Unzip Pro vs AlexCalc

This is a powerful, professional, and easy-to-use compression and extraction tool that supports popular archive formats including ZIP, RAR, 7Z, and TAR. It also allows you to create password-protected archives to keep your files secure. Whether you’re working with documents, managing study materials, or sharing files on the go, this tool has you covered. Multi-Format Extraction Made Easy • Supports ZIP, RAR, 7Z, TAR, and other common archive formats • Fully compatible with password-protected archives—just enter the password to extract • Extracted files can be viewed, previewed, or exported directly Use cases: Open archive files received via chat apps or email, access encrypted downloads from cloud storage, or organize multiple archive packages with ease One-Tap Compression, Efficient & Secure • Create ZIP, 7Z, and TAR format archives • Add password protection to keep files private • Compress multiple files in one go to save storage space Use cases: Package project documents for sharing, back up photos, or create secure archives for sensitive content Flexible Import & Export Options • Import any file via the native Files app • Import photos and videos from your photo library and compress them into archives • Export extracted files via AirDrop, email, or other apps Use cases: Organize photo albums, manage school or work documents in bulk, quickly transfer files across platforms All-in-One Toolbox for Daily Needs A built-in toolbox helps streamline your file handling with practical tools: • Video compression: Reduce video size for easier sharing or backup • Audio compression: Optimize audio files to save space • Image compression: Retain clarity while shrinking file size • Video format conversion: Convert to MP4 for broader compatibility • Audio format conversion: Convert to MP3 for easier playback and editing Use cases: Compress travel videos to save device space, convert recordings for editing, or send optimized images and audio files quickly Why You’ll Love It • Clean, intuitive interface with zero learning curve • Comprehensive support for multiple formats and encrypted archives • All operations are processed locally—your privacy is fully protected • Perfect for school, office, or everyday file management needs Auto-Renewal Subscription Terms 1. We offer auto-renewable subscription plans: 1 week, 1 month, or 12 months. 2. Payment: Payment will be charged to your iTunes account upon confirmation of purchase. 3. Renewal: Subscriptions with a free trial will automatically renew into paid subscriptions. Your iTunes account will be charged 24 hours before the current subscription period ends. The fee depends on your selected plan, and the subscription will be extended by one cycle upon successful charge. 4. Cancel Renewal: To cancel a subscription, please manually disable auto-renewal at least 24 hours before the current period ends in your iTunes / Apple ID settings. No further charges will occur after cancellation. User Agreement: http://oss.yunjikeji.work/h5/unzipper/user.html Privacy Policy: http://oss.yunjikeji.work/h5/unzipper/privacy.html Subscription Agreement: http://oss.yunjikeji.work/h5/unzipper/subscribe.html

AlexCalc is a scientific calculator with LaTeX display, supporting button or plaintext input. Supports variables, complex numbers, and units. The LaTeX display makes it easy to see how your input is interpreted-- no more counting brackets! Some features: - complex number support, in rectangular or polar form (e.g. `3 + 4i` or `1 angle 90`) - variable storage (e.g. `123 -> x` then `3*x^2 - 4*x + 5 -> y`) - units in equations, and conversion (e.g. `1 inch * 3 ft to cm^2` or `sqrt(60 acre) - 100 ft`) - can enter input by button presses, typing, or copy/pasting. Button presses are all converted to plaintext input for easy copy/pasting. - equation display is simplified upon pressing enter. This means that when entering an equation, it is usually possible to look only at the LaTeX display and not the plaintext input: but when pressing enter, it will look nice. Redundant brackets are removed, including those that are needed for plaintext input (e.g. `(a + b)/(c + d)` can become "a + b" on the numerator and "c + d" on the denominator without brackets). - light/dark themes - previous input history can be accessed and edited by pressing "up" or "down" buttons. - previous inputs/vars/recently used units preserved when the app is closed - standard scientific calculator features, such as: - trigonometric functions: sin, cos, tan, arcsin, arccos, arctan - base 10 and natural logarithmic functions: log (base 10), ln (base e) - `e`, `pi` constants, and square root function - scientific notation input (e.g. `1.23E6` is 1.23 times 10^6)