44+ iOS apps curated and reviewed
Finding the right catalystwo apps can be overwhelming with so many options. We've analyzed 44+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 3.1★ (34) | Yes | Yes | Aug 2026 |
| 2 |  | Free | 4.7★ (577) | Yes | Yes | Aug 2026 |
| 3 |  | Free | 3.7★ (6) | Yes | Yes | Aug 2026 |
| 4 |  | Free | 3.1★ (13) | Yes | Yes | Aug 2026 |
| 5 |  | $3.99 | 4.0★ (96) | No | No | Aug 2026 |
| 6 |  | Free | 4.0★ (5) | Yes | No | Aug 2026 |
| 7 |  | Free | — | No | No | Aug 2026 |
| 8 |  | $3.99 | 4.7★ (86) | No | No | Aug 2026 |
This app provides an unlimited digital canvas for doodling, sketching, drawing, and note-taking. It offers various pen sizes, colors, editing tools like cut and paste, and export options to multiple platforms. Work is automatically saved for easy continuation.
An intelligent calendar app for efficiently managing your schedule. Easily create, modify, and organize events with drag-and-drop functionality, customizable colors, and support for international time zones. Offers undo/redo and copy/paste features for seamless event management.
Create handwritten notes, personalized emails, and social media posts with this versatile app. It offers extensive customization for pens, backgrounds, and fonts, and integrates with cloud services for easy sharing and organization.
This app is a music player designed for language learners and students of study material. It offers features like A-B repeat playback, adjustable speed, and clip saving to aid in comprehension and practice. Easily share audio clips with others for collaborative learning.
Effortlessly convert your handwritten notes into typed text across any application. This keyboard works offline, supports Apple Pencil, and offers customizable input settings for a seamless user experience.
Instantly look up words from your iOS Home Screen without opening the app. Get definitions in seconds to aid studying, reading, or satisfying curiosity, keeping you focused and learning.
This app helps memorize hierarchical or ordered information, which traditional flashcards struggle with. It's a useful and fun tool for students of any subject to train their memory.
An intelligent and elegant calendar app designed for efficient schedule management on iOS devices. It offers intuitive drag-and-drop event manipulation, customizable backgrounds, and support for over 400 international time zones.
This app allows users to communicate by writing on a screen, which is then spoken aloud. It's useful for individuals with speech difficulties or those learning English or Japanese, offering handwriting recognition, text typing, and a dictionary.
Create handwritten notes, personalized emails, and social media posts with this versatile app. It offers extensive customization for pens, backgrounds, and fonts, and allows easy sharing to cloud services and social media.
This utility allows you to use your iPhone as a wireless keyboard for your Mac. Simply type on your iPhone and send the text directly to any application on your Mac, leveraging your local network for seamless input.
Create a personalized photo gallery on your iPhone by selecting frames and wallpapers. Arrange your favorite images and enjoy your memories with this simple photo organization tool.
This application offers a realistic 3D analog watch experience, displaying the date and day of the week. Users can interact with the clockwork mechanism, zoom in and out, and even dismantle the watch to explore its inner workings. Adjust animation speed and display options for a personalized view.
This app implements a spaced repetition system using flashcards to aid memorization. Users can add new cards, review them at increasing intervals, and move them between compartments based on recall success. It offers features like Dropbox synchronization, night mode, and audio pronunciation.
Quickly create and display notes directly in your device's notification center. Access your important reminders and thoughts anytime without opening the app.
This app serves as a comprehensive catalog for catalytic converters, allowing users to buy, sell, and determine their real-time value based on precious metal content. It features a vast database with detailed specifications and photographs to aid in identification and valuation.
Create digital flashcards to memorize information, organize notes, and store images. Arrange your cards on a virtual desktop for a clear overview. Ideal for studying, planning, or keeping track of important details.
Access a comprehensive database of over 10,000 catalytic converter codes, complete with current market prices and images. Search by serial number or browse by manufacturer to find detailed information and maximize your scrap value.
Access a comprehensive database of over 16,000 catalytic converter types. This app aims to bring transparency to the used catalyst market, simplifying sales and connecting users with a global network of agents for efficient service.