Calculator∫ vs 小灵龙App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator∫
Perform calculations quickly and accurately with large buttons. Personalize the interface by selecting custom background and text colors. This straightforward utility is designed for intuitive use.
- Large buttons for easy input
- Accurate calculations
- Customizable background colors
- Customizable text colors
- Intuitive user interface
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This simple calculator app is designed for ease of use. Quickly and accurately perform calculations with the large buttons. Personalize the calculator by choosing your own colors for the background and text.
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 review sentiment: Calculator∫ at 84% against 小灵龙App's 33%. Calculator∫ also leads on rating (4.6 vs 1.0) and ads (none vs shown). On price, ratings volume, 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.
Calculator∫ holds the better App Store score, 4.6 against 1.0. Both are backed by a comparable volume of ratings — 7 and 12 respectively. Written reviews point the same way: 84% of Calculator∫'s written reviews are positive against 33% of 小灵龙App's.
Calculator∫ ships an update weekly, 小灵龙App monthly. The most recent releases landed on August 13, 2026 and October 1, 2026 respectively.
| Parameter | Calculator∫ | 小灵龙App |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (7 ratings) — better | 1.0 (12 ratings) |
| Positive reviews | 83.8% of reviews — better | 33.3% of reviews |
| Number of ratings | 7 | 12 — better |
| Update frequency | Weekly — better | Monthly |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 4.3 — better | 9.0 |
| Further details — not scored | ||
| Size | 1 MB | 157 MB |
| Age rating | 4+ | 4+ |
| Developer | 7th Gear | 北京新中新诚通信息技术股份有限公司 |
Customer experience
Calculator∫
小灵龙App
In-app purchases
Calculator∫
No in-app purchases
小灵龙App
No in-app purchases
