Grow Calc vs DrainMaster Plus

Grow Calc – Smart Grower’s Calculator Grow Calc is an all-in-one toolkit for growers, combining precise calculators and reference tools to optimize every aspect of plant cultivation. From light and canopy planning to climate, irrigation, nutrition, and water chemistry, Grow Calc provides instant insights based on proven horticultural formulas. Whether you are a hobby gardener, hydroponic enthusiast, or commercial grower, Grow Calc helps you plan, measure, and fine-tune your setup for healthier plants and higher yields. KEY FEATURES: Lighting Calculators • Convert PPFD ↔ DLI and plan photoperiods. • Estimate PPFD from lux using light source spectrum. • Calculate required PPFD to reach a target DLI. • Analyze fixture efficiency (µmol/J) and coverage per area. • Predict PPFD at different heights with distance adjustments. • Determine dimming percentage for your target intensity. • Evaluate uniformity ratios (min/avg, min/max) across your canopy. Canopy and Yield Planning • Plan planting density with row and spacing calculations. • Account for aisle losses to estimate effective growing area. • Calculate crown coverage, overlap percentage, and photons per plant. • Estimate DLI per plant and yield per square meter. • Forecast crop cycles per year and annual production. Climate Management • Calculate VPD (leaf and air) from temperature and humidity. • Get dew point, absolute humidity, and target RH for optimal VPD. • Estimate CO₂ injection rates and cylinder duration. • Plan dehumidification needs based on canopy area. Irrigation Tools • Perform dilution calculations (C1·V1 = C2·V2). • Calculate runoff percentage and cycle time per emitter. • Mix two water sources by EC to reach a target conductivity. • Plan daily irrigation schedule and net uptake. • Calculate system capacity and maximum plants supported by your pump. Nutrition Management • Convert EC to PPM with selectable TDS scales. • Calculate salt dosing based on target nutrient concentration. • Estimate acid requirements for pH adjustment. • Convert between mg/L and mmol/L. • Plan stock solutions and working concentrations. • Adjust and monitor N:P:K balance. Water Chemistry • Mix RO and tap water to reach target EC and alkalinity. • Calculate required dilution volumes for different water sources. • Convert alkalinity between mg/L CaCO₃ and dKH. Crop Presets • Access predefined target ranges for leafy greens, fruiting crops, cut flowers, potted plants, and ornamentals. • See recommended DLI, VPD, and CO₂ levels for each crop type. • Quick-check your own PPFD, hours, temperature, and humidity against preset ranges. Grow Calc brings together the essential calculations and reference values that growers use every day. Simple to use, accurate, and comprehensive — your reliable companion for modern cultivation. Privacy Policy: https://sergeyvishnyov.github.io/GrowCalc-site/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

DrainMaster Plus shows you whether your plants get the right water and feed. Measure what goes into the pot and what drains out, and the app warns you early when salt builds up or the pH drifts. Every plant gets its own journal. Track electrical conductivity (EC), pH and temperature of your feed (nutrient solution) and of the water that drains out (runoff), in µS/cm, mS/cm or PPM (TDS). Calculators for humidity (VPD chart), light (DLI) and EC to PPM, a nutrient calculator for mixing and a grow journal (grow log, plant diary) with photos. For soil, coco coir, hydroponics, houseplants and indoor growing. Live readings over Bluetooth from compatible meters (pH meter, EC meter, pH pen). MEASURE • Guided measurement in a few steps or quick measurement • EC, pH and temperature for input and runoff • Bluetooth: live values directly from Apera meters (e.g. PC60-Z, PH60-Z, EC60-Z) • Display in µS/cm, mS/cm or PPM UNDERSTAND • Recommendations per plant to spot overfeeding, salt buildup and pH problems early • History and charts for every plant • Timeline with germination, stage changes, photos and notes • AI assistant: ask questions about your plant, the answers take its measurements into account (uses coins) TOOLS • VPD, DLI and EC/PPM calculators • Nutrient mixer COMMUNITY • Blog with posts and comments, translated automatically • Report content, block users, moderation with the option to appeal YOUR DATA • Works offline too, measurements and plants are stored on your device • Backup export and import • Optional DrainMaster Cloud: sync and automatic backup on up to 5 devices, 5 GB of storage for photos and 60 coins per month for AI features In 10 languages: German, English, French, Italian, Dutch, Polish, Russian, Spanish, Turkish and Arabic. Suitable for houseplants, hobby gardens, hydroponics and small professional setups. DRAINMASTER CLOUD (SUBSCRIPTION) DrainMaster Cloud is a monthly subscription that renews automatically. The price is shown in the app before purchase. Payment is charged to your Apple Account. The subscription renews unless it is cancelled in your account settings at least 24 hours before the end of the current period. Terms of Use: Apple's standard Terms of Use (EULA) apply: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://drain-master.de/datenschutz/