Support

Lensgrade scores photo sharpness on device, diagnoses why a frame is soft, shows full EXIF data, adds subject focus, exposure, and a camera-shake check, ranks bursts, and keeps a searchable score history with library stats.

Common questions

• Does Lensgrade grade my lens or camera? No. It analyzes the high-frequency detail of a delivered photo. It does not measure a lens's or camera's optical quality, and it never changes your photos.
• What is the Shot Diagnosis? After scoring, Lensgrade synthesizes the available signals — shutter speed vs the reciprocal-rule threshold, focus map position, exposure state — into a plain-English diagnosis of the most likely cause of softness (camera shake, focus miss, or extreme exposure) and a one-sentence tip to fix it.
• Why does a sharp photo on a plain background sometimes score low overall? A whole-frame measure is fooled by smooth backgrounds. Lensgrade also reports a subject score from the face or center region, which is the number to trust in that case.
• What is the shake check? Lensgrade reads focal length and shutter speed from the photo's EXIF, applies the reciprocal rule, and shows the actual shutter vs the safe threshold in stops (e.g. "1.5 stops too slow"). If a photo has no EXIF, the shake result is simply marked unknown.
• What EXIF data does Lensgrade show? Focal length, 35mm-equivalent focal length, shutter speed as a clean fraction (e.g. 1/250 s), aperture (f-number), and ISO — displayed on every scored photo that carries metadata.
• What are the Library Stats in History? A summary panel at the top of History shows your overall keep rate, average composite score, and a bar showing how your scores are distributed across star bands. It updates automatically as you score more photos.
• Do my photos leave my device? No. All analysis runs locally and nothing is uploaded.
• Why does the app ask for Photos access? Read-only, so you can select photos, see thumbnails of ones you scored, and read camera settings for the shake check.
• How do I export results? Open a batch or your history and tap the share icon to export a CSV, then share or save it yourself.
• Is there an account or subscription? No. Lensgrade has no login, no ads, no tracking, and no in-app purchases.

Contact support

Email the App Store product page with your device model, iOS version, and a short description of the issue.