Rendrl vs Mosaic
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rendrl
Create stunning Instagram carousels, collages, and story covers with this powerful photo editing tool. It offers advanced features like layer control, cinematic color grading, and customizable typography, all while processing images locally for privacy.
- Seamless Instagram carousels up to 20 slides
- Cinematic photo collage maker with layer control
- Stories and Reels cover designer
- Pro color grading with manual controls
- Cinematic typography with 30+ fonts
- Local photo processing for privacy
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Export every slide at full resolution, never watermarked - free to use, with an optional Premium upgrade. Build seamless Instagram carousels that flow slide to slide, cinematic photo collages, and Stories or Reels covers, all in one editor. SEAMLESS CAROUSELS Multi-slide posts that flow perfectly from slide to slide - up to 20 slides, each with its own background. The panorama swipe view shows exactly how your post will look as people swipe through it. Built for photo dumps, travel diaries, OOTD lookbooks, step-by-step guides and product showcases. CINEMATIC COLLAGES A full canvas editor with layer control over photos, text, stickers, frames and grids on an infinite canvas. Pinch to zoom, rotate, and edit non-destructively - nothing is ever flattened. STORIES & REELS COVERS Design covers and thumbnails that match your feed, so your aesthetic stays consistent across every format. TYPOGRAPHY THAT STAYS SHARP 30+ fonts with stroke, drop shadow, glow, letter spacing, curved text paths and case modes. Text renders losslessly at export resolution — no soft edges, no rasterised blur. BACKGROUND REMOVAL Cut any subject out in one tap and drop it onto a new background, a colour, or a layered collage. COLOR GRADING One-tap cinematic looks, plus manual control over brightness, contrast, saturation, warmth and tone. LAYERS, STICKERS & FRAMES A complete layer stack with control. Lock, reorder, duplicate or delete - every element stays independently editable. EXPORT YOUR WAY Every slide saves at full resolution straight to your photo library, and layouts can become moving video. - Instagram 4:5 — 1080x1350 - Square 1:1 — 1080x1080 - Reels & TikTok 9:16 — 1080x1920 - Stories 9:16 — 1080x1920 - Pinterest 2:3 — 1000x1500 - Landscape, Classic and Cinematic HOW IT'S FREE Rendrl is free to use. Watch a short rewarded ad when you choose to earn a Render Core, and spend one to export. Cores are only deducted after a save completes successfully - a failed export never costs you anything. RENDRL PREMIUM (OPTIONAL) Go Premium to export instantly with no Render Cores and no rewarded ads, and to remove all banner ads. Choose Premium Weekly or Premium Annual. - Payment is charged to your Apple ID at confirmation of purchase. - Your subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the end of the current period. - Manage or cancel any time in your Apple ID account settings. - Prices are shown in the app and may vary by country or region. PRIVACY FIRST All processing happens on your device. Rendrl never uploads or stores your photos on a server. Sign in with Apple or Google. Privacy Policy: https://devbynight.com/rendrl/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms of Service: https://devbynight.com/rendrl/terms Contact: rendrlapp@gmail.com
Mosaic
Create stunning photo collages with a vast library of free layouts and themed looks. Easily arrange, edit, and customize your photos with a real photo editor and a variety of artistic finishing touches. Your creations are saved locally, ensuring your privacy.
- Over a thousand free collage layouts
- Thirteen themed looks
- Real photo editing tools
- Freeform scrapbooking mode
- Add captions and stickers
- Multiple export sizes
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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.
Screenshots
Verdict
The clearest difference is rating: Mosaic at 5.0 against Rendrl's 4.5. Mosaic also leads on in-app purchases (none vs 2) and ads (none vs shown). On price, ratings volume, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Rendrl sells 2 in-app purchases, starting at $4.99 per 7 days. Mosaic asks for nothing beyond the download.
Mosaic holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 4 and 4 respectively.
Rendrl ships an update every 10 days, Mosaic every 3 days. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.
| Parameter | Rendrl | Mosaic |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (4 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 | 4 |
| Update frequency | Every 10 days | Every 3 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 147 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Rizwan Mohiuddin Mohammed | Aryaman Ravi |
Customer experience
Rendrl
Mosaic
In-app purchases
Rendrl
- Premium Weekly$4.997 Days
- Premium Annual$44.991 Year
Mosaic
No in-app purchases









