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What’s New Version 9.2
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.
Description
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.
Monthly Pro is a 1-month auto-renewable subscription.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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.
In-App Purchases US pricing
LSI Calculators Pro Subscription
Monthly · Monthly$1.99
One-Time Purchases
LSI Calculators pro lifetime$14.99
Capabilities
In-App Purchases
Accessibility
ipadiphonemacrealityDevicetvoswatch
Version history 25 versions
Build 886086691v9.22026-05-28 16:54:28
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.
Build 885149120v9.02026-05-01 16:15:16
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.
Build 885171696v9.12026-05-01 22:20:35
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.
Build 858304390v7.22023-07-06 16:54:59
create merge policy for database
Build 852552061v7.12022-12-16 21:12:06
Bug Fixes
Build 822488925v7.02017-06-09 15:46:56
This update from Apple will improve the functionality of this app. No new features are included.
Sync using iCloud
Bug Fixes
Build 811504011v6.42015-01-12 16:36:42
Updated for iOS 8
Build 702872982v6.32014-09-15 20:11:50
Bug Fixes
Build 595322673v6.22014-06-02 21:28:40
Added Export to CSV
Build 535682645v6.12014-04-10 18:23:57
Bug Fixes
Build 419512636v6.02014-03-06 06:57:35
Now automatically saves database entries - No more "Save" button
Added printing
Bug fixes
Build 340592844v5.22014-01-30 05:59:16
User Interface improvements
Build 297532668v5.12014-01-12 00:08:21
Bug Fixes
Build 104762646v5.02013-11-14 05:57:58
Added database
Smaller download and app size
Added Stats screen for determining minimum, maximum, and average calculations for a site
Sites are now sortable by Name, LSI, and Date
Included Quick Calc functionality
Build 76152699v4.02013-10-04 06:03:50
Updated interface to be easier to read for iOS 7
Bug Fixes
Build 38222676v3.22013-09-18 19:40:13
Added support for iOS 7
Build 15717472v3.12013-07-01 16:49:32
Added Support for Intentional Number separators
Build 11138640v3.02012-10-09 22:15:17
Added support for the iPhone 5 and iOS 6
Build 4908968v2.12011-11-15 22:36:34
Fixed potential memory leak in iOS 5
Build 4180867v2.02011-10-24 17:35:03
Added support for international decimal separators
Build 3657664v1.052011-04-25 21:18:30
Updated all backgrounds to higher resolution retina display.
Updated calculate button to better contrast with background and to support retina display
Added Quick Help Button
Build 3134655v1.042010-11-08 21:07:43
Added iPad for Universal functionality
Updated user experience
Added rotations to iPhone/iPod and available for iPad
Build 3041927v1.032010-10-07 03:12:04
Updated Icons for Retina Display
Build 2738566v1.022010-06-23 22:44:18
Pressing a button or selection box on the screen will now minimize the keypad/keyboard
Build 2697639v1.012010-06-14 23:27:39
Buttons now match the background better
TDS brings up the large number pad for text entry
Price history by region
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Availability 1 of 1 storefronts
| Region | Language | Price | Ratings | Avg | Version |
|---|---|---|---|---|---|
| US | en-US | Free | 4 | 4.8 | 9.2 |
Change log 29 changes · US
✎
releaseNotes updated
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 th
✎
description updated
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, sprea
✎
subtitle updated
Pool & Spa LSI Tracker Pro
✎
name updated
LSI Calc DB Water Balance Log
◆
Version 9.2 released
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, Sp
◆
Version 9.1 released
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, Sp
◆
Version 9.0 released
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, Sp
◆
Version 7.2 released
create merge policy for database
◆
Version 7.1 released
Bug Fixes
◆
Version 7.0 released
This update from Apple will improve the functionality of this app. No new features are included.
Sync using iCloud
Bug Fixes
◆
Version 6.4 released
Updated for iOS 8
◆
Version 6.3 released
Bug Fixes
◆
Version 6.2 released
Added Export to CSV
◆
Version 6.1 released
Bug Fixes
◆
Version 6.0 released
Now automatically saves database entries - No more "Save" button
Added printing
Bug fixes
◆
Version 5.2 released
User Interface improvements
◆
Version 5.1 released
Bug Fixes
◆
Version 5.0 released
Added database
Smaller download and app size
Added Stats screen for determining minimum, maximum, and average calculations for a site
Sites are now sortable by Name, LSI, and Date
Included Quick Calc functionality
◆
Version 4.0 released
Updated interface to be easier to read for iOS 7
Bug Fixes
◆
Version 3.2 released
Added support for iOS 7
◆
Version 3.1 released
Added Support for Intentional Number separators
◆
Version 3.0 released
Added support for the iPhone 5 and iOS 6
◆
Version 2.1 released
Fixed potential memory leak in iOS 5
◆
Version 2.0 released
Added support for international decimal separators
◆
Version 1.05 released
Updated all backgrounds to higher resolution retina display.
Updated calculate button to better contrast with background and to support retina display
Added Quick Help Button
◆
Version 1.04 released
Added iPad for Universal functionality
Updated user experience
Added rotations to iPhone/iPod and available for iPad
◆
Version 1.03 released
Updated Icons for Retina Display
◆
Version 1.02 released
Pressing a button or selection box on the screen will now minimize the keypad/keyboard
◆
Version 1.01 released
Buttons now match the background better
TDS brings up the large number pad for text entry