Chama Optics vs Margin

Chama Optics — Edit your photos on the spot: color grade, frame, and mosaic faces, all in one app. A photo post-processing app for mirrorless and DSLR camera users. It offers EXIF-based shooting info frames, automatic face mosaic, color grading, and cheki (Polaroid-style) frames. ◆ Made for you if... Events, travel, & street photography — Weddings, tourist spots, and more — whenever you need to mosaic other people's faces. Sharing photos on social media — Post fan activity photos, memories with friends, or event highlights on SNS. DSLR/mirrorless users & gear reviewers — When sharing your shots with shooting info (camera, lens, aperture, etc.) embedded in the frame. ◆ Face Detection & Privacy Protection • On-device automatic face detection • Apply mosaic or sticker to detected faces • Manually add, delete, or adjust detection areas ◆ LUT Color Grading • Apply professional LUT filters (.cube format) • Fine-tune exposure, contrast, highlights, shadows, clarity, saturation, and more • Apply LUT individually or in batch ◆ Cheki (Polaroid-Style) Frames • Polaroid-style borders — adjustable width, color, bottom margin, and text (or EXIF) • Play Dice! for random sticker placement, or place them freely ◆ EXIF-Based Shooting Info Frames • Multiple built-in frame themes • Auto-display camera, lens, focal length, aperture, shutter speed, and ISO • Verbose EXIF to view full metadata including maker notes ◆ Batch Processing & Export • Edit multiple photos at once with batch apply — export as JPEG, PNG, or WebP • Fine-tune quality and scaling modes (max width/height, longside, and more) ◆ Privacy First All image processing is performed entirely on-device. No cloud uploads, no external AI models — your photos never leave your device. Inspired by the travel VTuber Akai Haato, who loves photography.

Margin adds clean white or black borders to your photos. That's it. No ads — not on screen, and never when you save. ■ Made for 4:5 posts Add a clean border in one tap at 4:5, the size that fills the most space in the feed. 1:1, 9:16 (Stories), and the original ratio are available too. ■ Same margins across your carousel (Pro) Load up to 20 photos at once and save or share them all with identical margins. ■ Margins in 0.1% steps Fine-tune the border with the slider or the +/− buttons. Save your favorite settings and get the same look every time. ■ Place your photo exactly Drag to move, pinch to zoom. Fit Width and Fit Height are just one tap away. ■ White or black Choose the border color that suits your photo. ■ Full resolution Your photos are saved without losing quality, and you can share them straight to Instagram and other apps. ■ Margin Pro (one-time purchase) ・Batch edit up to 20 photos with the same margins ・Frame colors suggested from your photo, or pick any color you like Buy once, keep it forever. No subscription. ■ Privacy Everything happens on your iPhone. Your photos are never uploaded.