Pricing
Simple, transparent pricing
Start free with one tank. Upgrade when you need more.
Premium
$4.99/month
7-Day Free Trial
or $39.99/year (Save 33%)
- Unlimited tanks
- Full history and charts
- Push notifications
- Export water test history (CSV)
- AI Tank Advisor: 1,000 questions a month
- Fish-sitter handoff guides
- Cloud sync
All plans include core features like parameter tracking and maintenance reminders.
Plan details
Compare plans
| Feature | Free | ✦ Premium |
|---|---|---|
| Number of tanks | 1 | Unlimited |
| Water parameter logging | ||
| Maintenance reminders | ||
| Livestock tracking | 25 entries per tank | Unlimited |
| Test history | 30 days | Full history |
| Dosing calculator | ||
| Works offline | ||
| Sync across devices | — | |
| Push notifications | — | |
| Data export (JSON backup) | ||
| Water tests (CSV export) | — | |
| Fish-sitter handoff guides | — | |
| AI Tank AdvisorAsk questions in plain language. Answers use your tank's type, size, livestock and latest water test. Needs an internet connection. | 10/mo | 1,000/mo |
| Priority support | — |
Got questions?
Frequently asked questions
Can I try Premium before paying?
Yes! All paid plans include a 7-day free trial. You can cancel anytime before the trial ends and won't be charged.
What payment methods do you accept?
We take all major credit cards via Stripe. We don't store your card info. Stripe handles that securely.
Can I cancel my subscription?
Yes, you can cancel anytime from your account settings. You'll retain Premium access until the end of your billing period.
What happens to my data if I downgrade?
Your data is never deleted. If you downgrade to Free, you'll retain access to your first tank and the most recent 30 days of test history.