HK P.1 & P.2 Math vs Coding Galaxy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HK P.1 & P.2 Math
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The objective of this app is designed for students they are from age between 5 - 6 years old & between 7 - 10 years old in Hong Kong Primary School Level 1 & 2 and any student who suitable use this mathematics exercise in any country. For Level 1: This app provide 0 to 20 in addition and subtraction exercise. For Level 2: This app provide thousand values only that enable number of two to three times addition or subtraction at mathematics exercise; It also provide a vertical calculation format randomly for hint, in case of no vertical format provide, please write your vertical format with colour pencil at rough area section. This app has Chinese and English interfaces that can provide to Chinese students and International students. For project time restriction of this app, this app only support iOS 9.0 or above and portrait orientation. This 1.0 is a first version and it will be improved/enhanced for more features according to the studies level in future. If any enquiry, please send email to: apple.development@outlook.com Enjoy. --------------------------------------------------------------- 本程式目的是設計於給香港小學生一、二年級 或 任何國家適用的兒童作數學練習用途、適合年齡介乎於大約五至十歲。 在於一年級: 本程式提供0至20的加和減的數學練習。 在於二年級: 本程式固定提供於 四個位(千位)的加、減 數學 和 一至二連續加、減數學練習;另外還會隨機提供直式以作提示計算練習、如在沒有直式的題目計算時,請自行用上彩色筆在草稿區內列出以方便計算。 本程式提供中文和英文的使用界面。 此程式因設計時間關係,現只支援 iOS 系統9.0或以上和垂直畫面。 這是1.0初版版本,而未來會跟據學習進度來被更新追加更多功能和改善。 如有任何查詢, 請電郵至: apple.development@outlook.com 祝使用愉快。 *Thanks for Ray Wenderlich's knowledge sharing* =============================================== All rights reserved by HK P.1,2 Math developer.
Coding Galaxy
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Learn the Technology ABCD in one single app at your own pace, with Coding Galaxy: City X. No matter you are kid or adult, an absolute beginner or tech guru, you can learn and apply the latest technology including Artificial Intelligence (AI), Blockchain, Cloud Computing, Big Data by digital learning, collaborative activities and in-class sharing with design thinking. By applying design thinking concept, students develop their technological capability, understanding, and awareness, it helps to strengthen students’ high level of thinking skills, analyze evaluate problems and design solutions with advanced technologies. Highlighted Features • Word of the Day - 100+ Tech Cards help you to learn the real meaning of the technical terms every day • Cases Studies of Future City Development - Explore the development of City X including Smart Transportation, Smart Citizen, Smart Living, Smart Agriculture and more • Theme-based learning - Learn Technology ABCD with a purpose with real-life applications • Learning Report - Track your learning progress with achievement Apart from self-learning, lesson plans and teaching tools are available for in-class teaching and school use, feel free to contact us for more information. To learn more, visit www.codinggalaxy.com/cityx About Coding Galaxy Coding Galaxy is an award-winning learning solution designed for K–12 students to develop computational thinking skills and get familiar with concepts in coding and innovative technologies. With engaging lessons, learning games and projects for 21st century technology education, we foster and shape next generation innovators. Coding Galaxy - Computational Thinking learning series has been qualified by Education Alliance Finland, recognized by SIIA CODiE Award, Asia Smart App Awards and Hong Kong ICT Awards. As a passionate team in education, we will continue to enhance teaching and learning with technologies. ======================================= Subscription pricing and terms: Coding Galaxy: City X offers an auto-renewing subscription, CGSC Monthly Plan, at US$4.99/month or, CGSC Yearly Plan, US$39.99/year to provide you with unlimited access to the Premium features while you maintain an active subscription. Payment will be charged to the credit card connected to your iTunes Account when you confirm the initial subscription purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. Your account will be charged for renewal within 24-hours prior to the end of the current period, and the cost of the renewal will be identified. You may manage your subscription and auto-renewal may be turned off by going to your Account Settings after the purchase. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription, where applicable. Terms and Conditions https://codinggalaxy.com/terms Privacy Policy https://codinggalaxy.com/privacy
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Verdict
The clearest difference is in-app purchases: HK P.1 & P.2 Math at none against Coding Galaxy's 2. Coding Galaxy's advantage is update cadence (fortnightly vs every 30 months). On price, ads, device support and iOS requirement 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. Coding Galaxy sells 2 in-app purchases, starting at $4.99 per month. HK P.1 & P.2 Math asks for nothing beyond the download.
HK P.1 & P.2 Math ships an update every 30 months, Coding Galaxy fortnightly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | HK P.1 & P.2 Math | Coding Galaxy |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 30 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 9.0 | 9.0 |
| Further details — not scored | ||
| Size | 7 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Yik Lam Leung | Tangor Technology Limited |
In-app purchases
HK P.1 & P.2 Math
No in-app purchases
Coding Galaxy
- CGSC Monthly Plan$4.991 Month
- CGSC Yearly Plan$39.991 Year
Questions
Is HK P.1 & P.2 Math free?
Is Coding Galaxy free?
Do HK P.1 & P.2 Math or Coding Galaxy have ads?
Which is updated more often, HK P.1 & P.2 Math or Coding Galaxy?
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