Battery Tracker vs CoolGuard

Battery Tracker is more than just a battery percentage display. It's your personal battery coach, helping you understand your charging habits by tracking charge and discharge records, and discover ways to extend your battery's lifespan. ■ Real-time Battery Monitor • At-a-glance view of battery level, charging, discharging, and full charge status with a large gauge • Displays charging speed (%/h) and speed rating (Slow, Normal, Fast, Super Fast) • Shows estimated time to target charge and full charge • Displays discharge speed (%/h) while using the battery • Real-time chart of recent battery level changes • Provides battery status and charging tips for different charge levels • Shows current charging session's start time, charged amount, and elapsed time ■ Automatic Charge & Discharge Logging • Automatically records charging and battery usage as sessions • Summarizes start/end times, battery levels, and duration • Compares estimated vs. actual time to reach target charge • View battery level change graphs in session details • Name your chargers to differentiate them • Records persist even if you close and reopen the app; all data is stored only on your device ■ Battery Analysis (Premium) • Number of observed cycles calculated from charging records • Recent average charging speed (%/h) • Long-term charging speed trend graph for 7 days, 30 days, and all time • Compare named chargers/cables by charge amount per hour (%/h) • Estimated remaining usage time based on average discharge speed (Free) ■ Smart Notifications • Charging cable disconnected alert (Free) • Target charge level alert: Choose from 80, 85, 90, 95, 100% (Premium) • Low battery alert: Set your own threshold between 5-25% (Premium) • Do Not Disturb time settings, such as bedtime (Premium) ※ Notifications work while the app collects battery information. Due to iOS background policies, notifications may not be delivered immediately after the app is completely closed. ■ Charging Tools • 5-minute real-time extended chart • Custom charging plans tailored to your goals • Charging speed diagnostics and battery care guide • Premium users can use anytime; Free users can access for the current session by watching an ad ■ Data Export • Export charging records as CSV files (Excel compatible) • Export sessions and measurement samples as JSON files • Option to delete all saved records at once ■ Battery Tracker Premium • Remove all ads • Observed cycles, long-term charging speed trends, charger/cable speed comparison • Target charge level & low battery alerts, Do Not Disturb times • Instant access to 5-minute real-time chart, custom charging plans, charging speed diagnostics • Offers 1-month, 3-month, 6-month, 12-month auto-renewing subscriptions and a lifetime purchase option ■ Free Features • Real-time battery monitor, charging speed, estimated full charge time • Charge/discharge records and session details • Estimated remaining usage time • Cable disconnected alert • CSV & JSON export ■ Privacy Policy • Battery records and settings are stored only on your device. • We do not transmit or sell your charge/discharge records to servers. ■ Please Note • iOS only provides battery level and charging status information. Temperature, voltage, current, power (W), and battery maximum capacity/health cannot be displayed due to iOS policy, and this app does not offer these features. • Charging speed and estimated times are calculated estimates based on battery level changes and may vary depending on screen usage, heat generation, battery protection features, and cable/charger quality. • The more charging sessions you record, the more accurate the analysis becomes. • App-specific battery usage is not provided. - Terms of Use: https://drendrendren.com/terms?app=battery-tracker - Privacy Policy: https://drendrendren.com/privacy?app=battery-tracker Healthy charging habits start with good records.

CoolGuard keeps an eye on your phone's heat — and at night, it's the clock on your nightstand. A hot iPhone runs slower, its battery ages faster, and in summer it heats up within moments in the sun or while gaming, navigating, or charging. CoolGuard shows you where your phone stands on a four-level scale (Normal, Slightly Warm, Hot, Critical), warns you in time, and tells you what to do. HEAT MONITORING • Live heat level on the main screen, with a color-coded ring and a quick tip • Heat Trend: 1-hour and 24-hour curves in a banded or clean style — drag your finger to read the details • Heat Log with calendar and map: when and where your phone got hot • Alerts from the level you choose: push notifications, sound alerts, quiet hours • Monitor Mode: background monitoring, with a Live Activity on the Lock Screen and in the Dynamic Island • Cooling tips and a carefully curated selection of active coolers NIGHT CLOCK AND ALARM • Sleep Mode: dark screen with just the clock and the outdoor temperature — three sizes, your choice of color • Alarms: up to 10, repeating daily; on iOS 26 and later they ring through the system alarm, even when your phone is silenced • Landscape view: big clock, swipeable alarm bar, brightness slider • Burn-in protection: slow pixel drift and dimming to keep your display safe • 12- or 24-hour clock, with seconds if you like WEATHER • Outdoor temperature, with today's and tomorrow's highs and lows • Weather face in the ring: the sun and moon travel around it from sunrise to sunset • A warning on dangerously hot days WIDGET • Small: thermometer, weather, battery level, clock • Medium: adds the heat trend curve and the date • Works on the Lock Screen, too BATTERY • Battery Health and cycle count, compared month by month with your phone's heat MORE • 50 languages, Celsius or Fahrenheit • Private by design: no ads, no analytics, no accounts — your Heat Log never leaves your phone • Free — you can support development with a tip Note: iOS doesn't expose exact temperatures to apps — CoolGuard shows Apple's four official thermal levels.