Numboard vs 小灵龙App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Numboard
This keyboard app provides over 110 math and science symbols, along with real-time expression evaluation. It functions as a keyboard extension, allowing you to use its advanced features in any application for homework or complex calculations.
- 110+ math and science symbols
- Real-time expression evaluation
- Keyboard extension for any app
- Advanced autocomplete for math
- Intuitive typing and design
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Numboard is the all-in-one keyboard for math and science. More than 110 math symbols, plus advanced autocomplete for math expressions. Your expressions will be evaluated as you type! You can use Numboard in ANY app, just like your default keyboard. Numboard features: + More than 110 specific symbols, including subscripts, superscripts, and more. + Your expressions will be evaluated in real-time when possible! This includes expressions with powers, variables, roots, and more. + Perfect for students: use your iOS device to do your homework! Everything you need is now in one single keyboard. + Quick typing process with intuitive behavior and great design. + Use Numboard in any app, just like your default keyboard. It can be installed as a keyboard extension. Numboard was created in 2015 by a student. Today, our customers include students, teachers, and even schools from all around the world. We listen to our users' feedback and constantly improve the app.
小灵龙App
This app provides comprehensive mobile services for campus cards, including traditional card functions like consumption and authentication, enhanced with QR code capabilities. It offers features for managing your campus card, paying various campus fees, and booking campus facilities.
- Campus card management
- QR code functionality
- Campus fee payments
- Facility booking
- Card application and registration
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【小灵龙】是一款面向校园的一卡通服务APP，在传统卡消费、认证的基础上增加了二维码功能，为校园用户提供专业、全面的移动一卡通服务。 【校园卡管理】 提供全面的校园卡服务，充值、信息查询、账单查询、流水查询、挂失／解挂、失卡招领、校园卡在线申请、校友注册等 【校园缴费】 项目缴费、电费、网费、辅修费、等级考试费、党团费、培训费、学费 【校园预订】 为校内餐厅、场馆、会议室、自习室等场所提供预订服务
Screenshots
Verdict
The clearest difference is rating: Numboard at 2.1 against 小灵龙App's 1.0. Numboard also leads on ads (none vs shown). 小灵龙App's advantage is in-app purchases (none vs 1) and iOS requirement (9.0 vs 11.0). On price, review sentiment, ratings volume and update cadence 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. Numboard sells 1 one-off in-app purchase. 小灵龙App asks for nothing beyond the download.
Numboard holds the better App Store score, 2.1 against 1.0. Both are backed by a comparable volume of ratings — 23 and 12 respectively. Written reviews complicate that: 27% of Numboard's written reviews are positive against 33% of 小灵龙App's, so the app with the better star average is not the one people write more warmly about.
Numboard ships an update every 3 weeks, 小灵龙App monthly. Both last shipped on October 24, 2026.
| Parameter | Numboard | 小灵龙App |
|---|---|---|
| Price | Free | Free |
| Rating | 2.1 (23 ratings) — better | 1.0 (12 ratings) |
| Positive reviews | 26.8% of reviews | 33.3% of reviews — better |
| Number of ratings | 23 — better | 12 |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 16 MB | 157 MB |
| Age rating | 4+ | 4+ |
| Developer | Zetegy LLC | 北京新中新诚通信息技术股份有限公司 |
Customer experience
Numboard
小灵龙App
In-app purchases
Numboard
- Numboard Pro$0.99
小灵龙App
No in-app purchases
