| Core Identity |
| Developer | Hach Company | Hasa Inc. | TroubleFreePool | PoolShark H2O | Gazzini Ventures |
| Category | Utilities | Productivity | Utilities | Utilities | Utilities |
| Platform | iOS | iOS, Android | iOS, Android | iOS, Android | iOS, Android |
| Store Metrics |
| Rating | 3.4 / 5 | 4.7 / 5 | 3.7 / 5 | 4.8 / 5 | 4.4 / 5 |
| Ratings Count | 1,141 | 450 | 272 | 240 | 51 |
| Price | Free | Free | Free | Free | Free |
| Release Date | Dec 21, 2020 | Dec 9, 2016 | Jun 16, 2017 | Jul 14, 2019 | May 30, 2024 |
| Last Updated | Dec 18, 2025 | Apr 14, 2026 | May 3, 2026 | Feb 9, 2021 | Apr 20, 2026 |
| Sentiment & Reviews |
| Sentiment | terrible | positive | mixed | mixed | negative |
| Score | 10/100 | 75/100 | 50/100 | 55/100 | 35/100 |
| Praises | - | - Scientific LSI calculation tool provides accurate water balance guidance for pool owners
| | - Chemical calculation tools simplify complex pool maintenance tasks for commercial operators
| - Clear treatment plans and chemical balancing advice provide actionable guidance for new pool owners
|
| Complaints | - Camera capture functionality fails to focus or register test strips on modern mobile hardware
- Inaccurate chemical readings force users to rely on manual visual comparison instead of the app
- Poor user experience due to missing physical components and confusing interface instructions
| - Lack of persistent data storage forces users to re-enter pool volume and settings
| | - Frequent application crashes during data entry disrupt professional workflow requirements
| - Critical application hang during the initial tutorial prevents new users from accessing core features
- Aggressive paywall implementation prevents any meaningful exploration of features without an active subscription
|
| Requests | - Reliable manual entry options or improved camera stability to prevent wasting expensive test strips
| - Cloud-based profile storage to save pool volume and historical chemical test data
| - | - Automated push notifications for new reports would improve community pool management
| - Support for multiple pool profiles to manage different water bodies within a single account
|
| Strategic Intel |
| Strengths | - Registration-free access lowers the barrier to initial adoption
- Integration with proprietary test kits creates a direct hardware-to-software revenue link
| - LSI calculator utility builds brand authority for Hasa chemical sales
- Academy integration creates a B2B training pipeline for professionals
| - Calculation engine accuracy provides a technical barrier against camera-based test strip apps.
| - Tamper-proof electronic logs satisfy health department compliance requirements for commercial operators.
- Automated chemical dosage calculations provide direct operational cost savings for facility managers.
| - Brand authority of Swim University drives trust
- Step-by-step logic reduces beginner cognitive load
|
| Weaknesses | - Camera scanning failure on modern hardware
- 3.37-star rating reflects deep user frustration
- Lack of physical reference materials in kits
| - No cloud-based data persistence forces manual re-entry of pool settings
- Calculator interface lacks precision for mobile users
| - Subscription gating of cloud sync on a $7.99/year model drives negative sentiment among power users.
| - Frequent application crashes during data entry disrupt professional workflows.
- Persistent account authentication failures prevent access to core service features.
| - Critical tutorial crash on launch
- Aggressive paywall blocks feature evaluation
- 0.7★ Android-iOS rating gap
|
| Pricing | free | free | subscription | subscription | subscription |
| Momentum | Zombie | Maintenance | Active | Zombie | Maintenance |
| Update Cadence | 1 versions | 2 versions, ~33d avg | 2 versions, 2 majors/6mo, ~4d avg | 2 versions, 1 majors/6mo, ~1660d avg | 2 versions, 2 majors/6mo, ~3d avg |
