Jazz Disk Bench Pro vs GN Viewer

Jazz Disk Bench is a pro-grade storage performance measurement tool designed for SSDs, SD cards, and internal/external storage. Get accurate data on your device's throughput with industry-standard testing methods. Key Features: * Sequential Speed Test: Measure peak performance for copying large files (movies, games, etc.). * 4K Random IOPS: Evaluate system responsiveness. Low random performance is often the root cause of device lag. * Pro Stress Test: Push your storage to the limit with 2GB–100GB tests to check stability and "real" NAND speed after cache exhaustion. * External Storage Support: Fully compatible with USB drives and SD cards via custom folder selection. Benchmark Details: * Sequential Test: Reads/writes 16MB blocks sequentially. Perfect for testing raw transfer speeds. * Random Test (4K): Reads/writes 4KB blocks at random locations. This reflects how fast your OS launches apps and handles small files. * Stress Test: Sequentially writes massive data (up to 100GB). Ideal for pro users to test SLC cache size and sustained NAND write performance. Note: For external storage tests, ensure a stable connection and write permissions.

GN Viewer — Multi-video and slideshow player GN Viewer is a private, on-device media vault for photos, GIFs, WebPs, and videos — with no accounts, no cloud storage, and no tracking. Everything stays on your device. But GN Viewer is more than a gallery. Spotlight Mode — Play Multiple Videos at Once Drop videos, images, GIFs, and WebPs onto a canvas and watch them all play together in real time. No rendering, no exporting — just instant multi-video playback. Perfect for: • Visual inspiration boards • Aesthetic mood mixes • Comedy reaction layers • Music visualizers • Custom slideshows • ASMR + relaxing ambience collages • Storyboarding concepts • Before/after video comparisons • And creative layouts that normal galleries can’t do Resize, rotate, overlap, and arrange media freely. Your phone becomes a personal “live video collage” studio. PIN-Locked Private Vault • Your media stays offline and on your device only. • No uploads, accounts, AI or cloud services. • Optional Delete PIN instantly wipes your vault if entered at unlock. Canvas Mixes Save your custom canvas layouts for instant replay. Perfect for mood boards or repeated slideshow sets. Advanced Slideshow Engine • Adjustable speed for photos, GIFs, WebPs, and videos • Sequential or shuffle • Optional overlays (Pro) • Optional Bounce-to-Beat animations (Pro) • Designed for loop-able aesthetic slideshows Organize with Albums • Create albums for trips, projects, people, or themes • Add items from the main library or import directly • Sort and filter by type, size, name, or duration Fast Import & Export • Import from photo library • Export any item back to your system gallery • All processing happens locally No Tracking. No Ads Except Rewarded Pro-Unlock. We do not track you or upload any media. Pro features unlock by watching a rewarded ad — no subscriptions required.