# Reef Meister: Measure Salinity — SmartRef > Manage and visualize data from the SmartRef digital refractometer. (iPhone/iPad app by Anton Paar ConsumerTec GmbH.) - Source: https://appshunter.io/ios/app/reef-meister-measure-salinity/id1626848613 (this page in markdown: same URL + `.md`) - Developer: [Anton Paar ConsumerTec GmbH](https://appshunter.io/developer/1564917005) - Category: Reference - Price: Free with in-app purchases - Rating: 5.00/5 from 2 App Store ratings - Age rating: 4+ - Requires: iOS 18.0 · 72 MB - Languages: German (Germany), European Spanish, American English, Italian, Japanese, Chinese (Simplified, China), Czech, Turkish, European Portuguese, Polish and 2 more - Released: 2022-09-08 - Data updated: 2026-10-30 - Monetization: free with in-app purchases ## What is Reef Meister? MEASURE SMARTER. TRACK WATER QUALITY. KEEP YOUR REEF STABLE. Reef Meister makes it easy to measure, monitor, and manage water parameters in saltwater aquariums. Whether you're maintaining a reef tank, marine fish aquarium, or multiple tanks, track salinity, monitor pH, and keep your water measurements organized — all in one app. Use EasyDens, SmartRef, or pH2Go with the app to collect reliable measurement data in one place. Use SmartRef to measure salinity and pH2Go to monitor pH. No measuring device? You can also enter readings manually. MONITOR SALINITY & PH Stay on top of your aquarium water conditions and maintain a stable environment for your marine life. - Measure salinity in PSU, parts per thousand (ppt), or specific gravity (SG) - Monitor pH to support stable water conditions - Check measurements against recommended ranges for your aquarium type - Identify changes in water parameters before they become bigger problems - Track salinity and pH readings over time RESULTS WITH CONTEXT Go beyond the measurement and understand what your results mean for your aquarium. - See whether your salinity is within the recommended range for reef aquariums, typically around 35 ppt (approximately 1.026 SG) - Get measurement guidance based on your aquarium type - Identify salinity changes early to support stable conditions for corals, fish, and invertebrates - Understand your measurements to make more informed aquarium maintenance decisions MEASURE SMARTER, CALCULATE LESS Spend less time calculating and more time caring for your aquarium. - Capture precise salinity measurements with SmartRef using just a small sample - Benefit from automatic temperature compensation without manual correction tables - Switch between salinity units without manual conversions - Calibrate SmartRef with distilled water directly in the app - Measure salinity with digital refractometer precision for consistent, repeatable results MANAGE TANKS & TRACK CHANGES Keep your aquarium measurements organized and use previous results to monitor water quality over time. - Create individual logs for multiple aquariums - Track salinity and pH over time with measurement graphs - Save measurements with notes and timestamps - Add notes for water changes, top-offs, and dosing - Compare measurements to identify trends - Find previous measurements and logs with full-text search - Copy or share individual measurement results - Export your data as PDF or CSV YOUR AQUARIUM DATA, ALL IN ONE PLACE From individual salinity and pH measurements to complete tank histories, Reef Meister brings your aquarium data together in one place. Measure with connected devices, monitor water parameters, identify changes, and compare results to support stable conditions for your marine life. With a free Meister Cloud account, sync your measurements and tank logs across compatible devices, including iPhone, iPad, Apple Watch, Apple Silicon Mac, Apple Vision Pro, and the web — one account for the entire Meister App family. Without a Meister Cloud account, your measurement data stays stored locally on your device. Learn more: https://www.get-tony.com/ SUPPORT Contact us at support@get-tony.com. PRIVACY POLICY https://www.get-tony.com/policies/privacy-policy TERMS OF USE https://www.get-tony.com/policies/legal-notice -------------- AUTO-RENEWABLE SUBSCRIPTION TERMS Reef Meister is free to download, with optional monthly and annual subscriptions for advanced features. