Spindle Books vs POLYMall
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Spindle Books
This digital reading program uses a 5-step method to help children acquire languages naturally. It incorporates interactive games, audio storytelling, reading practice with accent options, and speaking exercises to enhance language learning efficiency.
- 5-step Multi-dimension Reading
- Brain relaxer word games
- Audio storytelling with hidden text
- Reading with accent and speed control
- Speaking practice with native speaker audio
- Dynamic after-reading activities
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Spindle Books™ is cutting edge digital reading programme and globally approved technology, optimized for language acquisition. Spindle Books™ applies the principle of natural language acquisition in order for our children to become bilingual. Through the 5-step Multi-dimension Reading, children can expect 5 times higher language learning efficiency. [Multi-dimension Reading] - 1st: Warm Up. Brain relaxer word game - 2nd: Listen Up. Vivid audio story telling (texts are hidden) - 3rd: Read. British/American accent, speed control, and even recording. - 4th: Speak Up. Listening to native speaker and speak aloud as repeating - 5th: Wrap Up. Dynamic and diverse after-reading activities If you have any questions, please do not hesitate to contact our customer service(+82-2-1566-2246) for help.
POLYMall
This app serves as a dedicated shopping portal for educational materials from KOREAPOLYSCHOOL. It allows registered users to easily browse and purchase textbooks and other required items by student, semester, or campus. Users can also group items into sets for convenient ordering and track their purchase history.
- Purchase textbooks by student
- Select by semester and campus
- Bundle items into sets
- Browse by category
- View order history
- Exclusive for POLY School members
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KOREAPOLYSCHOOL 교재 쇼핑몰 입니다. POLYmall 앱으로 언제 어디서나 간편하게 주문하세요! [주요 기능] 1) 학생 선택 - 학생의 학기별, 캠퍼스별 필요구매 교재 선택이 가능합니다. 2) 세트상품 구매 - 필요한 상품을 세트상품으로 묶어두어, 손쉽게 구매가 가능합니다. 3) 카테고리별 상품 구매 - 카테고리별로 상품을 선택하여 구매할 수 있습니다. 4) 주문내역 조회 - 주문내역을 조회하여 확인 할 수 있습니다. * 본 앱은 POLY School 회원 전용 앱으로, 회원에 한해 주문이 가능합니다.
Screenshots
Verdict
The clearest difference is review sentiment: Spindle Books at 100% against POLYMall's 25%. Spindle Books also leads on iOS requirement (9.0 vs 11.0). POLYMall's advantage is update cadence (every 4 months vs every 8 months). On price, ads, in-app purchases and monetization model 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.
Spindle Books ships an update every 8 months, POLYMall every 4 months. The most recent releases landed on September 30, 2026 and October 6, 2026 respectively.
| Parameter | Spindle Books | POLYMall |
|---|---|---|
| Price | Free | Free |
| Rating | 1.5 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews — better | 25.0% of reviews |
| Number of ratings | 2 — better | — |
| Update frequency | Every 8 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 11.0 |
| Further details — not scored | ||
| Size | 65 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | iPortfolio Inc. | Poly Inspiration, Inc. |
Customer experience
Spindle Books
POLYMall
In-app purchases
Spindle Books
No in-app purchases
POLYMall
No in-app purchases
