Is There an App to Track EC, pH, and a Feeding Schedule?
Yes — this is a real, well-established category, and it's the natural next step once watering logging alone stops being enough. Feeding involves more variables than watering does: which fertilizer, what dose, and what the runoff EC and pH actually came back as. A good app treats those as connected data, not three separate notes.
What a fertilizer-cabinet app actually stores
The useful version of this category starts with your own products, not a generic nutrient database. A fertilizer cabinet lets you add the exact products you own — name, manufacturer, form (liquid, powder, granular, tablet), NPK composition, and the manufacturer's own dosing window — so every later calculation is anchored to the real bottle on your shelf, not a generic average that doesn't match your actual brand's concentration.
Logging EC, pH, and runoff alongside the feeding
The feeding log itself should sit next to the watering log, not in a separate part of the app, because a feeding is a watering with something added. Recording the input EC and pH, plus what came back in the runoff, turns a single feeding into a comparison: a high runoff-to-input EC ratio signals salt buildup before it becomes visible on the leaves, and pH drift is far easier to catch as a trend across several logged feedings than from memory of 'it seemed a bit off last time.'
Why a calculated calendar beats a manual schedule
Once your fertilizers are in the cabinet with real dosing windows, an app can generate the full-cycle feeding calendar automatically from the plant's age, growth stage, pot size, and substrate — updating the whole schedule in one recalculation if any of those inputs change, instead of you re-deriving a feeding plan by hand every time the plant moves stages. The honest caveat: if none of your cabinet fertilizers have confirmed dose data, a calendar generator should default to water-only days rather than guessing at a number.
How GrowScope handles this
GrowScope's fertilizer cabinet stores your real products with their manufacturer dosing windows, and the nutrition calendar auto-generates a full-cycle feeding schedule from that data plus the plant's age, stage, pot, and substrate — recalculable on demand. The feeding log records volume alongside optional input/runoff EC and pH, on the same screen as the watering log, and deterministic rule-based checks flag a high runoff-vs-input EC ratio (salt-stress risk) or pH drift automatically. If your cabinet has no confirmed dose data yet, the calendar is built water-only rather than guessing.
How GrowScope helps
This is a direct description of how GrowScope's Fertilizer Cabinet, Feeding Log, and Nutrition Calendar work together — see the docs page for the exact interface and fields.
Key takeaway
A real feeding-tracker app stores your actual fertilizer products with their real dosing windows, logs EC/pH/runoff next to each feeding, and auto-generates a full-cycle calendar from that data instead of leaving the math to you.