OneBookStore vs Khmer Math Formulas
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OneBookStore
Access a vast collection of free Cambodian literature, including novels, poems, magazines, and historical stories. This universal app supports iOS devices and offers gesture controls for managing your library.
- Free Cambodian literature access
- Novels, poems, and magazines
- Rare classic stories
- Universal app support
- Gesture controls for library management
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OneBookStore is the first Cambodia Digital Bookstore which you can access numerous free Cambodian literatures, novels, poems, magazines and even rare classic stories dated back to the 19th century. FEATURES - Universal App (support for iPhone, iPod Touch and iPad iOS 12 or later) - Gesture Supports: Long Press to Delete Book or Redownload Book CONNECT US - Visit us at http://www.ioskhmer.com - Follow us on: http://www.twitter.com/ioskhmer - Like us on: http://www.facebook.com/ioskhmer - Found bug? Contact us: ioskhmer@gmail.com
Khmer Math Formulas
Access a comprehensive collection of math formulas for grades 7-12, designed with a simple and user-friendly interface. This app serves as a valuable study assistant for students, making it easy to browse and find the formulas you need.
- Grade 7-12 math formulas
- Simple user interface
- Easy formula browsing
- Study assistant
- Useful materials
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Khmer Math Formulas is now available for iOS. In iOS version, Khmer Math Formulas is designed with simple UI to fit user experience. In this app, Most of formulas are collected such as: - Grade 7-9 - Grade 10 - Grade 11 - Grade 12 - Formulas and other useful materials Now you just use your finger to browse any formulas what you want. This app is really pretty good for all students. It is an assistant to improve your studying.
Screenshots
Verdict
The clearest difference is in-app purchases: Khmer Math Formulas at none against OneBookStore's 10. Khmer Math Formulas also leads on rating (4.3 vs 4.0) and review sentiment (100% vs 80%). OneBookStore's advantage is update cadence (every 2 months vs every 17 months). On price, ads 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. OneBookStore sells 10 one-off in-app purchases. Khmer Math Formulas asks for nothing beyond the download.
Khmer Math Formulas holds the better App Store score, 4.3 against 4.0. That said, the two scores are not equally well evidenced: Khmer Math Formulas has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 80% of OneBookStore's written reviews are positive against 100% of Khmer Math Formulas's.
OneBookStore ships an update every 2 months, Khmer Math Formulas every 17 months. The most recent releases landed on September 24, 2026 and October 17, 2026 respectively.
| Parameter | OneBookStore | Khmer Math Formulas |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) | 4.3 (6 ratings) — better |
| Positive reviews | 80.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 6 — better |
| Update frequency | Every 2 months — better | Every 17 months |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 18 MB | 39 MB |
| Age rating | 9+ | 4+ |
| Developer | Sok Rotha | Cheab Kunthea |
Customer experience
OneBookStore
Khmer Math Formulas
In-app purchases
OneBookStore
- Katelok Part 2 Book$0.99
- Folktales Part 1$0.99
- Folktales Part 2 Book$0.99
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- Folktales Part 3 Book$0.99
- Folktales Part 4 Book$0.99
- Folktales Part 6 Book$0.99
- Folktales Part 5 Book$0.99
- Choun Nath Philosophy$1.99
- Neang 12 Story Book (Poem)$2.99
- Neang 12 Story Book (Summary)$2.99
Khmer Math Formulas
No in-app purchases
Questions
Is OneBookStore free?
Is Khmer Math Formulas free?
Which has better reviews, OneBookStore or Khmer Math Formulas?
Do OneBookStore or Khmer Math Formulas have ads?
Which is updated more often, OneBookStore or Khmer Math Formulas?
Other comparisons
