PingWeather vs Curtain Calc Pro

PingWeather is the weather alert app for people who need more than a daily forecast. Instead of checking the weather constantly, let PingWeather monitor conditions and notify you only when they match your personal rules. CREATE CUSTOM ALERT RULES Set precise thresholds for any weather condition: temperature, precipitation chance, wind speed, UV index, humidity, visibility, and more. Choose "above," "below," or "between" comparisons to fine-tune exactly when you want to be alerted. SMART NOTIFICATION CONTROL Never get spammed again. Define time windows for when alerts are active, set maximum notifications per hour and per day, enforce minimum intervals between alerts, and configure quiet hours so you only hear from us when it matters. DUAL WEATHER ENGINE Powered by Apple WeatherKit with automatic Open-Meteo fallback. If one data source goes down, the other takes over seamlessly so you never miss a critical alert. PRIORITY LEVELS Assign Normal, High, or Critical priority to each rule. Critical alerts can break through Do Not Disturb so you always see the most important weather updates. KEY FEATURES - Unlimited custom alert rules (Pro) - 9 weather condition types to monitor - Smart time window and quiet hour controls - Frequency caps to prevent notification spam - Dual data source for reliability - Priority-based alert system - Background weather monitoring - Notification health dashboard - Location-based alerts - iCloud sync across devices (Pro) FREE VS PRO Free: Up to 3 alert rules, 1 location, 7-day history Pro: Unlimited rules, unlimited locations, full history, iCloud sync, and more SUBSCRIPTION INFORMATION: - Payment will be charged to your Apple ID account at confirmation of purchase. - Subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. - You can manage and cancel your subscriptions by going to your account settings on the App Store after purchase. - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription.

Curtain Calc uses a geometric coverage model to calculate how effectively a curtain panel blocks light from a given window. CALCULATION MODEL The engine computes direct-cover area minus an edge-leak penalty. The penalty is derived from the difference between the curtain's actual overlap and the user's target overlap on both side edges and the top. The result is a dimensionless coverage ratio (0–1), displayed as a percentage. INPUT PARAMETERS • Window width & height (cm) • Curtain panel width & height (cm) • Desired side overlap (cm, each side) • Desired top overlap (cm) OUTPUT • Coverage percentage with color-coded rating • Recommendation: whether curtain width or height needs to increase HISTORY & RE-USE Calculations are persisted via UserDefaults. Each record can be named, browsed in a list, and reloaded into the calculator as a prefill. LOCALIZATION English and Simplified Chinese, runtime-switchable without restart. PRIVACY Zero network activity. Zero data collection. No third-party SDKs.