snap a photo — point the camera at anything and ask about it WHAT YOU GET BACK • A clear, readable answer written for your child's specific age • AI-generated illustrations (Premium) that bring concepts to life • Read Aloud mode — the app reads the explanation in a natural voice • Related topics — tap any suggested topic to explore further • Follow-up questions — keep the conversation going Choose how much detail you want: Quick, Default, or Detailed. CHILD PROFILES Create a profile for each child with their name and age. But Why? automatically adjusts vocabulary, examples, and depth. Switch between kids with a single tap. BUILT FOR PARENTS No ads, no social features, no rabbit holes. Just questions and answers. The interface is warm, colorful, and easy to navigate. PLANS • Free — 3 questions per month • Basic — 40 questions per month • Premium — 150 questions per month, plus AI-generated illustrations Subscriptions are billed monthly and can be managed or cancelled anytime in your App Store account settings. Terms of Use: https://but-why.app/terms

Ratings & Reviews

  • 5.0
    out of 5
    2 Ratings

Completely new look. The owl mascot now floats directly on the screen with transparent animations instead of sitting in a white box. Added playful bubbles that pop and float across every screen. Suggested questions on the home screen so you always have something fun to ask. Fixed dark mode showing up when it shouldn't.

Version 1.4

The developer, Commonwealth Business Systems, 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:

    • Contact Info
    • Identifiers
    • Usage Data
    • Diagnostics

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
  • Commonwealth Business Systems, LLC
Size
  • 96.7 MB
Category
  • Education
Compatibility
Requires iOS 15.1 or later.
  • iPhone
    Requires iOS 15.1 or later.
  • iPod touch
    Requires iOS 15.1 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
4+
In-App Purchases
Yes
Copyright
  • © 2026 Commonwealth Business Systems, LLC
  • Developer Website
  • 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

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