ReefFlow: Reef Tank Tracker
Local-first reef log & alerts
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Free
In-App Purchases
About
ReefFlow is the Local-First companion for serious aquarium keepers — saltwater and freshwater. Log your parameters in seconds and get smart, rule-based warnings before a crash — not AI gimmicks. Everything lives on your phone; your data is yours forever.
- Track saltwater (Alk/Ca/Mg…) and freshwater (GH/CO2/TDS…) parameters with trend charts
- Smart alerts: Alk swings, low Ca, salinity jumps (ATO faults), rising nutrients
- Step-by-step cycling guide for new tanks (live rock / dry rock)
- Two-Part dosing calculator
- Maintenance reminders, livestock profiles, unlimited diary
- Full JSON/CSV export — no lock-in
- 5 languages, light/dark themes
- One-time $9.99 Pro — no subscription, no annual cloud fee
Your tank. Your data. ReefFlow.
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What's New in ReefFlow
1.0.2
August 11, 2026
New in ReefFlow 1.0.2: • Added a visible diary list so saved entries are easy to find and manage. • You can now choose which parameter items appear on the Parameters page. • Fixed notification warning prompts and related reliability issues. • General stability and usability improvements.
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In-App Purchases
$9.99
ReefFlow Pro
Unlock everything + all future features.
