OpenCat vs Numline

Bring AI into every part of your workflow: chat, writing, translation, and search. · Multiple model options — local models, API Key, Cloud subscription, Apple Intelligence · MCP — supports MCP and tool calls · Web search — available on OpenCat Cloud and select providers · System-wide translation — select text in any app for instant AI translation · Content rendering — supports LaTeX formulas, Markdown, and code highlighting · Cross-platform — natively built for Mac, iPhone, and iPad · Data privacy — stored locally, synced across devices via iCloud [Pro Features] · AI Keyboard — invoke AI right in the text field of any app to polish or reply in one step · OpenCat Cloud subscription provides access to all major models [A Variety of Models] · OpenCat Cloud — fast access to leading models · Local models — one-tap download of open-source models for offline use, accelerated by Apple silicon · BYOK — use your own API Key, including Coding Plan · System models — supports Apple Foundation Models [OpenCat Cloud — Ready to Use, No Setup] · No sign-up, zero configuration, all major models supported · 50+ models — ChatGPT, Claude, Gemini, Grok, DeepSeek, GLM, MiniMax, Kimi, Qwen, Doubao, and more, all in one place · Online search supported [System-Level AI Translation] Set OpenCat as your default translation app to translate selected text directly in Safari, Mail, Notes, and any other app. Powered by large language models, translations are natural and fluent — far superior to traditional translation engines. [Local Models, Offline Inference] · One-tap download — popular open-source models like Llama, Qwen, and Gemma · Apple silicon acceleration — built on Apple's official MLX framework, fully leveraging GPU performance for fast, energy-efficient inference · Fully offline — works without internet, conversation data never leaves your device [Use Your Own API Key] · 25+ providers supported — OpenAI, Claude, Gemini, DeepSeek, Kimi, Qwen, Doubao, ERNIE, and more [Contact Us] Email: support@dreamoon.ai Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy & Third-party AI Service Privacy Policy https://opencat.app/privacy

Numline is a calculator you type into like a notepad. Write your maths in plain words on the left, and answers appear instantly on the right. No buttons to hunt for. No equals key. Just type a line, like "120 USD to EUR", "20% of 4800" or "rent = 2400", and Numline works it out as you go. What you can do • Plain-language maths: write "95 EUR * 4" and read the answer beside it • Currencies: convert between world currencies, like "cost in JPY to USD". Rates update automatically; offline, the last ones stand in and results are approximate • Units: length, mass, volume, temperature and more, like "120 km to miles", "356 F to C" • Percentages: tips, discounts and splits in words, like "89 + 15%", "240 / 4 + 10%" • Variables: name a value once and reuse it, like "rate = 85", "32 * rate" • Totals: "total" sums the block above; a blank line starts a fresh one • Dates: "trip - today", "trip + 2 weeks" and other quick date maths • Functions: sqrt, round, abs and friends when you need them • Shorthand: "19k + 80k" reads thousands the way you say them • Themes: Classic, Lime, Violet and Amber, each colouring your notation its own way • Many notepads: keep a separate sheet for every plan, and search them by title or content Every line is live. Change a number and everything below it updates. It reads back like a note you wrote to yourself, so you can always see how you reached an answer. On the Mac, Numline opens on your last notepad, ready to type, with a menu bar and keyboard shortcuts. Each device keeps its own notepads. Numline stays quiet and focused: a dark editor, syntax colours you choose, and nothing in your way. No account. No subscription. No ads. Your notepads stay on your device. Just type.