Upgrade to Pro
Track parameters, predict crashes before they happen, and get a personalized dosing schedule.
Monthly
$5/mo
- ✓ Parameter tracking + trend charts
- ✓ Consumption rate inference
- ✓ Drift alerts + crash predictions
- ✓ Dosing schedule generator
- ✓ Dose logging
- ✓ Multiple tanks
- ✓ CSV export
Best Value
Yearly
$42/yr
$3.50/mo — Save 30%
- ✓ Parameter tracking + trend charts
- ✓ Consumption rate inference
- ✓ Drift alerts + crash predictions
- ✓ Dosing schedule generator
- ✓ Dose logging
- ✓ Multiple tanks
- ✓ CSV export
Lifetime
$84 once
2 years of yearly — then free forever
- ✓ Parameter tracking + trend charts
- ✓ Consumption rate inference
- ✓ Drift alerts + crash predictions
- ✓ Dosing schedule generator
- ✓ Dose logging
- ✓ Multiple tanks
- ✓ CSV export
- ✓ All future features included
The free calculator will always remain free. Pro unlocks tracking and insights.