小灵龙App vs Pool Chem Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
Read full descriptionHide full description
【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
Pool Chem Calculator
This app helps manage pool chemistry with 24 specialized calculators for dosing, pH, and more. It features a customizable maintenance calendar, equipment tracking, and easy report sharing for up to 100 pools. Ideal for maintaining a clean and swim-ready pool.
- 24 precision pool chemical calculators
- Customizable maintenance calendar with notifications
- Equipment tracking and management
- Multi-user pool sharing
- Professional report builder
- Smart pool route mapping
Read full descriptionHide full description
Transform your pool maintenance routine with the most comprehensive pool management app on iOS. Whether you're a seasoned pool owner or just getting started, Pool Chemical Calculator puts professional-grade tools right in your pocket. Advanced Chemical Calculations Master your pool chemistry with 24 specialized calculators covering everything from chlorine dosing and pH adjustments to alkalinity balancing and shock treatments. Get precise measurements tailored to your pool size and current conditions. Track equipment, schedule maintenance with custom notifications, easy to share reports, track up to 100 pools and custom pool route maps. Key Features: 24 precision pool calculators for all chemical needs - Volume Calculator - Chlorine Calculator - Alkalinity Calculator - pH Calculator - Stabilizer Calculator - Salt Calculator - Borate Calculator - Heat Time Calculator - Turnover Rate Calculator - Filter Size Calculator - Fill Time Calculator - Flow Rate Calculator - Dynamic Head Calculator - Calcium Hardness Calculator - Saturation Index Calculator - Chlorine Neutralizer - Pool Operating Cost Calculator - Solar Heating ROI Calculator - Pool Cover Savings Calculator - Heat Cost Calculator - Evaporation Rate Calculator - Pool Leak Detection Calculator - Phosphate Removal Calculator - Algae Treatment Calculator Customizable maintenance calendar with smart notifications Smart pool route mapping Enhanced equipment tracking and management Intuitive drag-and-drop interface Advanced search and filtering options Multi-user pool sharing capabilities One-tap result sharing Comprehensive report builder Detailed user and pool profiles Smart Maintenance Scheduling Never miss another cleaning or equipment check with our intelligent calendar system. Set custom notifications for routine maintenance, equipment servicing, and warranty expirations. Stay ahead of problems before they start. Customize notifications to fit your pool. Streamlined Workflow Organize your tools exactly how you work with drag-and-drop calculator/pool ordering and custom filters. Find what you need instantly with enhanced search features that remember your preferences. Collaboration Made Easy Share pool access with family members, pool services, or property managers. Everyone stays informed with real-time updates and shared maintenance schedules. Professional Reporting Generate detailed reports combining multiple calculation results and maintenance records. Perfect for insurance claims, service documentation, or tracking long-term trends. Simple Pricing: Start free with your first pool and access all essential features. Upgrade to Premium for just $1.99/month to manage up to 100 pools, get cloud backup and go ad free - perfect for pool service professionals, property managers, or multi-pool owners. Keep your pool crystal clear and swim-ready all season long. Download Pool Chemical Calculator today and experience the difference professional-grade pool management makes. No account required to start balancing your pool. Pool Service Workspace Run your pool service business from one organized workspace. Schedule jobs, plan technician routes, manage customers and employees, track inventory, create estimates and invoices, document completed work, and review business performance. Technicians can clock in to share live location and route progress with their employer, including while the app is closed or not in use. Location tracking is user-initiated, remains visible through an ongoing notification, and stops automatically when the technician clocks out. Location data is used only for workforce route and job tracking—not advertising. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: Pool Chem Calculator at 4.3 against 小灵龙App's 1.0. Pool Chem Calculator also leads on update cadence (every 6 days vs monthly) and ratings volume (36 vs 12). 小灵龙App's advantage is in-app purchases (none vs 1) and iOS requirement (9.0 vs 16.6). On price, review sentiment, 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. Pool Chem Calculator sells 1 in-app purchase, starting at $1.99 per month. 小灵龙App asks for nothing beyond the download.
Pool Chem Calculator holds the better App Store score, 4.3 against 1.0. Both are backed by a comparable volume of ratings — 12 and 36 respectively. Written reviews point the same way: 33% of 小灵龙App's written reviews are positive against 36% of Pool Chem Calculator's.
小灵龙App ships an update monthly, Pool Chem Calculator every 6 days. The most recent releases landed on September 22, 2026 and September 18, 2026 respectively.
| Parameter | 小灵龙App | Pool Chem Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (12 ratings) | 4.3 (36 ratings) — better |
| Positive reviews | 33.3% of reviews | 36.4% of reviews — better |
| Number of ratings | 12 | 36 — better |
| Update frequency | Monthly | Every 6 days — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 157 MB | 113 MB |
| Age rating | 4+ | 4+ |
| Developer | 北京新中新诚通信息技术股份有限公司 | Gunter Business Solutions Inc |
Customer experience
小灵龙App
Pool Chem Calculator
In-app purchases
小灵龙App
No in-app purchases
Pool Chem Calculator
- 100 Pool Subscription$1.991 Month
