Zone System vs SnapSlim

Zone System is a practical tool for applying Ansel Adams’ exposure and development method. • Measure shadows and highlights to set exposure • Get aperture and development (N, N+, N–) calculations • Preview results with film stock presets • Get calculations for aperture, shutter speed, ISO, and EV This app makes the Zone System simpler, faster, and more reliable.

SnapSlim is the all-in-one compressor that shrinks your photos, videos and PDFs — and creates or extracts ZIP archives. Everything runs on your device: no uploads, no servers, 100% private. PHOTO COMPRESSION • Compress single photos or up to hundreds in bulk • Adjust quality with a live before/after preview • Resize with presets for social media and web • Convert between JPG, PNG and WebP VIDEO COMPRESSION • Shrink videos to a fraction of their size with H.264 + AAC • Three quality levels with estimated output size • Progress bar and cancel support for long videos • Rotation and orientation always preserved PDF COMPRESSION • Reduce scanned and image-heavy PDFs dramatically • Original page dimensions preserved — no added margins • Detects already-optimized files instead of inflating them ZIP TOOLS • Bundle photos, videos and documents into one ZIP • Open ZIP archives and extract all or selected files • Save extracted media straight to your gallery PRIVATE BY DESIGN • Works completely offline — files never leave your device • No account, no sign-up Free plan includes 5 operations per day. SnapSlim Premium unlocks unlimited photo, video, PDF and ZIP operations, unlimited bulk size, all formats and presets, and removes ads. Available in 12 languages: English, Turkish, German, Spanish, French, Portuguese, Italian, Russian, Arabic, Japanese, Korean and Chinese.