Volcast vs Solcast

Maximize your solar investment with Volcast – the ultimate PV production forecast tool. Stop guessing when the sun will power your home. Volcast provides an accurate, hour-by-hour solar production forecast for your PV system, covering today and the next 7 days. Designed by solar owners for solar owners, Volcast helps you align your energy-heavy tasks with peak production windows to maximize self-consumption. SMART HOME & HOME ASSISTANT INTEGRATION Volcast features a professional REST API for Home Assistant users. Export your forecast data directly to your HA dashboards to automate your smart home based on solar availability. ADVANCED PHYSICS-BASED ENGINE We combine real-time satellite irradiance data with a high-fidelity physics engine. We account for: Multi-String Support: Perfect for complex east-west or multi-roof systems. Bifacial Panels: Specialized modeling for modern modules. AI Auto-Calibration: Our algorithms learn your system's performance over time. Horizon Profiling: Accounts for shading from terrain and obstacles. KEY FEATURES: 7-Day Precise Forecast: Hour-by-hour power prediction. Hourly View Toggle: Switch each hour between forecast, actual production, and the difference at a tap. Multi-Device Sync: Production history and calibration stay in sync across every device you sign in on. Notification Center: Evening forecasts, snow warnings, and peak window alerts. Privacy First: Secure processing, no ads, no third-party tracking. PLANS & PRICING: Free: 48-hour high-accuracy forecast. Premium (monthly or yearly): Full 7-day forecast, AI calibration, and Home Assistant API access. Start with a 7-day free trial. Terms of Use: https://volcast.app/terms Privacy Policy: https://volcast.app/privacy Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period. You can manage subscriptions in your App Store account settings.

Weather That Guides Your Day Most weather apps stop at the forecast. Solcast goes further by turning real time local weather into personalized, actionable guidance for your everyday life. It bridges the gap between raw data and your daily routine, telling you exactly how the conditions affect you and your family. A DAILY BRIEFING TAILORED TO YOUR LIFE Every morning, a single glanceable card delivers up to six prioritized action items. You receive UV protection reminders, rain gear nudges, pollen warnings, ideal dog walking times, and migraine alerts. Every insight is shaped by your personal preferences and physical sensitivities, so you only see what actually matters to you. NATIONAL HOLIDAY AWARENESS Solcast automatically detects public holidays across a wide range of countries and surfaces them as a top priority item in your daily briefing. Whether it is a long weekend, a bank holiday, or a national celebration, you always know when a holiday affects your plans before you step outside. 16 LIFESTYLE INDICES CALCULATED ON DEVICE Solcast tracks dressing comfort, UV exposure, sunscreen (SPF) guidance, eye protection, skin care, flu risk, allergy levels, air quality, outdoor sports suitability, travel conditions, hydration needs, road and traffic safety, car wash timing, air conditioning needs, and home ventilation. All 16 indices are computed locally on your device using real time weather data, with no calculation lag and no personal data sent to any server. SMART OUTFIT RECOMMENDATIONS An intelligent engine selects clothing across seven categories including tops, bottoms, outerwear, footwear, accessories, kids, and pets. It evaluates temperature, precipitation, wind, UV, your dressing style, and your household settings to ensure everyone is dressed right for the conditions. DEEP CUSTOMIZATION Your dashboard adapts instantly to your life. Configure settings for temperature sensitivity, sun sensitivity, allergy awareness, migraine sensitivity, dressing style, outdoor exercise habits, kids, pets, and car ownership. Each setting reshapes the entire experience immediately. SEAMLESS MULTI LOCATION TRACKING Save up to four cities and switch between them instantly. Every location receives its own forecast, lifestyle indices, outfit picks, and daily briefing displayed in that city's local timezone, making it effortless to manage travel or check on family abroad. Your current GPS location is always available and never counts toward the limit. RICH DATA WITH PRIVACY FIRST DESIGN Solcast delivers rich weather details including sunrise, sunset, cloud cover, visibility, barometric pressure, dew point, wind gusts, air quality, and pollen levels. Weather, air quality, and holiday data are fetched from trusted providers, and every lifestyle index, outfit pick, and briefing is then computed entirely on your device. There are no accounts required, no tracking, and no advertisements. KEY FEATURES - Weather Forecast: Detailed seven day outlook featuring over 27 weather metrics with hourly breakdowns. - Daily Briefing Card: Up to six actionable lifestyle tips synthesized and prioritized every morning. - National Holiday Detection: Automatic public holiday alerts across a wide range of countries. - Lifestyle Indices: 16 distinct indices covering health, outdoors, commute, and home. - Personalized Outfit Planner: Smart clothing recommendations across seven categories. - Migraine and Pressure Tracking: Risk alerts driven by barometric pressure and altitude changes. - Allergy and Air Quality Monitor: Pollen and air quality monitoring with personal sensitivity settings. - Family and Pet Care: Specialized weather guidance for kids, pets, and car owners. - Sunrise and Sunset Timing: Time aware tips for outdoor activity planning and pet walks. - Beautiful Interface: Warm, accessible design with full light and dark mode support. - On Device Intelligence: Complete privacy with no accounts and no ads.