YabiVision vs Instant HDR

YabiVision turns your ordinary SDR photos into Adaptive HDR images with embedded Gain Maps, following the ISO 21496-1 standard. The exported photos display vibrant HDR highlights on capable screens and fall back gracefully to standard dynamic range on older devices. Load any photo from your library, adjust the HDR gain strength with a live preview slider, and export as HEIC or JPEG -- the result saves directly to your Photos with the HDR badge. No account needed, no subscriptions, no watermarks. Just better photos. For advanced users, YabiVision also lets you extract the Gain Map from an existing HDR photo as a grayscale image, import your own custom Gain Map (PNG), and compose it with an SDR base to produce precisely controlled HDR output. Key features: - Convert any SDR photo to Adaptive HDR (ISO 21496-1) with one tap - Adjustable gain strength with real-time HDR preview - Export as HEIC (recommended) or JPEG with embedded Gain Map - Extract Gain Maps from existing HDR photos - Import custom Gain Maps and compose HDR from SDR + Gain Map - Works on iPhone and iPad - Requires iOS 16+; HDR preview on iOS 17+; full HDR decode on iOS 18+ - Completely free, no ads, no in-app purchases

Instant HDR converts ordinary photos into real HDR JPEGs tuned for Instagram posting. Most HDR photo apps push a stronger effect before upload. But Instagram applies its own HDR processing, which can visibly alter the image after posting. Instant HDR is built around that behavior. Instead of chasing an exaggerated pre-upload preview, Instant HDR is tuned to preserve your photo’s intended look after Instagram upload, while still producing a bold HDR effect once the post goes live. Features: • One-tap HDR conversion • Tuned specifically for Instagram posting • Helps keep your SDR image stable after upload • Local on-device processing • Saves the converted HDR JPEG to your photo library • Optional subscription removes the export watermark Instant HDR is made for creators who want reliable HDR output — not a preview that falls apart after posting. Terms of Use: https://hdrguru.vercel.app/terms Privacy Policy: https://hdrguru.vercel.app/privacy