iDiagnostic vs TekPDF

iDiagnostic is a fast, easy-to-use hardware diagnostic tool for iPhone and iPad. In just a few taps, verify that every key hardware component on your device is working correctly: DISPLAY - RGB color test cycles through Red, Green, and Blue full-screen patterns to spot dead pixels and color shifts. TOUCH SCREEN - Configurable grid (4x3 to 20x12) covers the entire screen so you can confirm every region responds correctly. - Real-time progress counter — tap to fill cells, get instant pass/fail when complete. CAMERAS - Detects every physical camera on your device — wide, ultra-wide, telephoto, TrueDepth, LiDAR. - Test each one individually with live preview and capture. LOUD SPEAKER - Plays a recognizable melody (Twinkle Twinkle Little Star) through the bottom speaker so you can verify audio output and quality. INTERNAL SPEAKER (EARPIECE) - Same melody routed through the top earpiece — hold the phone to your ear to confirm. MICROPHONE - Record your voice with a live audio level meter, then play it back to verify recording and playback both work. PRIVACY FIRST iDiagnostic runs entirely on your device. No data is ever collected, transmitted, stored, or shared. The app makes zero network requests. Your camera, microphone, and test results stay 100% on-device. LANGUAGES Available in English and Vietnamese — automatically follows your device's system language setting. Perfect for: - Anyone buying a used iPhone — verify hardware before paying - Phone repair shops checking refurbished devices - Developers testing app permissions and AVFoundation behavior - Tech enthusiasts curious about which cameras their phone has No ads. No tracking. No accounts. Just a clean diagnostic tool that does one thing well.

Welcome to TekPDF - your ultimate, offline-first document companion designed for speed, simplicity, and absolute data privacy. TekPDF brings a complete suite of professional PDF utilities right to your iPhone and iPad. Whether you need to scan a receipt, merge contract drafts, compress large files, convert images, or password-protect sensitive documents, TekPDF handles it all locally. Unlike other document utilities, TekPDF does not upload your files to external servers. Every single operation—from optical character recognition (OCR) to high-fidelity PDF compression—takes place locally on your device's processor. Your sensitive business documents, financial records, and personal IDs remain 100% private and secure. WHY CHOOSE TEKPDF? • 100% Offline and Private Processing: Operates entirely on-device. No internet connection is required, no documents are uploaded, and no files ever leave your device. • Lightning-Fast Performance: Perform complex operations like OCR scanning, PDF merging, and page reorganizing in a fraction of a second. • Clean and Secure: Access professional, desktop-grade document tools on the go with a lightweight, battery-efficient interface. CORE FEATURES AND UTILITIES 1. Smart Document Scanner and Advanced OCR Turn your camera into an intelligent, high-resolution scanner. - Scan invoices, receipts, book pages, handwritten notes, and contracts instantly. - Automatic edge detection, perspective correction, and smart cropping ensure a clean scan. - On-device OCR translates image scans into searchable, selectable text offline. 2. High-Fidelity PDF Compressor - Reduce PDF file size significantly while retaining professional readability. - Adjust compression settings to balance file size and visual clarity. 3. Merge and Split PDF Documents - Combine multiple PDFs, scans, and converted documents into a single PDF. - Split large PDF documents or extract specific pages. 4. Image to PDF and PDF to Image Conversion - Convert JPG, PNG, and HEIC files into clean, multi-page PDF documents. - Extract pages from existing PDFs and save them as high-quality images. 5. Secure, Lock and Unlock PDF Files - Add password protection to secure sensitive PDFs with advanced encryption. - Remove passwords from PDFs instantly for quick access. 6. Reorganize and Edit PDF Pages - Delete unwanted pages, insert new ones, and rotate pages easily. - Rearrange page sequences with simple drag-and-drop. Download TekPDF today and unlock the ultimate suite of local document tools without compromising your privacy! PRIVACY POLICY & TERMS OF USE (EULA) We are committed to protecting your personal data and privacy. For more information regarding our data practices and legal terms, please review: • Privacy Policy: https://teksevi.com/privacy-policy • Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/