Square Root Technology Case Collection | Original
A portfolio of projects by Square Root Technology (平方根科技) from 2018. The company had a ~15-person team covering frontend, backend, iOS, Android, WeChat Mini Programs, UI/UX design, and business development. They completed 40+ projects across Web, iOS, Android, and WeChat Mini Apps.
Page 1 — Cover
平方根科技案例集 (Square Root Technology Case Collection), dated October 2018.

Page 2 — 燃烧吧大脑 (Burn Brain) WeChat Mini Program
Official mini-program for Jiangsu TV’s “The Brain” (最强大脑) show. Cognitive ability testing app with radar charts for observation, spatial, reasoning, calculation, memory, and attention. Features leaderboards and score comparisons.
- Role: Design & Development
- Price: ¥70,000
- Duration: 3 weeks
- Platform: WeChat Mini Program

Page 3 — 趣标注 (Fun Annotation) AI Data Annotation Platform
Human-AI collaborative data annotation platform for machine learning. Supports per-image annotation tasks with multiple-choice labeling, auto-bidding, task management, and user wallets. Not publicly released at the time.
- Role: Development
- Price: ¥200,000
- Duration: 2 months
- Platform: Web

Page 4 — 拼我 PingWorld Talent Sharing Platform
A centralized shared service distribution platform connecting talent with opportunities across 10 categories: design, legal, finance, marketing, development, film/creative, public affairs, HR, consulting, and music. Features requirement listings, talent profiles, and application flows.
- Role: Design, Development & Launch
- Price: ¥150,000
- Duration: 2 months
- Platform: WeChat Mini Program

Page 5 — 汉语大词典 (Chinese Dictionary) WeChat Mini Program
A Chinese language dictionary tool supporting multi-dimensional queries: by structure, by part of speech, and by initial letter. Clean, minimal interface with pinyin search.
- Role: Mini Program Development
- Price: ¥15,000
- Duration: 2 weeks
- Platform: WeChat Mini Program

Page 6 — BitEDU Blockchain Education Platform
Website and whitepaper design for a blockchain-based decentralized education ecosystem. Features an “EDUx” token ecosystem with modules for sharing, certification, competition, finance, IP, and more.
- Role: Development & Design
- Price: ¥60,000
- Duration: 3 weeks
- Platform: Web

Page 7 — vToken Blockchain Asset App
Mobile app for blockchain asset harvesting with a gamified “virtual farm” interface. Supports vToken, NEO, and EOS. Features task centers, friend invitations, and an in-app mall for exchanging game props. Not publicly released.
- Role: Development
- Price: ¥180,000
- Duration: 1.5 months
- Platform: iOS & Android

Page 8 — HomeNet E-commerce App
Mobile e-commerce app with group-buying and price-drop shopping features. Includes expert Q&A, in-app currency lottery, and a “mining/collection” gamification feature. Not publicly released.
- Role: Design & Development
- Price: ¥250,000
- Duration: 3 months
- Platform: iOS & Android

Page 9 — 小猿题库 (Xiao Yuan Question Bank) Game Series
A set of 7 educational web games for Yuan TiKu Education Company. Interactive vocabulary learning games with image-word matching, designed for children. Cartoon-style UI with reward systems.
- Role: Development
- Price: ¥120,000
- Duration: 1.5 months
- Platform: Web

Page 10 — 积分兑换 (Points Redemption) System
Digital points/rewards redemption platform for a vertical startup. Users can trade points for rewards like Starbucks coffee, manage profiles, view redemption codes, and access promotional content. Not publicly released.
- Role: Design & Development
- Price: ¥100,000
- Duration: 1.5 months
- Platform: Web & WeChat

Page 11 — TogoCareer 拼课+ WeChat Mini Program
Career-focused group-buy learning platform. Users invite friends to form groups and access paid career courses (consulting, management, HR, marketing) for free. Partner: Beijing Kuangzhi Information Technology.
- Role: Design & Development
- Price: ¥40,000
- Duration: 0.5 months
- Platform: WeChat Mini Program

Page 12 — 寻厢记 Restaurant Reservation Mini Program
Restaurant reservation platform with booking management, status tracking (pending payment, paid, confirmed), and private room selection. Partner: Sanye (Beijing) Technology.
- Role: Development
- Price: ¥50,000
- Duration: 1.5 months
- Platform: WeChat Mini Program

Page 13 — 几秒社区 VOTE Sports Mini Program
Sports-themed social platform for sharing sports-related content. Features user feeds, comments, follows, and interactions around topics like sneakers, cycling, and outdoor activities. Partner: Beijing Daye Husheng Culture Media.
- Role: Design & Development
- Price: ¥60,000
- Duration: 1.5 months
- Platform: WeChat Mini Program

Page 14 — 律享 Legal Services Platform
Mobile platform connecting people needing legal support with lawyers. Features order posting, lawyer bidding, service selection (consultation, case delegation, legal documents), and progress tracking.
- Role: Design & Development
- Price: ¥200,000
- Duration: 2.5 months
- Platform: iOS & Android

