Reef Book

ReefSoft LLC Utilities iPhoneiPadiPod touchMac

Reef Book is a paid Utilities app for iPhone and iPad by ReefSoft LLC. Requires iOS 26.0. Updated August 15, 2026.

Price: 5.99 USD; on the App Store
Size: 166 MB; Age 4+
Updated: Aug 15; 2026 · v1.4

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About Reef Book

Smart Logbook for Aquarists Record a water test in seconds, see whether each reading is in range, and follow how your aquarium changes over time. Reef Book keeps every aquarium’s history together across iPhone, iPad, and Mac. Set up each reef, planted tank, freshwater aquarium, or other aquatic system with the parameters you test, the units you use, and the ranges you want to maintain. Record Without Friction • Open Quick Record from the app, a widget, or a Shortcut • Type an exact value or adjust it with a precision slider • Keep repeated tests as separate readings instead of losing the individual results • Mark frequently tested parameters as favorites for quicker access Understand Your Results • See which readings are within range and which need attention • Follow changes across recent results or your complete history • Use the activity heatmap to see when you tested and spot gaps • Compare supported conversions directly from a logged reading • Add notes and suggested tags for maintenance, dosing, livestock changes, and other events Share and Stay in Sync • Invite other aquarists to view or contribute to the same logbook • Create a shareable summary, preview it, and choose what to include • Keep every device up to date through iCloud • Schedule automatic backups and choose how many to keep • Use Reef Book without creating another account Plus fun iMessage stickers!

What’s new

Version 1.4 · Updated August 15, 2026

Version 1.4 brings a brand new native interface to iPad and Mac. • Open Quick Record from the app, a widget, or a Shortcut, then adjust the reading with a precision slider or type the value directly. • Keep repeated tests as separate readings in an editable timeline. • See when you tested with the new activity heatmap and updated trends. • Write notes and get matching tag suggestions. • Preview summaries and choose what to include before sharing. • View supported conversions beside logged readings. • Reorder aquariums and keep the same order across devices. This update also improves editing, Quick Record saves, collaboration, backups, exports, accessibility, and error handling.Version 1.4 brings a completely new native interface to iPad and Mac. • Open Quick Record from the app, a widget, or a Shortcut, then adjust the reading with a precision slider or type the value directly. • Keep repeated tests as separate readings in an editable timeline. • See when you tested with the new activity heatmap and updated trends. • Write notes and get matching tag suggestions. • Preview summaries and choose what to include before sharing. • View supported conversions beside logged readings. • Reorder aquariums and keep the same order across devices. This update also improves editing, Quick Record saves, collaboration, backups, exports, accessibility, and error handling.

App privacy

The developer, ReefSoft LLC, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

App details

Reef Book is a paid Utilities app for iPhone, iPad, iPod touch and Mac, developed by ReefSoft LLC. It requires iOS 26.0 or later, is 166 MB to download and is available in 5 languages. It was first released on August 28, 2025 and last updated on August 15, 2026.

Category: Utilities
Price: 5.99 USD
Version: 1.4
Size: 166 MB
Requires: iOS 26.0 or later
Compatibility: iPhone, iPad, iPod touch, Mac
Languages: English, French, German, Chinese, Spanish
Age rating: 4+
Released: August 28, 2025
Last updated: August 15, 2026
Developer: ReefSoft LLC

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Alternatives to Reef Book

Looking for apps like Reef Book? Here are 6 similar apps on the App Store. The highest rated is AquaTrack: Aquarium Tracker (4.1/5), and all 6 are free to download.

Reef Book vs. alternatives
App	Rating	Price	Last updated	Compare
Reef Book	–	5.99 USD	August 15, 2026
Reef Diary Aquarium Management	1.0 / 5 (1)	Free	Sep 29, 2026	Compare
DoserX	–	Free	Oct 30, 2026	Compare
ReefMate: Aquarium Tracker&Log	–	Free	Oct 20, 2026	Compare
AquaTrack: Aquarium Tracker	4.1 / 5 (11)	Free	Oct 29, 2026	Compare
Reef Buddy: Reef Tank Tracker	3.9 / 5 (20)	Free	Oct 30, 2026	Compare
Aquawiz	4.0 / 5 (1)	Free	Mar 29, 2026	Compare

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