Comparison

Whyzer vs One Smart Puppy

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Whyzer

This app provides clear, age-appropriate explanations for children's endless "why" questions, using AI to tailor answers to their specific age. It offers multiple ways to ask questions and features like read-aloud and related topics for deeper learning.

Highlights
  • AI-generated age-appropriate explanations
  • Voice and photo input for questions
  • Read Aloud mode
  • Related topic suggestions
  • Child profiles with age customization
  • Adjustable detail levels (Quick, Default, Detailed)
Features
Read full description

Whyzer 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 Whyzer is for. Using AI, Whyzer 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. Whyzer 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 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 to 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. Whyzer 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 • Whyzer Pro: $4.99 per month for 40 questions, 5 AI illustrations, and 5 Read Aloud plays 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

About

One Smart Puppy

This AI-powered platform sparks children's curiosity by answering their "But why?" questions in any language. It uses an AI dog to turn everyday wonderings into engaging discoveries, fostering a love for learning and building confidence.

Highlights
  • AI-assisted learning
  • Multilingual support
  • Sparks curiosity
  • Engaging conversations
  • Personalized discovery
  • Builds confidence
Features
Read full description

One Smart Puppy is an AI-assisted learning companion that sparks curiosity in children, and it works in any language your child speaks! Meet Iggy, our friendly AI dog. Iggy brings learning to life by answering every child's favorite question: "But why?" Through engaging conversations and thoughtful follow-up questions, Iggy turns everyday curiosity into meaningful discovery. WHAT'S INSIDE • Ask Iggy "but why" questions by voice or text, in any language: Iggy detects your child's language and answers in it, with no settings needed. English, Spanish, French, German, Portuguese, Italian, Japanese, Korean, Chinese, Arabic, Hindi, Russian and dozens more. • Math Adventure: level-by-level math games, from counting to number ninja challenges. • Bedtime Stories: calm, read-aloud stories narrated by Iggy. • Reading & Writing: letter sounds, sight words, word building and writing practice. • American History lessons: short, narrated lessons about people and events from America's past. • World Explorer: visit countries, landmarks and famous cities around the globe. • Space & Animals: explore planets, stars and creatures big and small. • Parent Dashboard: see your child's learning progress, questions asked and recent conversations. • Family Sharing: share the monthly plan with your family through Apple Family Sharing. • Parent verification: purchases, outside links and the Parent Dashboard are protected by a parent-verification math gate. Iggy is an AI; parents can review and report any answer. By encouraging children to explore their questions naturally, One Smart Puppy makes learning exciting and helps uncover each child's unique talents, strengths and interests, building confidence and a lifelong love of learning. SUBSCRIPTION DETAILS — One Smart Puppy is free to download and includes 3 free questions every day. Unlock unlimited learning: Monthly $7.99/month or Annual $59.99/year. New subscribers get a 7-day free trial. After the trial, the subscription renews automatically at the selected price unless you cancel at least 24 hours before the current period ends. Payment is charged to your Apple Account. Manage or cancel anytime in your Apple Account settings. Prices may vary by country. Purchases require parent verification. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://butwhylearning.com/privacy-policy

Screenshots

Whyzer4 screens
One Smart Puppy4 screens

Verdict

The call

The clearest difference is rating: One Smart Puppy at 5.0 against Whyzer's 4.0. One Smart Puppy also leads on monetization model (free vs freemium). On price, ratings volume, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Whyzer sells 1 in-app purchase, starting at $4.99 per month and One Smart Puppy sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

One Smart Puppy holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

UpkeepUpdate frequency

Whyzer ships an update every 5 days, One Smart Puppy every 9 days. The most recent releases landed on October 19, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 7 level
Whyzer versus One Smart Puppy: the parameters behind the verdict, then further details
ParameterWhyzerOne Smart Puppy
PriceFreeFree
Rating4.0 (3 ratings)5.0 (2 ratings) — better
Number of ratings3 — better2
Update frequencyEvery 5 days — betterEvery 9 days
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better16.4
Further details — not scored
Size95 MB86 MB
Age rating4+4+
DeveloperCommonwealth Business SystemsMatthew Kennard

Customer experience

Whyzer

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%

One Smart Puppy

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Whyzer

Subscriptions1
  • But Why?? Premium Subscription$4.991 Month
2 purchases

One Smart Puppy

Subscriptions2
  • VIP First User7 Days trial$7.991 Month
  • VIP First User Annual7 Days trial$59.991 Year

Questions

Is Whyzer free?
Whyzer is free to download, with in-app purchases available.
Is One Smart Puppy free?
One Smart Puppy is free to download, with in-app purchases available.
Which has better reviews, Whyzer or One Smart Puppy?
One Smart Puppy is rated higher. Whyzer averages 4.0 out of 5 from 3 ratings, while One Smart Puppy averages 5.0 from 2 ratings.
Do Whyzer or One Smart Puppy have ads?
Neither Whyzer nor One Smart Puppy shows ads.
Which is updated more often, Whyzer or One Smart Puppy?
Whyzer ships an update every 5 days, and One Smart Puppy every 9 days. Most recently, Whyzer was updated on October 19, 2026 and One Smart Puppy on October 28, 2026.

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