Page 15 — BISS挖矿神器 Crypto Mining Tool
WeChat Mini Program + H5 crypto mining and trading tool. Features invite-to-mine mechanics, countdown timers, mining income tracking, leaderboards, and QR code-based onboarding. Partner: a blockchain company.
- Role: Development
- Price: ¥50,000
- Duration: 1 month
- Platform: WeChat Mini Program & H5

Page 16 — 喔喔选装 Custom Renovation Services
Home renovation service platform with merchant selection, safety guarantees, progress tracking (plumbing, electrical, masonry, carpentry stages), and renovation assistant features. Partner: Qianhuibang (Beijing) Technology.
- Role: Design & Development
- Price: ¥120,000
- Duration: 2 months
- Platform: WeChat Mini Program & Web

Page 17 — 众誉旅游大数据 Tourism Big Data Platform
Data analytics platform aggregating review and popularity statistics for millions of Chinese tourist destinations. Features destination rankings, positive review rates, and search. Partner: Beijing International Studies University.
- Role: Design & Development
- Price: ¥50,000
- Duration: 1 month
- Platform: Web

Page 18 — 粉笔万词王 Fenbi Word King
Vocabulary learning mini-program for Chinese English proficiency exams (CET-4, CET-6, Graduate Entrance Exam). Features word lists, progress tracking, quiz modes (English-Chinese, traditional), and study duration stats. Partner: Beijing Fenbi Lantian Technology.
- Role: Development
- Price: ¥50,000
- Duration: 1 month
- Platform: WeChat Mini Program

Page 19 — 粉笔网 Kids Educational Games
Two children’s educational mobile games for the Fenbi Kids platform. Cartoon-style grocery store game teaching English food vocabulary with a friendly dinosaur character and reward system (dinosaur eggs). Partner: Beijing Fenbi Lantian Technology.
- Role: Development
- Price: ¥40,000
- Duration: 1 month
- Platform: iOS & Android

Page 20 — 拍照穿越大学 Photo Through-Time University H5
Fun H5 app where users upload a photo to generate a stylized “university time travel” image with playful meme text. Created for promotion tied to university themes. Partner: Beijing Fenbi Future Technology.
- Role: Design & Development
- Price: ¥60,000
- Duration: 1 month
- Platform: H5

Page 21 — 开学解锁新发型 Back-to-School Hairstyle H5
Seasonal H5 tool where users upload a photo to generate playful “new school hairstyle” themed images. Shareable with QR codes linking to Xiao Yuan Sou Ti (小猿搜题). Partner: Beijing Fenbi Future Technology.
- Role: Development
- Price: ¥40,000
- Duration: 1.5 months
- Platform: H5

Page 22 — FOMOO Blockchain Game
Entertaining web-based Ethereum blockchain game themed around “exit scams.” Players compete in rounds to drain an ETH pot, with pre-ICO phases, team selection, vault mechanics, and USDT earnings tracking. Partner: Beijing Relang Fengxiang Technology.
- Role: Design & Development
- Price: ¥50,000
- Duration: 1 month
- Platform: Web

Page 23 — 礼包兑换 Gift Pack Redemption H5
H5 page for Yuanfudao (猿辅导) official account. Features personalized poster creation for a “Three Thinking Skills Training Camp” promotion, plus gift pack redemption via 10-digit codes with confirmation flows. Partner: Beijing Fenbi Future Technology.
- Role: Design & Development
- Price: ¥20,000
- Duration: 0.5 months
- Platform: H5

Page 24 — 课程裂变 Course Fission H5
Viral marketing H5 for a “21-Day Math Reading Training Camp.” Users generate shareable posters, invite 5 parents to unlock free course access, with progress tracking and countdown timers. Partner: Beijing Fenbi Future Technology.
- Role: Design & Development
- Price: ¥40,000
- Duration: 1 month
- Platform: H5

Page 25 — Company Overview
Square Root Technology team overview:
- ~15 person development team (frontend, backend, iOS, Android, WeChat Mini Program, UI/UX design, business)
- 40+ historical projects across Web, iOS, Android, WeChat Mini Apps
- Clients include top-tier education company Yuan TiKu (猿题库), blockchain startups, and hardware companies

Page 26 — Management Team
- 李智维 (Li Zhiwei) — Founder/CEO. Former founder of Qu Zhi Bo (Fun Live); backed by former Jumei VP Ye Fei and Li Xiaolai; ex-LeanCloud engineer. 5 years experience.
- 徐芃 (Xu Wei) — CTO. Former Weibo Feed backend engineer; Chongding Dahui streaming engineer. 5 years experience.
- 丁殿帅 (Ding Dianshuai) — Mobile Lead. Former senior iOS engineer at Tianqi Jia; grew product from zero to tens of millions of users; served Bluegogo. 4 years experience.
- 武华容 (Wu Huarong) — Frontend Lead. Served Xiao Yuan Sou Ti, BitEDU; ex-Tongsheng Kechuang frontend engineer. 4 years experience.

Page 27 — Project Expectations
- Timeline & Staffing: Determined by specific workload requirements
- Post-Maintenance: Half-month maintenance period reserved; supports long-term cooperation
- Quotation & Contract: Separate quote provided; contract processed upon mutual confirmation

Page 28 — Thank You
| 谢谢 (Thank you) — 平方根 | 2018.10 |
