| Core Identity |
| Developer | Gazzini Ventures | Hasa Inc. | Gunter Business Solutions Inc | TroubleFreePool | Magen ECO-ENERGY INDUSTRIES A.C.S LTD | Expert Solution Technologies | Pooli, Inc. | Taizhou Dibiao Technology Co., Ltd. | BMAC INFOTECH | Sachinbhai Surani |
| Category | Utilities | Productivity | Utilities | Utilities | Utilities | Business | Utilities | Productivity | Tools | Utilities |
| Platform | iOS | iOS, Android | iOS, Android | iOS, Android | Android, iOS | iOS | Android, iOS | Android, iOS | Android | iOS, Android |
| Store Metrics |
| Rating | 4.6 / 5 | 4.7 / 5 | 3.5 / 5 | 3.7 / 5 | 4.0 / 5 | 5.0 / 5 | 4.6 / 5 | 0.0 / 5 | 0.0 / 5 | 5.0 / 5 |
| Ratings Count | 11 | 450 | 17 | 272 | 2 | 2 | 353 | 0 | 0 | 1 |
| Price | USD19.99 | Free | Free | Free | Free | Free | Free | Free | Free | Free |
| Release Date | Jul 1, 2020 | Dec 9, 2016 | Mar 14, 2019 | Jun 16, 2017 | Dec 1, 2022 | Mar 23, 2020 | Jan 18, 2020 | Jun 9, 2024 | Mar 5, 2026 | Feb 22, 2026 |
| Last Updated | Apr 3, 2023 | Apr 14, 2026 | Aug 18, 2025 | May 3, 2026 | Mar 3, 2026 | May 8, 2026 | Apr 3, 2026 | Apr 12, 2026 | Mar 6, 2026 | Feb 23, 2026 |
| Sentiment & Reviews |
| Sentiment | mixed | positive | negative | mixed | positive | - | positive | terrible | - | excellent |
| Score | 45/100 | 75/100 | 35/100 | 50/100 | 75/100 | - | 82/100 | 25/100 | - | 90/100 |
| Praises | - Chemical calculation logic removes manual guesswork for pool and hot tub maintenance tasks
| - Scientific LSI calculation tool provides accurate water balance guidance for pool owners
| - Chemical calculation accuracy provides reliable guidance for pool maintenance and water balancing tasks
| | - Simple installation and pairing process allows users to start controlling pool systems immediately
- Reliable monitoring of pool balance and generation status provides peace of mind for owners
| - | - Automated chemical dosage calculations provide clear guidance for maintaining balanced pool water chemistry
| - Professional pool business management tools provide essential operational support for daily service routes
- Efficient tracking of mileage and time helps business owners monitor employee accountability effectively
| - | - Structural engineering visualization tools provide clear insights into beam mechanics for students and professionals
- User friendly interface design makes complex solid mechanics calculations accessible for daily academic tasks
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| Complaints | - Inaccurate salt requirement calculations following the latest update cause significant user frustration
| - Lack of persistent data storage forces users to re-enter pool volume and settings
| - Aggressive video advertisement frequency interrupts the calculation workflow and degrades the user experience
| | - | - | - Paywall implementation for test strip scanning creates friction for users expecting free functionality
| - Frequent application crashes and freezing during route management disrupt critical daily field work
- Slow loading times and excessive syncing requirements hinder performance in areas with poor connectivity
- Aggressive annual price increases and monetization pressure alienate small business owners and operators
| - | - |
| Requests | - | - Cloud-based profile storage to save pool volume and historical chemical test data
| - One-time purchase option requested as an alternative to recurring monthly subscription fees
| - | - Scheduling features for automated unit power cycles would improve daily pool maintenance routines
- Data logging for acid pump dosing would help users track chemical usage patterns
- Local time zone configuration settings would replace the current UTC default for better usability
| - | - Integration with native calendar or reminder applications to manage maintenance tasks more effectively
| - Offline mode functionality is required to ensure reliable performance during field service operations
- Integration options for third party mapping applications would improve navigation efficiency for technicians
| - | - |
| Strategic Intel |
| Strengths | - Community-driven formula library creates a switching cost barrier
- Flexible unit conversion supports diverse regional professional standards
| - LSI calculator utility builds brand authority for Hasa chemical sales
- Academy integration creates a B2B training pipeline for professionals
| - 24-calculator toolset provides high-precision utility for niche water-balancing needs
- Multi-pool management supports professional service workflows
| - Calculation engine accuracy provides a technical barrier against camera-based test strip apps.
| - Hardware-integrated utility functions as a B2B distribution barrier for Magen Eco-Energy sales
- Remote monitoring reduces manual maintenance labor for hardware owners
| - Geofencing transparency builds trust with remote property owners
- Standardized logging ensures consistent service delivery
| - Chemical calculation engine lowers entry barriers for novices
- Inventory tracking embeds the app into recurring supply-purchasing habits
| - Direct hardware control for skimmer movement and battery monitoring
- Automated service email reporting with proof-of-work photos
- Offline data entry capability for remote field locations
| - Offline-first architecture enables utility in remote field environments without cellular connectivity.
| - Visualization tools for beam mechanics drive high retention
- Intuitive interface design lowers the barrier for academic solid mechanics tasks
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| Weaknesses | - One-time purchase model limits recurring revenue for development
- Calculation errors in salt requirements post-update
- Lack of automated test-strip scanning reduces convenience
| - No cloud-based data persistence forces manual re-entry of pool settings
- Calculator interface lacks precision for mobile users
| - 3.29 Android rating reflects high churn from ad-frequency complaints
- Mandatory account gating prevents top-of-funnel acquisition
| - Subscription gating of cloud sync on a $7.99/year model drives negative sentiment among power users.
| - No scheduling features for unit power cycles
- Lack of acid pump dosing logs
- UTC-only time zone default
| - No automated chemical-balancing tools
- Lacks remote equipment control features
- Limited to specific Florida regions
| - Subscription gate on test-strip scanning creates conversion friction
- Inconsistent scan accuracy erodes trust in automated advice
| - Frequent application crashes and freezing during route management
- Excessive server synchronization requirements in low-connectivity areas
- Rising subscription costs perceived as predatory by small business owners
| - Absence of a verified chemical database limits trust in high-stakes application scenarios.
| - Lifetime purchase model limits recurring revenue
- Lack of cloud-save functionality creates workflow friction for professional users
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| Pricing | paid | free | freemium | subscription | free | free | freemium | subscription | freemium | freemium |
| Momentum | Zombie | Maintenance | Maintenance | Active | Maintenance | Maintenance | Maintenance | Maintenance | - | Maintenance |
| Update Cadence | 1 versions | 2 versions, ~33d avg | 2 versions, 1 majors/6mo, ~0d avg | 2 versions, 2 majors/6mo, ~4d avg | 2 versions, ~1d avg | 1 versions | 2 versions, 2 majors/6mo, ~1d avg | 2 versions, ~3d avg | - | 2 versions, ~18d avg |