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current billing period. Payment and renewal pricing are displayed before purchase. Subscriptions and free trials can be managed or canceled in your Apple Account settings. If a free trial is offered, the subscription renews at the displayed price unless canceled before the trial ends. ## Key features - Collects data from SmartRef refractometer - Manages and visualizes readings - Exports data in multiple formats - Temperature-corrected concentration values - Adjusts SmartRef device - Supports PSU, ppt, and SG 20/20 units ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Full Access | $39.99 | per year | | Full Access Monthly | $4.99 | per month | ## Is Reef Meister safe? Not enough ratings yet to assess Reef Meister. ## Is Reef Meister legit? Reef Meister: Measure Salinity appears to be a legitimate app. The AppsHunter Legitimacy Score for Reef Meister is 90 out of 100 points across 7 verification signals from App Store and developer data. ## Frequently asked questions about Reef Meister ### What is Reef Meister? Reef Meister is a mobile application designed to collect, manage, visualize, and export data from the Anton Paar SmartRef digital refractometer. It provides temperature-corrected readings in various units for salinity and concentration. ### What units does Reef Meister support? Reef Meister supports Practical Salinity Units (PSU), Salinity in Parts per Thousand (ppt), and Salinity S.G. (SG 20/20). The app also displays temperature-corrected concentration values. ### How do I adjust the SmartRef device with Reef Meister? The SmartRef device is adjusted using the Reef Meister app and distilled water. This ensures accurate readings for your measurements. ### What devices is Reef Meister compatible with? Reef Meister is compatible with iPhones and Apple Watches, as indicated by its supported devices list. It was released on September 8, 2022, and last updated on June 8, 2026. ### What is the age rating for Reef Meister? Reef Meister has an age rating of 4+, making it suitable for a wide range of users. The app is available for free. ### Does Reef Meister have ads? No, Reef Meister does not contain advertisements. The application is free to download and use, with optional in-app purchases for enhanced features. ### What are the subscription options for Reef Meister? Reef Meister offers auto-renewable subscriptions billed monthly or annually. Options include 'Full Access Monthly' for $4.99/P1M with a 7-day free trial, and 'Full Access' for $39.99/P1Y with a 7-day free trial. ### How can I cancel my Reef Meister subscription? You can cancel your free trial or subscription at any time by turning off auto-renewal through your iTunes account settings. This must be done at least 24 hours before the end of the current period to avoid being charged. ## Version history (last 5 releases) ### 6.8.1 — 2026-10-28 - Bug fixes and performance improvements. - Added a new high-precision measurement mode - Enhanced device settings To improve our app for you, we regularly bring updates to the App Store. If you enjoy it, would you mind taking a moment to write a review on the App Store? We’d greatly appreciate it. ### 6.8.0 — 2026-10-20 - Added a new high-precision measurement mode - Enhanced device settings - Bug fixes and performance improvements. To improve our app for you, we regularly bring updates to the App Store. If you enjoy it, would you mind taking a moment to write a review on the App Store? We’d greatly appreciate it. ### 6.7.3 — 2026-10-01 - Added a new high-precision measurement mode - Enhanced device settings - Bug fixes and performance improvements. To improve our app for you, we regularly bring updates to the App Store. If you enjoy it, would you mind taking a moment to write a review on the App Store? We’d greatly appreciate it. ### 6.7.2 — 2026-09-22 - Added a new high-precision measurement mode - Enhanced device settings - Bug fixes and performance improvements. To improve our app for you, we regularly bring updates to the App Store. If you enjoy it, would you mind taking a moment to write a review on the App Store? We’d greatly appreciate it. ### 6.7.1 — 2026-09-17 - Added a new high-precision measurement mode - Enhanced device settings - Bug fixes and performance improvements. To improve our app for you, we regularly bring updates to the App Store. If you enjoy it, would you mind taking a moment to write a review on the App Store? We’d greatly appreciate it. ## More apps by Anton Paar ConsumerTec GmbH - [Brew Meister: Track your beer](https://appshunter.io/ios/app/brew-meister-track-your-beer/id1521627812) - [Lab Meister: Track Lab Data](https://appshunter.io/ios/app/lab-meister-track-lab-data/id1576665047) - [Wine Meister: Track Your Wine](https://appshunter.io/ios/app/wine-meister-track-your-wine/id1585621353) - [Proof Meister: Measure Spirits](https://appshunter.io/ios/app/proof-meister-measure-spirits/id1585835714) - [Pet Care Meister - Cat Dog Log](https://appshunter.io/ios/app/pet-care-meister-cat-dog-log/id6741420688) All apps by Anton Paar ConsumerTec GmbH: https://appshunter.io/developer/1564917005 ## Related topics [anton paar](https://appshunter.io/ios/topics/anton-paar) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-30.*