This app helps you quickly solve for an unknown value in a proportion. Simply input three known numbers, and it will calculate the fourth, making ratio and proportion calculations effortless.



211+ iOS apps curated and reviewed
From beginner-friendly picks to power-user tools, our aspect ratio pro list covers 211+ iPhone apps updated through July 2026. Compare ratings, prices, and screenshots in one place.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | $3.99 | 4.0★ (1) | No | No | Jul 2026 | |
| 2 | Free | 3.3★ (4) | No | No | May 2026 | |
| 3 | Free | 4.4★ (31K) | Yes | Yes | Aug 2026 | |
| 4 | Free | — | No | No | May 2026 | |
| 5 | Free | 5.0★ (3) | No | No | May 2026 | |
| 6 | Free | 4.5★ (23) | Yes | Yes | Aug 2026 | |
| 7 | Free | 4.4★ (1.8K) | No | Yes | Aug 2026 | |
| 8 | Free | 3.0★ (7) | No | No | May 2026 |



This app helps you quickly solve for an unknown value in a proportion. Simply input three known numbers, and it will calculate the fourth, making ratio and proportion calculations effortless.


Easily calculate any ratio for design projects. Input a base ratio and either width or height to automatically determine the other dimension. Offers dark and light themes for usability in any lighting.




Easily crop and resize videos to fit any platform or social media requirement. Choose from popular aspect ratios or customize freely for perfect framing. Export your edited videos in high quality.


Easily calculate aspect ratios for images and videos. Supports input formats like width x height or x:y ratios. A simple tool for content creators and designers.


This utility calculates unknown values in aspect ratios, useful for resizing images and clipping. It simplifies the process of determining proportional dimensions for various visual applications.


Easily resize and crop your photos with custom aspect ratios on your iPhone or iPad. Select multiple images for quick batch editing, or add color margins to fill empty spaces. Ideal for social media, printing, and creative projects.


This app provides advanced video recording capabilities for mobile devices, offering professional-level control over video, audio, and color settings. It supports high-end codecs, manual adjustments, and external accessories, transforming your device into a production-ready camera for creators of all levels.


This Safari extension corrects distorted videos on websites by allowing you to select a valid aspect ratio. It ensures videos automatically fit the screen and are viewable in both portrait and landscape modes.


This app offers professional-grade photo and video capture with extensive manual controls and advanced editing tools. It leverages computational photography to unlock your device's camera potential, supporting RAW formats and high-resolution video recording.


This app transforms your mobile device into a professional cinema camera, offering advanced controls for video capture. It provides filmmakers, content creators, and educators with intuitive tools to achieve high-quality video results.


Easily adjust the aspect ratio of your photos with this powerful editor. Batch edit multiple images, choose from various background styles, and utilize precise layout tools. Perfect for preparing content for social media.


Easily create engaging videos from your favorite shots with automatic editing and a range of premium tools. Backed up to the cloud, your footage is accessible and editable anywhere, anytime.


Quickly calculate missing dimensions for layouts and designs based on various aspect ratios. Features presets like the golden ratio, custom inputs, and a live visual preview. Automatically copies results to your clipboard.


Take professional-quality videos with advanced manual controls for exposure, focus, and color. Seamlessly connect multiple devices for multicam recording and sync directly with editing software.


This app offers professional cinema camera features for mobile devices, enabling advanced video recording and monitoring. It includes features like Wi-Fi video transmission, multiple recording modes, and sophisticated color grading tools.


Create professional-quality cinemagraphs, a unique blend of still images and subtle motion, with this powerful mobile editing tool. Easily capture or import footage, use magical live masking, and refine your creations with advanced editing options for stunning visual storytelling.


This app offers advanced manual controls for photography and videography, allowing users to capture professional-quality images and footage. It includes a powerful editing suite and detailed metadata viewing, with options for custom sharing and privacy.


This app transforms your smartphone into a professional DSLR camera, offering manual controls, AI-powered features, and instant color grading for stunning photos and cinematic videos. It includes advanced editing tools, creative effects like motion blur and bokeh, and AI-driven headshot creation.


Control Final Cut Pro X on your Mac from your iPad or iPhone. Streamline editing tasks with a clean interface, offering direct access to all FCPX tools from import to export. Features include precision timeline scrubbing, color grading, and quick clip manipulation.


Create 3D storyboards on your iPad or iPhone with intuitive gestures. Visualize shots and scenes in real-time 2D and 3D views, import scripts, and export professional storyboards. Perfect for filmmakers and video creators.