Test regular expressions by entering a pattern and source text. Highlights matching text in real time. Allows editing of both the regex and input text. Provides immediate visual feedback on matches.
by Yichen Cao★ 4.01 ratingsProductivityFreeData updated 2026-09-09
Measure ambient noise levels and display readings. Show detection location and time. Export audio recordings for sharing. Provide reference data for noise level awareness. Not a substitute for professional equipment.
Check text for spelling and errors in multiple languages. Correct mistakes instantly. Highlight errors and suggest alternatives. Save and share edited text directly. Learn common rules and vocabulary tips.
Create personalized labels by adding text, images, symbols, borders, expressions, graffiti, and two-dimensional codes. Choose from templates in the template center. Connect to a label printer via Bluetooth for editing and printing.
Allows users to generate text, solve problems, and automate tasks using AI. It supports custom prompts, equation solving, and task automation. Users can set preferences, receive assistance with writing, and manage routine activities efficiently.
Create and send text-based expressions using ASCII art and kaomoji characters. Browse a collection of hand-picked designs for messaging. Search for specific characters quickly. Save favorites for easy access.
Provides a keypad for entering digits in apps that lack a . Users can input phone numbers, credit card details, and other numeric information efficiently. The functions as a standalone input method for numeric data entry.
Enter and edit equations in mathematical notation. Visualize 2D and 3D graphs of explicit, implicit, and inequality equations. Adjust settings for display and analysis. Save and share calculations.
Save images, notes, articles, products, text highlights, recipes, movies, or bookmarks with a single tap. Organize content without filing, labeling, or tagging. View content in a visual, organized format. Share content via the share sheet.
Record audio, transcribe, summarize, and manage tasks
Record audio and transcribe it into text. Summarize content with AI. Create and manage to-do lists. Optimize text for clarity and style. Organize with voice, text, and image inputs. Share across devices.
Allows users to ask factual, educational, or general knowledge questions. It provides text responses in real time via input. Users can request writing help, summaries, or task suggestions.
Write with AI, translate instantly, polish grammar
Offers real-time grammar corrections, style suggestions, and instant translation between languages. Users can switch between languages, predict text input, and refine messages for clarity and fluency.
Perform complex calculations with trigonometric, statistical, and combinatorial functions. Define and evaluate custom equations. Graph mathematical expressions and explore multiple variables. Save and reuse calculations for future use.
And analyze HTML, XML, JavaScript, CSS, JSON, RSS, and ATOM code. Support for iPhone, iPad, and Mac devices. Browse code with intuitive navigation. Edit and format code directly. Save and export code files. Sync code across devices.
Text and speech between 100+ languages. Use instant voice translation for real-time conversations. Scan and text from images. Share translated content via messenger.
Create presentations by describing topics, generating slides with visuals and structured content. Edit documents with AI-powered suggestions. Organize tasks with intelligent scheduling. Convert text to speech and vice versa.
Learn with comprehensive vocabulary, including over 700,000 words and 1 million example sentences. Access pronunciation for words and sentences. Study grammatical points, tense modes, verb prepositions, plural forms, and articles.
Solve mathematical problems with fraction, decimal, and equation input. Display results in decimal, rational, , or trigonometric formats. Support up to 16 decimal places for precise calculations.
Store, view, and manage files on iOS devices without a Mac or PC. Transfer files wirelessly and backup contacts. Access a document viewer, file manager, voice recorder, and text editor. Perform operations like delete, move, copy, and email files.