# Reef Diary Aquarium Management — Your aquarium manager > Aquarium management app for tracking parameters, maintenance, and livestock. (iPhone/iPad app by Christian Buchholz.) - Source: https://appshunter.io/ios/app/reef-diary-aquarium-management/id6746352304 (this page in markdown: same URL + `.md`) - Developer: [Christian Buchholz](https://appshunter.io/developer/1816370032) - Category: Utilities, Lifestyle - Price: Free with in-app purchases - Rating: 1.00/5 from 1 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 15.1 · 57 MB - Languages: American English, Arabic, French (France), German (Germany), Hindi, Japanese, European Portuguese, Russian, Chinese (Simplified, China), European Spanish and 1 more - Released: 2025-05-31 - Data updated: 2026-09-03 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/reef-diary-aquarium-management/id6746352304/reviews.md ## What is Reef Diary Aquarium Management? ReefDiary helps reef keepers stay organized, spot changes earlier, and build better care habits for saltwater aquariums. Whether you are maintaining your first nano reef or managing a mature mixed reef, ReefDiary gives you a calm, structured place to record what matters and understand how your aquarium is doing over time. Log key water parameters such as temperature, salinity, pH, alkalinity, calcium, magnesium, nitrate, phosphate, and more. Keep your test history organized so you can review trends instead of relying on memory or scattered notes. Create maintenance tasks for water changes, filter cleaning, dosing, feeding, testing, equipment checks, livestock care, and recurring routines. ReefDiary helps you keep track of what needs attention so important aquarium care does not slip through the cracks. Manage livestock with dedicated records for fish, coral, invertebrates, and other reef inhabitants. Add names, species details, care notes, purchase dates, observations, and status updates so your tank history stays easy to follow. Use the dashboard to get a quick overview of your reef. See recent activity, upcoming tasks, current health signals, and the information you need most when checking in on your aquarium. Review analytics and health insights to better understand your tank’s stability. ReefDiary turns your logs into useful patterns so you can notice parameter swings, track progress, and make more confident reef keeping decisions. Record observations, changes, and important events as they happen. Add notes after testing, dosing, livestock additions, equipment changes, coral placement, or unusual behavior so you always have context for future decisions. ReefDiary is designed for hobbyists who want less guesswork and more consistency. Instead of jumping between spreadsheets, reminders, notebooks, and photos, you can keep your reef diary in one dedicated place built around aquarium care. Use ReefDiary to: Track water test results over time Monitor aquarium health and stability Plan and complete maintenance tasks Keep livestock records organized Record dosing, feeding, and care notes Review trends and recent changes Build a reliable history of your reef Stay consistent with routine tank care Reef keeping rewards patience, observation, and consistency. ReefDiary helps support those habits by making it easier to document your tank, understand what changed, and stay ahead of maintenance. Start building a clearer history of your reef today with ReefDiary. reefdiary.io SUBSCRIPTIONS MoneyDiary Pro Monthly • 1-month auto-renewable subscription • Price is displayed in your local currency before purchase. MoneyDiary Pro Yearly • 1-year auto-renewable subscription • Price is displayed in your local currency before purchase. MoneyDiary Enterprise Monthly • 1-month auto-renewable subscription • Price is displayed in your local currency before purchase. MoneyDiary Enterprise Yearly • 1-year auto-renewable subscription • Price is displayed in your local currency before purchase. Payment will be charged to your Apple Account at confirmation of purchase. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current billing period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage or cancel your subscriptions at any time in your App Store Account Settings. Privacy Policy: https://moneydiary.io/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - Smart parameter tracking for reef and freshwater - Visual trend charts for water parameters - Multiple tank support - Equipment and livestock inventory - Maintenance task scheduler with reminders - Offline functionality ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | ReefDiary Yearly Enterprise | $699.00 | per year | | Enterprise Monthly Subscription | $89.99 | per month | | Reef Diary - Monthly | $2.99 | per month | | Reef Diary - Yearly | $24.99 | per year | ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/reef-diary-aquarium-management/id6746352304/reviews.md ### 1/5 — Unfinished *2026-02-10* I tried using this app for my servicing business and it doesn’t save information under the right tanks. As well as If you click on certain tabs like livestock it takes you to parameters so you have to click on equipment to get to livestock. Paper and pencil is easier than this app and I even used the premium version. **Developer response:** Thank you for your feedback version 1.3 will fix some of the bugs you experience and will have a web version as well. ## Frequently asked questions about Reef Diary Aquarium Management ### What is Reef Diary? Reef Diary is a comprehensive aquarium management application designed to help users track water parameters, schedule maintenance tasks, and manage their livestock and equipment for both reef and freshwater tanks. ### Does Reef Diary work offline? Yes, Reef Diary works offline, allowing for daily use without an internet connection to manage your aquarium data and schedules. ### What types of tanks can I manage with Reef Diary? You can manage both reef tanks and freshwater aquariums, including planted tanks and marine systems. The app automatically filters parameters based on your tank type. ### Can I track multiple aquariums with Reef Diary? Yes, Reef Diary supports managing multiple tanks, allowing you to keep track of your entire aquarium collection from a single application. ### How does Reef Diary handle user data privacy? Reef Diary stores all data locally on your device. The app does not collect, store, or share any of your personal information or aquarium data, prioritizing user privacy. ### What are the subscription options for Reef Diary? Reef Diary offers subscription plans including a monthly option for $2.99 and a yearly option for $24.99, providing access to premium features. ### What age rating is Reef Diary suitable for? Reef Diary has an age rating of 4+, making it suitable for a wide range of users interested in aquarium management. ### How often is Reef Diary updated? Reef Diary was last updated on July 17, 2025, indicating active development and support for the application. ## Version history (last 5 releases) ### 1.3.6 — 2026-08-31 Bug Fixes and Performance Improvements Apex And RedSea Integration as Beta for Serious Reefer ### 1.3.3 — 2026-07-19 What’s New in Version 1.3.3 Minor Bug fix with overlay in Task and Live Stock ### 1.3.2 — 2026-07-18 What’s New in Version 1.3.2 ReefDiary is now available on Apple Watch. View tank health, 7-day stability trends, water parameters, tasks, budgets, and alerts from your wrist. Use Apple Watch complications for quick tank-health updates. Refresh tank data when your iPhone is unavailable. Improved light and dark themes with better contrast. Added easier password recovery. Performance improvements and stability fixes. ### 1.3.1 — 2026-06-15 Bug Fixes to improve performance and tracking ### 1.3 — 2026-06-07 Back up your current data from your old app. This new app version stores your data encrypted on a secure server. You will need to re-subscribe and create a new account. With the new version, you can access your data from any device or on the web via reefdiary.io Features include: • Web access and Mobile access • Improved performance • More AI-powered features • AI driven Analytics • AI driven Careguide • New Enterprise version available for shops, coral farms, and tank maintenance crews on the Enterprise plan ## Apps similar to Reef Diary Aquarium Management | App | Rating | Price | Category | | --- | --- | --- | --- | | [AquaTrack: Aquarium Tracker](https://appshunter.io/ios/app/aquatrack-aquarium-tracker/id6743827936) | 4.0 (10) | Free | Utilities | | [Reef Guard](https://appshunter.io/ios/app/reef-guard/id6755100588) | — | Free | Utilities | | [Reef.Tools](https://appshunter.io/ios/app/reeftools/id6739948464) | 3.0 (2) | Free | Utilities | | [AquaTrack - Aquarium Tracker](https://appshunter.io/ios/app/aquatrack-aquarium-tracker/id6757683461) | 5.0 (1) | Free | Utilities | | [Reef Buddy: Reef Tank Tracker](https://appshunter.io/ios/app/reef-buddy-reef-tank-tracker/id1593580822) | 4.1 (19) | Free | Utilities | | [ReefMate: Aquarium Tracker&Log](https://appshunter.io/ios/app/reefmate-aquarium-tracker-and-log/id6754282635) | — | Free | Utilities | ## Related topics [reef market](https://appshunter.io/ios/topics/reef-market) · [shedd aquarium](https://appshunter.io/ios/topics/shedd-aquarium) · [poseidon reef](https://appshunter.io/ios/topics/poseidon-reef) · [reef color](https://appshunter.io/ios/topics/reef-color) · [iclicker reef](https://appshunter.io/ios/topics/iclicker-reef) --- *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 2026-09-03.*