HSA vs ToolsDeck

After connecting App to Car Amplifier with Integrated DSP,  EQ, BASS, TIME ALIGNMENT, PHASE, MUTE, FILTER , SAVE SOUND SETTING TO PHONE, SAVE SOUND SETTING TO AMPLIFIER, LOAD SOUND SETTING FROM PHONE, RCA OUTPUT etc could be controlled through this App. How to use: 1.Install App and turn on power of car 2. Turn on Bluetooth on your iPhone 3,Open App and wait for around 5 seconds, then click “Connect” icon in left corner of bottom. Amplifier will be connected to App automatically. 4.DIY you preferred sound and then click “Save to AMP” icon to save. Or click “ Save to Phone” to save.   Note： 1.Do not exit app during saving and do not turn off power supply, program may be shut down caused by this.

ToolsDeck: Your All-in-One Smart Toolbox Why download 17 separate apps when ToolsDeck puts every utility you need right in your pocket? From unit conversions to PDF editing, QR scanning to habit tracking, countdown events to flashlight, ToolsDeck is the only toolkit app you'll ever need. Every tool works 100% offline with zero ads, keeping your data private and your experience smooth. Perfect for students, professionals, travelers, and everyday life. 17 Powerful Tools Built In: Unit Converter: Convert 10+ categories: length, weight, temperature, volume, area, speed, time, data storage, energy, pressure and more. Real-time accurate results. QR Code & Barcode Scanner: Instantly scan QR codes and barcodes, generate your own codes for URLs, WiFi, contacts, text. Results auto-copied for quick sharing. Pomodoro Focus Timer: Beat procrastination with professional time management. Custom work/break intervals, task tracking, statistics, focus sounds, productivity insights. Password Generator: Create ultra-secure random passwords. Customize length, character types (uppercase, lowercase, numbers, symbols), exclude ambiguous characters. Health Calculator: BMI, body fat, calorie counter, BMR, ideal weight, water intake recommendation. Your personal health management assistant. PDF Tools Suite: Merge, split, compress, rotate, encrypt, decrypt, add watermarks. Full-featured PDF editor with page preview and history. File Converter: Convert between PDF, TXT, HTML, Markdown formats. Batch support, large file processing, saved files management. Random Generator: Random numbers, dice roller, lottery quick pick, history saving. Perfect for decisions, games, giveaways. Spirit Level: Professional-grade precision bubble level using device sensors. Calibrate angles for hanging pictures, carpentry, construction. Color Picker: Identify colors from camera or photos, convert between HEX, RGB, HSL, CMYK, HSV. Essential for designers and developers. Tip Calculator: Smart bill splitting, tip percentage slider, per-person breakdown. Dining and travel essential. Notepad & Notes: Quick notes, checklists, memos. Local storage, no login required, organized by date. Habit Tracker: Build good habits, break bad ones. Daily/weekly/monthly cycles, streak counter, progress charts, reminders, achievement badges. Timezone Converter: Compare times across world cities and time zones. Perfect for remote work, international calls, travel. Water Reminder: Stay hydrated! Custom daily goals, intake logging, hydration statistics, smart reminders. Countdown Timer: Count down to important events: birthdays, holidays, meetings, deadlines. Widget support, notifications, multiple events. Flashlight: Bright LED flashlight with adjustable brightness, SOS strobe mode, screen light option. Quick access from home screen. Customizable Layout: Reorder tools any way you like, pin favorites to top, hide tools you don't use. Your personalized toolbox. Why Choose ToolsDeck? 100% Offline & Private: All tools work without internet. Data stays on your device. No account needed. Beautiful & Intuitive: Clean modern interface, smooth animations, multiple themes including dark mode. 9 Languages Supported: English, Spanish, French, German, Japanese, Korean, Russian, Simplified & Traditional Chinese. Fast & Lightweight: Deferred loading technology, optimized performance, minimal battery usage, opens instantly. Regular Updates: New tools and improvements added constantly based on user feedback. Perfect For: Students: Calculators, converters, notes, Pomodoro focus Professionals: PDF tools, file converter, timezone for work Travelers: Tip calculator, unit converter, QR scanner, flashlight Designers/Developers: Color picker, password generator Everyday Life: Habit tracker, water reminder, countdown, notepad, level Health & Fitness: BMI, calorie counter, water tracking Download ToolsDeck today and turn your phone into a Swiss Army knife of productivity! Your all-in-one toolkit awaits.