Track LSI readings faster with instant calculations, saved site profiles, sortable records, spreadsheet browsing, and CSV/JSON export built for pool service routines.
LSI Calc DB Water Balance Log is built for pool and spa professionals who need fast, repeatable water chemistry checks without jumping between paper logs, spreadsheets, and separate calculator tools.
Use the app to calculate Langelier Saturation Index (LSI), save readings by site, monitor chemistry trends over time, and export clean records when clients or supervisors ask for proof of service. Everything is organized for real route work: quick data entry, easy edits, and clear readouts.
Why teams use LSI Calc DB:
- Built around LSI workflow, not generic note taking.
- Designed for recurring site visits and repeat measurements.
- Fast enough for field use, structured enough for reporting.
- Works for both quick checks and long-term record history.
Core calculator and record features:
- Calculate LSI from TDS, water temperature, calcium hardness, total alkalinity, and measured pH.
- Switch between Fahrenheit and Celsius inputs.
- Get instant LSI category feedback from scale-forming to corrosive ranges.
- Save measurements as records tied to a site name.
- Keep record notes for service details, observations, or treatment context.
- Update existing records after retesting water on-site.
- Duplicate prior records to speed up repeated service calls.
- Search records by site, date, and notes.
- Sort record history by date to review newest or oldest trends quickly.
Site management and operational flow:
- Create reusable site profiles in Add Site.
- Store simple notes per site for technician context.
- Select saved sites during data entry to reduce typing.
- Use draft behavior to start a new measurement, then complete and save when ready.
- Keep list and detail visible side-by-side on iPad for faster editing.
Stats and trend review:
- Open per-site statistics in one tap.
- See minimum recorded values for key chemistry metrics.
- See maximum recorded values to catch risk spikes.
- See average values across saved records for baseline tracking.
- Review LSI movement over time for each property.
Spreadsheet and data handling:
- Browse records in a spreadsheet-style grid for high-volume review.
- Sort by column to inspect specific metrics quickly.
- Load data in batches for responsive performance.
- View up to 250 recent records in spreadsheet mode.
Export, sharing, and backup:
- Export record data as CSV for spreadsheet or reporting workflows.
- Export records as JSON for structured data transfer.
- Export full database JSON as a backup snapshot.
- Import database JSON to restore or merge saved data.
- Share exports directly to Files, Mail, Notes, and other iOS share targets.
Quick Calc mode for immediate checks:
- Use a separate local Quick Calc tab for fast device-side calculations.
- Keep quick-check values and last result in local storage.
- Share quick calculation output when needed.
Practical use cases:
- Daily pool service logs.
- Spa startup and balancing checks.
- Follow-up verification after chemical adjustments.
- Side-by-side before/after chemistry comparisons.
- Documentation for service reports and internal QA.
Built for iPhone and iPad field work:
- Fast tap targets and plain-language labels designed for techs in motion.
- iPad split layout helps teams compare record lists and details without constant back navigation.
- Integrated share flows reduce manual copy/paste when sending service documentation.
- Local-first storage keeps your workflow available where connectivity is inconsistent.
- Practical defaults help new entries start quickly, even on busy multi-stop routes.
If your work depends on consistent pool water chemistry records, LSI Calc DB gives you a straightforward way to calculate, log, review, and export LSI data in one place.
Would like to see a history of values and graph trends with a place for comments about what actions were taken to change LSI.
Great app
Livewire21
Does what it says. I use it daily. Better than working it out on paper!
Great app
Poacutter
Very useful app.
Good!
Carumba78
This is great! Please add RSI though!
This update focuses on faster workflow, clearer record handling, and stronger data portability for day-to-day pool and spa service operations.
What’s new in this version:
- Added a full tabbed app structure for Records, Add Site, Stats, Spreadsheet, Export, Quick Calc, and Help.
- Improved the record-first workflow so new measurements can be started, edited, and saved with fewer taps.
- Added better draft handling when creating a new reading from the Records tab.
Records improvements:
- Added record search across site name, date text, and notes.
- Added segmented date sorting so you can switch between newest-first and oldest-first views.
- Added swipe actions to duplicate existing records quickly.
- Added swipe actions to share a single record from the list.
- Added delete confirmation to reduce accidental data loss.
- Improved empty-state messaging for no records and no search results.
Calculator and input updates:
- Improved quick entry flow for TDS, water temp, calcium hardness, alkalinity, and pH.
- Added stronger input validation boundaries for chemistry values.
- Improved error messages for invalid or out-of-range entries.
- Added updated LSI category messaging and color-coded result states.
- Preserved recent input defaults to reduce repetitive typing.
Add Site enhancements:
- Added reusable site name and notes storage.
- Added “Choose saved site” picker flow for faster form filling.
- Added save confirmation toast so technicians get immediate feedback.
- Improved keyboard dismissal and form usability.
Stats enhancements:
- Added per-site stats navigation from the main Stats list.
- Added minimum, maximum, and average summaries for major chemistry metrics.
- Added one-tap share output for site statistics.
- Improved stats layout readability for on-site review.
Spreadsheet upgrades:
- Added spreadsheet-style grid browsing for dense record review.
- Added column header sorting interactions.
- Added initial load optimization and incremental “Load Next Rows” paging.
- Added loading state UI to clarify when rows are being prepared.
- Added device-aware batch sizing for iPhone and iPad performance.
Export and backup improvements:
- Added CSV export for GameStats records.
- Added JSON export for GameStats records.
- Added full database JSON export for broader backup needs.
- Added JSON import flow with confirmation step before applying data.
- Added import result messaging to show object count after completion.
Quick Calc tab updates:
- Added standalone local quick calculator mode with no Core Data dependency.
- Added local persistence for the most recent calculation result.
- Added reset, randomize, and share actions in the Quick Calc menu.
- Added saved timestamp visibility for the last local calculation.
Help and About updates:
- Added expanded in-app Help sections covering app flow and key screens.
- Added About screen details for version/build display.
- Added privacy and terms messaging in the About view.
Under-the-hood work:
- Improved asynchronous loading patterns in Spreadsheet view.
- Improved state handling for list/detail behavior across compact and regular layouts.
- Added utility extensions and test coverage for sorting, stats, spreadsheet behavior, and help/about content.
Quality and workflow polish:
- Improved contextual help text so new technicians can onboard faster.
- Refined wording and labels across multiple screens for clearer in-field use.
- Updated sharing and export flows to make handoff to clients and managers more consistent.
Thanks to everyone using LSI Calc DB in the field. This release is centered on reliability, faster daily logging, and easier reporting for pool water balance work.
Version 9.1
The developer, Verosocial Studio, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Verosocial Studio
Size
5.3 MB
Category
Business
Compatibility
Requires iOS 16.6 or later.
iPhone Requires iOS 16.6 or later.
iPad Requires iPadOS 16.6 or later.
Mac Requires macOS 13.5 or later and a Mac with Apple M1 chip or later.
