LSI Pool and Spa Calculator vs Pool Math by TroubleFreePool

You put care into every pool and spa you look after. Thank you for using LSI Pool and Spa Calculator. Your attention to water testing matters, and this app helps you keep readings, customer details, and service visits organized. Whether you maintain your own spa or look after several properties, bring your water balance calculator and service log together. Enter measured values, check the Langelier Saturation Index, and keep a useful record for your next visit. CHECK POOL AND SPA WATER BALANCE - Calculate LSI from measured pH, water temperature, calcium hardness, total alkalinity, and total dissolved solids. - See the calculated saturation pH and a result category. - Review whether readings suggest a scale or corrosion tendency. - Work in Fahrenheit or Celsius and convert the entered temperature when switching units. - Find the formula, measurements, and result ranges in Help. KEEP READINGS YOU CAN FIND AGAIN - Save measurements under reusable pool, spa, and property names. - Record dates and notes about water condition, treatments, or follow-up work. - Search saved history by site, result category, or notes. - Sort readings, correct saved inputs, and recalculate after an edit. - Duplicate a record for another visit. - Review a reading beside the records list on wider iPad layouts. PLAN AND RECORD SERVICE VISITS - Schedule visits for a saved pool or spa site. - Add a technician, visit status, and completed-work checklist. - Record actual chemical actions, service observations, and customer notes. - Link a saved water reading or enter fresh measurements for the visit. - Preview a service report before saving. - Keep an unfinished new visit as a local draft. - Note the next service or retest date and book a separate visit when ready. KEEP CUSTOMERS AND SITES CONNECTED - Save customer names, companies, phone numbers, emails, addresses, and notes. - Add customers manually or choose contacts to copy from Apple Contacts. - Link several sites to one customer and give each site its own address. - Keep local contact edits separate from device Contacts. - Find mapped sites using their address or a linked customer's address. - Search the site list even when a property still needs an address. REVIEW CHANGES OVER TIME - Explore charts for LSI, pH, temperature, hardness, alkalinity, and TDS. - Compare minimum, maximum, and average measurements. - Review history by customer or individual site. - Filter readings by result category. - Use Quick Calc for a check outside saved site history. - Set a weekly testing goal and review milestones in Habits & Progress. USE INPUT TOOLS THAT FIT THE JOB - Reset a form or search from its three-line menu. - Share current field labels and values, including an unfinished form. - Expand Details when you need guidance and keep notes in their fields. - Enable Sample Data or Randomize in Settings when you want practice inputs. Both start off. - Choose Light, Dark, or system appearance. TAKE YOUR RECORDS WITH YOU - Export readings, sites, contacts, or service visits as CSV or PDF. - Save JSON backups and review processing limits before relying on a backup. - Use Apple Watch for independent LSI calculations, local saved readings, and sharing. Watch readings do not sync with iPhone. The free iPhone app supports up to five saved readings. LSI Pro adds a larger reading allowance, spreadsheet review, backup import, and individual text and PDF reports. Watch calculation, saving, and sharing are free. Use reliable water tests alongside equipment and treatment guidance. LSI describes saturation tendency; it does not calculate chemical doses. Keep testing, keep good notes, and head into your next visit prepared. Monthly Pro is a 1-month auto-renewable subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

PoolMath makes swimming pool care, maintenance and management easy by tracking chlorine, pH, alkalinity and other levels to help calculate how much salt, bleach and other chemicals to add. Keep swimming in your TroubleFreePool with Pool Math. Crystal clear algae free pool water is what Trouble Free Pool Math is committed to. Pool Math performs all the calculations you need to keep your chlorine, pH, calcium, alkalinity, and stabilizer levels balanced. Why choose Pool Math over the others? Other apps claim to make testing easy by using test strips and your phone's camera. Unfortunately, this is simply too good to be true. Test strips are notoriously inaccurate and end up costing you much more money in both chemicals and the tests themselves in the long run. Trouble Free Pool believes using a proper test kit is much easier, effective, and economical in the long run. By following these calculations the pool owner achieves and maintains crystal clear water without reliance on the often unproductive advice and unneeded expense from pool stores. Pool Math's great features include: • Calculators for pH, Free Chlorine, Calcium Hardness, Salt, Total Alkalinity, Calcium Hardness, Borates, CSI • Track Maintenance: Backwashing, Vacuuming, Filter Cleaning, Filter Pressure, SWG Cell %, Flow Rate • Track Chemical Additions • Track Weather conditions with your logs • Calculate the Effects of Adding chemicals to your pool • Bleach Price Calculator - Find the best deals on bleach easily • Summary page to see an overview of test results and chemical additions • Data backup / Export Premium Subscribers get access to these additional features: • Unlimited Test Log History Storage • Maintenance Reminders • Cloud Sync/Backup • Sync across multiple devices • Unlimited Pool / Spa Configurations • Test Log CSV Import / Export Pool Math Premium Subscription details: • Auto-renewable subscription • 1 year for $7.99 USD • Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew (at the duration of 1 year) unless auto-renew is turned off at least 24 hours before the end of the current period. • Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes Account Settings after purchase. • Privacy Policy & Terms of Use: http://poolmathapp.com/privacy/