Comparison

Prepo vs Kaddy

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

Head to head
About

Prepo

This AI-powered study assistant offers personalized help across all subjects for students. It provides tools like quiz generators, flashcard creators, and essay feedback to aid in homework completion and exam preparation. Scan worksheets or record lectures for instant summaries and study notes.

Highlights
  • AI Tutor for all subjects
  • Homework scanner and math solver
  • Quiz generator and flashcard creator
  • Essay feedback and grammar coach
  • Lecture recording and transcription
  • Personalized to curriculum
Read full description

Prepo is an AI Homework Helper and Study Tutor — One All-in-One AI Tutor. Several Study Tools. Every Subject Covered. In-App Purchase Required: Access to all app features and study tools requires an in-app purchase. Stuck on homework? Need help with math, science, English, writing, or SAT prep? Prepo AI gives students ages 13–18 access to one all-in-one AI tutor, different study tasks, and five powerful learning tools in a single app. Get instant, personalized help for every subject and grade level. SAT, ACT, AP Exams, Common Core, and IB are supported. ONE AI TUTOR FOR EVERY SUBJECT (In-App Purchase Required) Get step-by-step support with: • Math, algebra, geometry, biology, chemistry, physics, English, history, coding, art, and more • Spanish, French, German, Mandarin, Japanese, Italian, Portuguese, and Korean • Homework, essays, research, quizzes, reading, college planning, careers, scholarships, focus, and study confidence Prepo AI tutor does more than provide answers. It explains concepts, shows the method, and helps you learn. Several AI STUDY TASKS (In-App Purchase Required) Complete assignments and prepare for exams with tools including: • Quiz Generator • Flashcard Creator • Study Guide Builder • Concept Explainer • Formula Finder • Word Problem Solver • Graph Plotter • Grammar Coach • Essay Feedback • Vocabulary Builder • Schedule Planner • Exam Calendar • Scholarship Helper • Interview Preparation HOMEWORK SCANNER Scan worksheets, textbook pages, or handwritten homework and get clear explanations. MATH SOLVER Take a photo of a math problem and receive a step-by-step solution for algebra, geometry, pre-calculus, and more. ASSIGNMENT HELPER Improve essays, history papers, science reports, grammar, structure, and clarity before submitting your work. TEXTBOOK READER Upload textbooks, worksheets, study guides, or other PDFs to create summaries, revision notes, and test-prep materials. AI LECTURE RECORDER & AUDIO TRANSCRIPTION Record classroom lectures and convert audio into text with AI. Transform lecture transcripts into smart study notes, summaries, easy-to-understand explanations, practice quizzes, and flashcards. Revise faster, understand complex topics, and prepare for exams more effectively. Personalized to your grade, country, and school curriculum. Download Prepo AI Homework Helper—your all-in-one AI homework helper and study tutor for every subject. Disclaimer: Prepo is an independent educational tool for learning, revision, practice and Mock exams preparation, not affiliated with any school or exam board. AI-generated answers may be inaccurate or incomplete. Review them carefully and follow your school’s academic integrity rules. Terms of Use: https://prepo.me/terms Privacy Policy: https://prepo.me/privacy

About

Kaddy

Organize your high school life with this app. Track classes, grades, and assignments, with tools like flashcards and a quiz generator. Features AI tutoring and college planning, plus social study features.

Highlights
  • Grade tracking and average calculation
  • Assignment management and due date reminders
  • Flashcards with spaced repetition
  • Quiz generator from notes
  • AI-powered study chat
  • College and career planning tools
  • Group study rooms and leaderboards
Features
Read full description

Kaddy is the study app that keeps high school together in one place: your classes, your grades, your due dates, and the tools to actually get the work done. SEE EVERYTHING AT A GLANCE Your grade average, streak, and what's due this week are the first thing you see. Assignments sort themselves by urgency, so the thing due tomorrow is always on top. NEVER MISS A DUE DATE Add homework in seconds. Type it, say it in plain English, or import it from a syllabus or a screenshot. Reminders land before deadlines. ON YOUR HOME SCREEN Widgets show your streak and what's due next, in your class colors. On the Lock Screen, a countdown to midnight shows until you've studied for the day. STUDY TOOLS THAT PULL THEIR WEIGHT Flashcards with spaced repetition that resurface a card right before you'd forget it. A quiz generator that turns your notes into practice tests. A grade calculator that tells you exactly what you need on the final. Focus timers, solo or with a friend. AN AI TUTOR THAT KNOWS YOUR CLASSES Ask Kaddy (Pro) explains what you're stuck on using what you're actually studying. Compass (Bloomer), our college & career planner, turns "I want to get into my dream school" into the classes and extracurriculars that get you there. STUDY WITH FRIENDS Friends, class leaderboards, group study rooms, and streaks that make showing up every day feel like winning. Kaddy is free to use. Optional Pro and Bloomer plans unlock more AI power, but streaks, reminders, and your planner never sit behind a paywall. Pro and Bloomer are auto-renewing subscriptions, billed through your Apple ID. Manage or cancel anytime in Settings › your name › Subscriptions. Terms of Use: https://www.kaddyapp.com/terms Privacy Policy: https://www.kaddyapp.com/privacy

Screenshots

Prepo4 screens
Kaddy4 screens

Verdict

The call

The clearest difference is device support: Prepo at 4 against Kaddy's 2. On price, rating, review sentiment and ratings volume 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. Prepo sells 8 in-app purchases, starting at $4.99 per 7 days and Kaddy sells 4 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

On the App Store both sit at effectively the same score — 5.0 for Prepo against 5.0 for Kaddy. Both are backed by a comparable volume of ratings — 2 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Prepo ships an update every 2 weeks, Kaddy every 8 days. Both last shipped on October 31, 2026.

Scorecard1 real difference · 9 level
Prepo versus Kaddy: the parameters behind the verdict, then further details
ParameterPrepoKaddy
PriceFreeFree
Rating5.0 (2 ratings)5.0 (5 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings25 — better
Update frequencyEvery 2 weeksEvery 8 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size101 MB37 MB
Age rating4+4+
DeveloperELVEESOPHIE AARONSON JAFFE

Customer experience

Prepo

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Kaddy

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

8 purchases

Prepo

Subscriptions4
  • Weekly Pro Access7 Days trial$4.997 Days
  • Monthly Pro Access7 Days trial$6.991 Month
  • Pro Yearly1 Year trial$39.991 Year
Show 1 more
  • Yearly Pro Access7 Days trial$49.991 Year
One-time4
  • Lite$1.99
  • Starter$4.99
  • Standard$9.99
Show 1 more
  • Max$19.99
4 purchases

Kaddy

Subscriptions4
  • Kaddy Pro$7.991 Month
  • Kaddy Bloomer$24.991 Month
  • Kaddy Pro$79.991 Year
Show 1 more
  • Kaddy Bloomer$229.991 Year

Questions

Is Prepo free?
Prepo is free to download, with in-app purchases available.
Is Kaddy free?
Kaddy is free to download, with in-app purchases available.
Which has better reviews, Prepo or Kaddy?
Prepo and Kaddy are both rated 5.0 out of 5 on the App Store, from 2 and 5 ratings respectively.
Do Prepo or Kaddy have ads?
Neither Prepo nor Kaddy shows ads.
Which is updated more often, Prepo or Kaddy?
Prepo ships an update every 2 weeks, and Kaddy every 8 days. Most recently, Prepo was updated on October 31, 2026 and Kaddy on October 31, 2026.

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