ThumbPops vs Mosaic

ThumbPops is a fast thumbnail maker for creators who want to know whether a design still works when it shrinks down in the feed. Pick a photo, add a punchy title, choose a format, and ThumbPops scores the thumbnail with Tap Test checks for readability, title length, contrast, brightness, face overlap, edge framing, text density, safe zones, and title/video overlap. Version 2.2 adds Subject Lift: on-device cutout, depth, outline, and backdrop so the person stays in front of the headline at scroll-by size. Version 2.1 adds Launch Pack: a platform-by-platform publishing checklist for YouTube-style wide thumbnails, vertical short-form covers, square feeds, podcast art, stories, and timeline images. Launch Pack shows the exact export size, a readiness score, blocker issues, and the next fix for each format before you export. What ThumbPops does: - import photos you choose from your library - cut the subject out on-device and compose depth (Subject Lift) - create wide, vertical, square, podcast, story, and timeline thumbnails - add a headline, subtitle, stickers, creator-style badges, and bold color looks - run Tap Test checks for readability, contrast, brightness, face overlap, and edge risk - use Launch Pack to QA every export format from one design - preview the thumbnail at real scroll-by sizes - auto-place text away from detected faces - use Pro Lab tools for focal placement, legibility, color harmony, templates, and safe zones - keep a brand kit and export score history on-device - export PNG thumbnails when you choose ThumbPops is not a social network and does not post for you. It is a creative utility for checking whether a thumbnail is clear and ready before you publish it. Privacy is simple: no account, no developer cloud, no analytics SDK, no advertising SDK, no tracking, and no data collected by the developer. Image analysis runs on device. ThumbPops is not affiliated with, endorsed by, or sponsored by any social platform.

Mosaic is a photo collage maker with nothing behind a paywall. Most collage apps show you a wall of beautiful designs and then lock the good ones. Mosaic ships everything it has, free: 1,360 layouts, 749 designs, 25 themed looks, every sticker, every typeface. No watermark, no subscription, no account. ONE DESIGN, UP TO TEN POSTS This is the part other apps charge for. Mosaic renders your design as one wide picture and cuts it at the very end, so the seams line up when somebody swipes your carousel. 225 of the designs are built for it: a sentence that runs out of one post and into the next, a week told a day at a time, one word broken across three squares. 749 DESIGNS, NONE OF THEM LOCKED A design places the photographs, the type and the artwork for you. Tap one and it lands. Torn paper and album corners, film frames on slate, menus, tickets, magazine covers, and a set cut for the 9:16 story. MAKE A COLLAGE IN SECONDS Pick up to 20 photos and Mosaic lays them out immediately. Tap Shuffle to re-deal until something clicks. Drag any photo onto another to swap the two. Drag the dividers to give a photo more room. TWENTY-FIVE THEMED LOOKS One tap sets the backdrop, frames, arrangement, artwork and caption together: Summer, Coast, Postcard, Cinema, Party, Noir, Bloom, Field Notes and more. Then change anything you like. A REAL PHOTO EDITOR Zoom, crop by dragging a corner, straighten a crooked horizon, rotate, mirror, and apply filters with adjustable strength. Lift a subject clean out of its background with one tap, and put it back with another. FREEFORM SCRAPBOOKS Switch to freeform and arrange photos by hand. Scatter, stack, fan or tidy them. Dress each one in a polaroid, border, postage stamp, film strip, torn edge or strips of tape. FINISH IT Captions in twelve typefaces, from clean sans to script and handwriting. Drawn stickers for every season, and plain shapes — circles, arches, stars, blocks of colour — to sit behind a photo or under a line of type. Set any photo, colour, gradient or paper texture as the background. Export square, 4:5, story, or any of eight sizes. YOUR PHOTOS STAY YOURS There is no account, no sign-up and no server. Mosaic has no analytics and collects nothing. Every project is saved on your device and never leaves it.