Perspective Lab vs simpleGRID

Perspective Lab is a geometry correction app that does not let AI change the content of your photos. Fix distortion, not your photo. Correct tilt, perspective, and keystone distortion in architecture, interiors, documents, artwork, and more—only as much as you choose. Processing stays on your device, and your original photo is never overwritten. Features • Smart Auto: Applies a natural correction only when the result is reliable • Quick Level: Straighten a photo in seconds • Manual controls: Fine-tune tilt, verticals, horizontals, aspect ratio, and scale • Guides: Place reference lines to correct buildings, horizons, and other straight edges • Press and hold to compare before and after • Save at original resolution • Privacy-focused: Photos are processed on your device and originals remain unchanged Try Pro features free for 7 days. The trial does not renew automatically.

simpleGRID lays a grid of perfect squares over any photo. Use it to draw and paint with the classic grid method, or split the photo into equal tiles, then save the result as one image or as separate photos. FOR ARTISTS Drawing or painting from a reference? Put a grid over the photo, draw the same grid on paper or canvas and copy the picture square by square, so the proportions stay right. It works for sketches, paintings, murals and learning to draw. Keep the gridded photo on your iPhone next to your work, or print it. FOR SOCIAL MEDIA Split one photo into equal tiles and post them in order to build a seamless mosaic on your profile, or a carousel that people swipe through. AND MORE Print a big picture across several sheets, make a photo puzzle, plan a cross-stitch, quilt or tile pattern, or prepare a lesson for an art class. HOW IT WORKS • Grid: choose 1 to 40 columns and rows. With Fit to photo on, the grid is always as large as your photo allows. Drag the grid to choose what stays in the frame, or drag a corner to set the size yourself. • Lines: set the thickness, opacity and color (white, black or any color, down to the exact hex code) and add a frame around the edge if you like. • Save: one image with the grid drawn on it, or every tile as its own photo, row by row from the top left. Choose JPEG, HEIC or PNG, then save to Photos or share with AirDrop, Messages and Files. PRIVATE BY DESIGN • No account, no internet, no ads, no tracking. • You pick a photo in the system picker, so the app sees only that photo, never your library. • Location data is always removed from saved files. • Projects save automatically and stay on your iPhone. Light and dark themes. Available in English, Polish, German, Italian, Spanish and French.