
About
This app helps reef tank enthusiasts monitor water chemistry, coral health, and equipment maintenance with on-device AI. It provides detailed parameter tracking, coral health analysis, and automated reminders for a healthier, more manageable aquarium.
What's New in Reef Coach
1.1.0
September 5, 2026
Reef Coach 1.1 — you asked, we fixed it. • Edit your tanks: rename and update volume and type anytime. • Multiple tanks: add every system you run and switch between them instantly. Parameters, livestock, dosing, equipment, ICP reports, and your photo journal are now tracked per tank. • Stability: crash hardening and reliability fixes throughout. Thank you for the feedback — it directly shaped this update. Keep it coming on the support page, Reef2Reef, or r/ReefTank.
MoreSubscription plans
Reefer Annual
Everything in Reefer — AI coral analysis, ICP
User reviews
Developer apps
FAQ
What is Reef Coach?
Reef Coach is a lifestyle app designed for serious reef tank enthusiasts. It helps you track water chemistry, monitor coral health using AI, manage dosing schedules, and keep up with equipment maintenance.
Does Reef Coach have ads?
No, Reef Coach does not contain advertisements. The app is free to use with basic features and offers an optional subscription for advanced functionalities.
What are the subscription options for Reef Coach?
Reef Coach offers a 'Reefer' tier for $14.99/month or $129/year, which includes AI coral analysis, ICP integration, and unlimited history. There are also 'Aquarist Monthly' and 'Reefer Monthly' plans at $4.99/month and 'Reefer Annual' at $29.99/year.
What devices does Reef Coach support?
Reef Coach is currently supported on iPhone and iPad, with a companion app available for Apple Watch. It also features iCloud sync for seamless data across devices.
How does Reef Coach's AI work for coral health?
The on-device Apple Intelligence analyzes coral photographs, comparing color, polyp extension, and tissue condition against previous snapshots. This helps detect risks like RTN, bleaching, or growth acceleration privately.
Can Reef Coach help with ICP test results?
Yes, the 'Reefer' tier allows you to photograph or import ICP test reports from Triton, ATI, or Oceamo. The app's Vision OCR extracts over 30 trace element values into trackable data.
What is the update frequency for Reef Coach?
Reef Coach was last updated on September 5, 2026, with version 1.1.0. This update introduced significant features like on-device AI, iCloud sync, and Apple Watch support.
What are the limitations of the free version of Reef Coach?
The free tier allows for one tank, tracking all 8 basic parameters with trend data for 30 days. It also includes Home Screen widgets and test reminders, with no paywall to explore the basic features.





