Support

Need a hand, or spotted something wrong? We read every message.

Contact

Email [email protected] and we'll get back to you, usually within a couple of days.

To help us help you, include your iPhone model, your iOS version, and — if it's about a calculation — the numbers you entered and what you expected.

Report a chemistry or calculation issue

Reef Stability's chemistry is sourced, but if you think a number is off, please tell us. Include the product or parameter, and your source if you have one. Getting the chemistry right matters more to us than almost anything, so these reports go to the top of the pile.

Common questions

• Do I need an account? No. Reef Stability works with no account and keeps your data on your device.
• Is my data backed up? Only if you turn on iCloud backup — then it syncs through your own iCloud account.
• Can I export my data? Yes. Exporting your own logs is free, always.
• Is there an Android version? Not yet — Reef Stability is iPhone-only for now.

Guides

Learning the chemistry? Our guides explain alkalinity, calcium and magnesium in plain language, with sources.