Comparison

SmartScroll vs Kaddy

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

Head to head
About

SmartScroll

This app provides a structured learning experience for students in grades 6-12, covering core subjects with adaptive lessons and practice. It features an AI tutor for assistance and a homework helper, all managed by a parent with a focus on healthy learning habits and privacy.

Highlights
  • Comprehensive curriculum for grades 6-12
  • Adaptive learning feed
  • AI-powered tutor with hints
  • Homework problem photo helper
  • Detailed progress tracking and parent dashboard
  • Ad-free and privacy-focused design
Features
Read full description

Homework Help Should Go Further Getting an answer can solve tonight’s problem. Learning what comes next is different. SmartScroll is a parent-managed learning and AI tutoring app for students in grades 6–12. It brings homework help, short lessons, guided practice, structured AI tutoring, review, and visible progress together in one place. MEET LUMI, YOUR AI TUTOR Students can ask Lumi for help by typing a question or taking a photo. Lumi supports Math, Science, English, History, Spanish, and Financial Literacy with hints, guiding questions, worked examples, and step-by-step explanations designed to teach the method—not simply provide an answer. SmartScroll also includes scheduled, AI-guided tutoring sessions based on the learner’s subject, grade, progress, recent activity, and identified gaps. Lumi is an automated AI tutor, not a live human tutoring appointment, and AI can sometimes be wrong. Important answers should be checked with a teacher or textbook. LEARN LIKE YOU SCROLL SmartScroll turns a familiar vertical feed into short learning interactions. Students move through lessons and practice while the feed responds to what they have worked on and where they may need more support. A structured learning Path shows what comes next, organizes skills into courses and units, and gives students a clear place to continue instead of leaving them with disconnected answers. HOMEWORK PHOTO HELP Take a photo. Type a question. Ask Lumi. Then continue into practice, review, or the learning Path. When photo help is available, images are processed to answer the request. SmartScroll does not save uploaded homework images in its application database or object storage. AI-provider handling is described in our Privacy Policy. SmartScroll is designed to make homework help the beginning of learning—not the end of it. PRACTICE. REVIEW. REMEMBER. SmartScroll uses guided examples, independent practice, review, and remediation to help students revisit skills and build progress over time. Goals, streaks, levels, mastery indicators, and progress feedback make consistent studying easier to understand. BUILT FOR STUDENTS. VISIBLE TO PARENTS. Students get a dedicated learning experience. Parents can link learner devices, review progress demonstrated in SmartScroll, and see tutoring reports across linked devices. Families with Full Program access can support up to three learners. HEALTHY AND PRIVATE BY DESIGN SmartScroll optimizes what students learn, not how long they stay. There is no infinite autoplay, no public social feed, no advertising, and no sale of personal data. Daily goals and natural stopping points help learning end at a healthy time. Students do not create accounts with an email or password. Parent accounts manage access and linked learners. SmartScroll collects only the information needed to operate the learning experience, and parents can review or delete their family’s data. SUBSCRIPTIONS SmartScroll offers auto-renewable monthly and yearly subscriptions through Apple In-App Purchase. Eligible new subscribers may receive an introductory trial. The exact localized price, billing period, trial eligibility, and renewal terms appear before purchase. Payment is charged to the Apple ID at confirmation. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period and can be managed or canceled in Apple ID subscription settings. Privacy Policy: https://smartscroll.org/privacy Terms of Use: https://smartscroll.org/terms Ask. Practice. Review. Progress. SmartScroll. Learn like you scroll.

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

SmartScroll4 screens
Kaddy4 screens

Verdict

The call

SmartScroll and Kaddy are too close to call on the numbers: across 10 compared parameters — price, rating, review sentiment and ratings volume among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. SmartScroll sells 5 in-app purchases, starting at $19.99 per month 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 SmartScroll against 5.0 for Kaddy. Both are backed by a comparable volume of ratings — 14 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

SmartScroll ships an update every 5 days, Kaddy every 8 days. Both last shipped on October 31, 2026.

ScorecardNo meaningful differences
SmartScroll versus Kaddy: the parameters behind the verdict, then further details
ParameterSmartScrollKaddy
PriceFreeFree
Rating5.0 (14 ratings)5.0 (5 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings14 — better5
Update frequencyEvery 5 days — betterEvery 8 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size118 MB37 MB
Age rating9+4+
DeveloperSmartscroll LLCSOPHIE AARONSON JAFFE

Customer experience

SmartScroll

All ratings14 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 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

5 purchases

SmartScroll

Subscriptions5
  • SmartScroll Good14 Days trial$19.991 Month
  • The Tutoring Program14 Days trial$49.991 Month
  • The Full Program14 Days trial$99.991 Month
Show 2 more
  • Tutoring Program (Yearly)14 Days trial$449.991 Year
  • Full Program (Yearly)14 Days trial$899.991 Year
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 SmartScroll free?
SmartScroll 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, SmartScroll or Kaddy?
SmartScroll and Kaddy are both rated 5.0 out of 5 on the App Store, from 14 and 5 ratings respectively.
Do SmartScroll or Kaddy have ads?
Neither SmartScroll nor Kaddy shows ads.
Which is updated more often, SmartScroll or Kaddy?
SmartScroll ships an update every 5 days, and Kaddy every 8 days. Most recently, SmartScroll was updated on October 31, 2026 and Kaddy on October 31, 2026.

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