📧 Email support
Questions, feature requests, or bug reports. We read them all.
lynxapps.contact@gmail.com⏱ Response time
We typically reply within 2-3 business days.
Frequently asked questions
How does the dosing calculator work?+
- Select your tank, or add a tank with its volume
- Choose a dosing product from the library, or add your own
- Enter your target change, and the App calculates the dose for your tank volume
- Log the dose so it appears in your tank's history
Always check the calculated dose against the product label and your test results. Dose gradually and test before and after changes. See our Terms of Use for the full disclaimer.
What does the reef health score mean?+
The health score summarizes your latest readings for each tracked parameter. Each parameter is marked optimal, warning, or critical, and no data appears when a parameter has not been logged yet. The score is a guide to help you prioritize, not a diagnosis of your tank.
How do I import test results?+
You can paste ICP or CSV test results directly, or choose a results file from your device. The App reads each row and adds the readings to your tank's parameter history.
Will my reminders still work after I restart my phone?+
Yes. The App reschedules your task and parameter-test reminders automatically after a restart. If a reminder does not appear, check the troubleshooting steps below.
Is my tank data private?+
Yes. Your readings, tanks, doses, tasks, livestock, journal entries, and expenses are stored only on your device. We do not receive them, and there is no account or sign-in. The App sends only anonymous usage events and crash reports through Firebase. See our Privacy Policy for full details.
What's the difference between Free and Pro?+
Free Plan:
- 1 active tank
- Unlimited parameter logging
- Task reminders and dosing calculator
- Livestock tracking, journal, and timeline
Pro Plan:
- Unlimited tanks and dosing products
- Full trend history
- Maintenance & equipment log
- Home screen widget
- CSV & PDF export
- Expense tracker
What are the Pro subscription options?+
- Monthly: $2.99/month (auto-renews)
- Yearly: $29.99/year (~$2.50/month, auto-renews)
- Lifetime: $49.99 one-time purchase (permanent access, no renewal)
All prices in USD. Prices may vary by region. All purchases are processed by Google Play.
How do I restore a purchase on a new phone?+
Sign in to the same Google account on the new device, open ReefDose, and use Restore purchases in Settings. Your Pro access is tied to your Google Play account, not to the device.
How do I manage or cancel my subscription?+
You can cancel anytime through Google Play:
- Open the Google Play Store
- Tap your profile icon (top right)
- Select Payments & subscriptions
- Tap Subscriptions
- Find ReefDose and tap Cancel subscription
You keep Pro access until the end of your current billing period. For refund requests, visit Google Play's refund page.
Which Android versions are supported?+
ReefDose for Android requires Android 8.0 (Oreo) or later. The exact requirements will also be listed on the Google Play Store page at launch.
Troubleshooting
Reminders not appearing
- Make sure notifications are enabled: Android Settings → Apps → ReefDose → Notifications
- Allow exact alarms if prompted: Android Settings → Apps → ReefDose → Alarms & reminders
- Check that battery optimization is not restricting the App: Android Settings → Apps → ReefDose → Battery
- Confirm the reminder time is set correctly in the App
Pro features not unlocking
- Make sure you are signed in to the Google account you purchased with
- Open Settings in the App and tap Restore purchases
- Check your subscription status in Google Play → Payments & subscriptions
- If the issue persists, contact support
App crashes or won't open
- Force-close the App (recent apps → swipe away)
- Restart your Android device
- Update the App from Google Play
- As a last resort, clear the App's storage or reinstall. This deletes all local data.
Still need help?
Can't find your answer? Our team is happy to help with any question or issue.
Contact supportTypical response time: 2-3 business days
More resources
- App overview: features and pricing
- Privacy Policy: how your data is handled
- Terms of Use: terms and conditions
- ReefDose for iOS: our iOS version