Battery Tracker vs WattCheck

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.

WattCheck helps you understand which charging cables and power adapters actually perform well. Have a drawer full of USB-C and Lightning cables? Not sure which one charges fast, which one is slow, and which one may be worn out? WattCheck makes it easy to test and compare your charging setup using real-world battery charging behavior. Start a test, keep your device connected, and WattCheck estimates charging performance over 5, 10, and 20 minute windows. Save results for each cable and charger, build a personal cable ranking, and quickly spot weak or inconsistent charging gear. KEY FEATURES • Charging Performance Test Run simple charging tests and see estimated speed in % per hour and normalized watt estimates. • 5, 10 and 20 Minute Results Get quick early feedback after 5 minutes, better accuracy after 10 minutes, and stronger comparison data after 20 minutes. • Cable Ranking Save tests for different cables and automatically rank them by performance. • Best and Weakest Cable Detection WattCheck highlights your best-performing cable and helps identify cables that may be slow, weak, or degraded. • Charger Comparison Name your power adapters and compare how different chargers perform with different cables. • Test History Keep a complete history of your charging tests, including cable name, charger name, device profile, battery change, duration, estimated power, and notes. • Charts View charging progress and speed charts to better understand each test. • Device Profiles Choose your iPhone or iPad model so WattCheck can use the correct battery capacity for better estimates. • Smart Warnings WattCheck warns you when a test may be less reliable, such as when battery level is above 80%, where iOS may reduce charging speed. • CSV Export Export your test history for personal tracking, troubleshooting, or comparison. HOW IT WORKS WattCheck uses public iOS battery information to estimate charging performance based on battery level changes over time. It does not require special hardware and does not use private system APIs. For best results: • Test between 20% and 70% battery • Use the same device when comparing cables • Use the same charger when comparing cables • Keep the device temperature normal • Run longer tests for better accuracy IMPORTANT NOTE WattCheck does not directly read USB voltage, current, or USB Power Delivery data. iOS does not provide this information to regular App Store apps. WattCheck estimates real-world charging performance based on battery level changes, making it useful for comparing cables and chargers in everyday conditions. PREMIUM WattCheck Premium unlocks unlimited charging tests, full history, cable ranking, charts, charger comparison, and CSV export. Use WattCheck to clean up your cable drawer, find your best charger setup, and stop guessing which cable is slowing you down. Subscription Plans: - Payment will be charged to your App Store Account at confirmation of purchase. - Your subscription will automatically renew unless auto-renew is turned off at least 24 hours before the end of the current subscription period. - Your account will be charged for renewal within 24 hours prior to the end of the current subscription period. Automatic renewals will cost the same price you were originally charged for the subscription. - Manage or cancel your subscription from your user settings in the App Store at any time after purchasing. - Any unused portion of a free trial will be forfeited if you purchase a subscription. Privacy Policy: https://sunteame.com/privacy-policy/ Terms of Use: https://sunteame.com/terms-of-service/ If you have questions or feature requests, use the support link in the app to contact us.