OU Reader vs VDO Compress

OU Reader là công cụ đọc sách giúp người dùng có thể đọc sách điện tử dễ dàng trên các thiết bị iOS với các chức năng phóng to, thu nhỏ, đánh dấu trang, đồng bộ ghi chú, ...

Compress, convert, and create — VDO Compress is the all-in-one video toolkit for iPhone & iPad. Shrink huge files, preserve HDR & 4K quality, and do it all with 100% offline, privacy-first processing. Running out of storage? VDO Compress shrinks video sizes by up to 80% without sacrificing visual quality — powered by a lightning-fast Native Hardware Engine that's up to 5x faster and far more battery-efficient than traditional apps. Everything happens 100% locally on your device. No internet required, and absolutely no cloud uploads. Your videos never leave your phone — your privacy is guaranteed. ONE APP, SEVEN TOOLS: • Compress Video — Shrink file size, keep the quality • Batch Compress — Compress several videos at once • Make GIF — Turn a short clip into a looping GIF • Extract Audio — Save the soundtrack as MP3 or M4A • Extract Images — Save video frames as JPG images • Reverse / Boomerang — Play a short clip backward, or bounce it • Photo Slideshow — Turn your photos into a video THREE WAYS TO COMPRESS: • Simple — 5 intuitive quality presets with an instant "Estimated Savings %". Shrink with a single tap! • Advanced — Full control for pros. Fine-tune Resolution, Bitrate (Mbps), and Frame Rate (FPS) with exact file-size estimates. • Target Size — Just tell it the size you want; VDO Compress does the math. BUILT FOR QUALITY: • 4K & HDR Support — Perfectly handles massive 4K files and intelligently preserves High-Dynamic-Range (HDR, BT.2020) 10-bit content. • Flawless Portrait Video — Our custom scaling algorithm perfectly handles iPhone and iPad portrait videos, with no squished or deformed aspect ratios. • Smart Fallback System — If a rare format struggles on native hardware, our robust software engine (H.265) automatically takes over gracefully. • Detailed Video Inspector — Instantly view the codec, frame rate, and raw metadata of your original video before you start. • Visual Trimmer — Scrub a filmstrip to trim GIFs and clips, with a live looping preview. KEY FEATURES: • No Subscriptions — Enjoy the app without the burden of monthly fees. • 100% Offline & Private — All processing is on-device; nothing is ever uploaded. • Smart Point System — Earn points to process videos entirely offline and completely ad-free! • Interruption Recovery — Switching apps? Our advanced lifecycle monitor recovers and resumes your progress safely. • Global Support — Fully localized in 15 languages. Free up gigabytes of space on your device today with the all-new VDO Compress!