Perspective Lab vs SnapLine

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.

Lay a camera grid over your photo and place it with an eye for composition. Send the lines behind your subject and the grid steps into the scene. It stops being an overlay and becomes part of the photo. ■ The grid moves into the photo • Rule-of-thirds grid to start from • Middle points that bend each line • End anchors that tilt each line • Extra bend points and rounded curves • Erasing where a line crosses your subject • Auto mask to find your subject ■ Fine work • Zoom up to 8× • Fine brush size control • Loupe under your fingertip • Undo and redo Saves at the full resolution of your original. Exports carry a small SnapLine mark in the corner, and SnapLine Pro removes it. ■ SnapLine Pro advanced features • Saving without the mark • Dashed, double, and glow line styles • Line colors beyond white and black • Snapping to subject corners ■ Privacy • No personal data collected • No sign-up or login Open a photo and let the grid into the scene.