98thPercentile vs Book
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
98thPercentile
This app provides online live classes in Math, Coding, Public Speaking, and English for K-12 students. It focuses on developing critical thinking, problem-solving, and college readiness skills through personalized lessons.
- Online live classes
- Personalized lessons
- Free trial booking
- Digital event registration
- Program overviews
- Skill development
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Welcome to the 98thPercentile mobile app! Designed to make learning easier for both parents and students, 98thPercentile offers a range of online live classes including Math, Coding, Public Speaking, and English, aimed at accelerating your child's learning and skill development from K-12. With personalized lessons tailored to your child's needs, our programs focus on critical skills such as problem-solving, critical thinking, and college readiness. Key Features: Free Trial Booking: Easily book a free trial for any program. Digital Events Registration: Register to various digital events hosted by 98thPercentile. Program Overview: Detailed descriptions of each course to help you make the right choice for your child. Start accelerating your child’s education with 98thPercentile today!
Book
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Book-E-Kids turns reading into something you can watch grow. Every book a child adds plants a tree in their own private forest: starting a book plants a seedling, finishing it grows the tree, and reading it again makes it blossom. Nothing wilts, nothing is scored, and no one is ranked. For children - Add a book by scanning its barcode, searching, or typing its name. - Keep a simple reading log: start, take a break, keep reading, finish. - Watch the forest grow, and pick its look: meadow, autumn, night, or snow. - Every forest also has a list view, so it works with screen readers. For parents - You own the family account; children are profiles, never accounts. - A password gate protects settings, groups, export, and deletion. - Create private reading groups with families you know, by invite code only. - Set a cooperative goal for the group. Everyone reads toward one number. - Export everything as a file or delete the family at any time. What we never do - No ads, no in-app purchases, no tracking, no public profiles. - No messaging between children, no leaderboards, no streaks to lose. - Camera images stay on the device; only the confirmed book is saved. Books are looked up in the Open Library and Google Books catalogues. Reading happens with real books; the app is the log, not the library.
Screenshots
Verdict
The clearest difference is update cadence: Book at every 10 days against 98thPercentile's monthly. 98thPercentile's advantage is iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
98thPercentile ships an update monthly, Book every 10 days. The most recent releases landed on October 30, 2026 and November 6, 2026 respectively.
| Parameter | 98thPercentile | Book |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Monthly | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 36 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | CAREER DRIVE LLC | Sarath Francis |
In-app purchases
98thPercentile
No in-app purchases
Book
No in-app purchases
