LanguagePro vs OpenCat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LanguagePro
This AI-powered assistant helps you write better and faster with features like content generation, grammar correction, and translation. It can also assist with creative writing, email replies, and social media posts.
- AI content generation
- Grammar and tone improvement
- Multi-language translation
- Email and message replies
- Creative writing assistance
- Social media caption generation
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LanguagePro: AI Assistant - AI Drawing and AI Writer LanguagePro is a powerful AI-based writing and drawing assistant that helps you write better, faster, and more efficiently. It is an AI-powered writing tool that helps you create perfect, error-free content. AI Writer can analyze your writing style, suggest better words and phrases, and even detect errors and typos.With LanguagePro, you'll have the entire universe of human knowledge in your pocket. Here are some ways you can use with LanguagePro Chat Bot: 1) CREATIVE WRITING: Generate creative writing for you, such as articles, essays, emails, messages and outlines on any topic. Simply describe what you'd like the AI chatbot to write -- "an essay outline on Macbeth", "a report about increasing sales" -- and LanguagePro will produce perfect AI generated text in the format of your choice from a short paragraph to a detailed essay outline and essay. Adjust tone and voice to fine-tune your AI text. 2) REPLY: to emails, messages & chat instantly. Copy & Paste any email or comment and get an immediate AI reply in your desired tone. Save time responding to emails, leave it to LanguagePro. 3) IMPROVE: the grammar and tone of any text. LanguagePro will correct or rewrite rough drafts and outlines with professional spelling, grammar, and vocabulary. Interpret the tone of your writing to ensure you are conveying what you wish to say with AI sentiment analysis. 4) TRANSLATE: over 25+ languages with our multi-lingual keyboard to generate AI content for complex translation including multilingual live chat, website translation, email & more. A must have for English as a Second Language ("ESL") and ("TEFL") users. Natural Language Processing ("NLP") can perfectly translate nearly any language including: Mandarin, English, Spanish, Arabic, French, German, Portuguese, Italian, Urdu, Korean, Hindi, Japanese, Vietnamese and Tagalog. (use the prompt "output in *language*") 5) GENERAL KNOWLEDGE: Answer any general knowledge question you have 6) TWEETS/INSTAGRAM: Craft the perfect tweet or Instagram caption for you given a description of what you want to say 7) ANYTHING ELSE: The sky is the limit. Advanced AI Model, which powers LanguagePro Chat Bot is the world's most powerful AI Chat assistant, and adapts to give you the best possible answer to any question you have Who It Benefits: If you are a user of Quillbot, Grammarly, Wordtune, Jasper AI, Copy.AI, Rytr, Ginger, AI Writer, Writesonic, Anyword, or Hyperwrite you must try LanguagePro! *PROFESSIONALS* can write and reply to emails, messages, reports, & more with our native keyboard instantly with perfect grammar. Paragraph will check grammar & fix mistakes instantly. From AI writing for sales & marketing to customer service & operations, every professional will see the quality, impact and speed of their writing improve with our AI writing assistant. *STUDENTS* can use this AI writer improve their work, learn more about the world, brainstorm and collaborate with a world-class AI writing tool and get instant feedback. *ORGANIZATIONS* can empower their people to work more productively & improve all internal & external written communications. Grammatical errors and unintended tones can cost organizations valuable relationships. Ensure your organization is always presented professionally and in the best light with your new AI writer, LanguagePro. Feel free to contact LanguagePro: languageproapp@gmail.com Terms & Conditions: https://languagepro.app/term.html Privacy Policy: https://languagepro.app/privacy.html
OpenCat
This AI utility tool offers seamless integration of advanced AI models into your daily routine on Mac, iPhone, and iPad. It features a user-friendly interface, keyboard extensions for in-app AI access, and Siri/shortcut integration for automation. Supports a wide range of popular AI models and offers team deployment options.
- Support for latest popular AI models
- Keyboard extensions for in-app AI
- Realistic voice synthesis
- Siri and shortcut integration
- Team deployment with Docker
- Customizable AI parameters
- Markdown content rendering
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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
Screenshots
Verdict
LanguagePro and OpenCat both sit at 4.4 stars, but that hides the real split: 86% of LanguagePro's written reviews are positive against 65% of OpenCat's. OpenCat's advantage is ratings volume (851 vs 77). On price, rating, update cadence and ads 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. LanguagePro sells 4 in-app purchases, starting at $9.99 per month and OpenCat sells 4 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
OpenCat holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: OpenCat has 851 ratings behind it against 77, so its average is the more settled of the two. Written reviews complicate that: 86% of LanguagePro's written reviews are positive against 65% of OpenCat's, so the app with the better star average is not the one people write more warmly about.
LanguagePro ships an update every 4 days, OpenCat weekly. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.
| Parameter | LanguagePro | OpenCat |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (77 ratings) | 4.6 (851 ratings) — better |
| Positive reviews | 86.4% of reviews — better | 64.6% of reviews |
| Number of ratings | 77 | 851 — better |
| Update frequency | Every 4 days — better | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Mac |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 36 MB | 96 MB |
| Age rating | 17+ | 17+ |
| Developer | 纯俊 叶 | Early Moon, LLC |
Customer experience
LanguagePro
OpenCat
User reviews
LanguagePro
From 77 App Store ratingsWhat we love
- 👍 Powerful AI capabilities
- 🚀 Fast response times
- 💡 Versatile AI tool
- 👍 Good Chinese support
- 👍 High quality generation
Room to improve
- 🐛 Basic Q&A not working
- 🐛 Seems unmaintained
- 🐛 Mac version not updated
- 🐛 Limited free trial
- 🐛 Charges quickly
OpenCat
From 851 App Store ratingsWhat we love
- 🚀 Fast and responsive
- 👍 Convenient and user-friendly
- 💡 Customizable API integrations
- 🌐 Syncs across devices
- 🎨 Clean and visually appealing design
Room to improve
- 🐛 Bugs and performance issues
- 🔒 Lack of custom API support
- 💻 Compatibility issues with older devices/OSes
- 🗂️ Difficulty managing conversations
- 📤 Inability to export chat data
Bugs and requests
LanguagePro
Reported bugs
3 issues- Basic Q&A function fails
- GPT-4 not usable after payment
- Mac version not updated
Requested features
2 requests- More free trials
- Continued development for Mac version
OpenCat
Reported bugs
6 issues- Streaming response disruptions
- Disappearing API key input fields
- Inconsistent Markdown rendering
- Keyboard extension not working as expected
- Sync issues between devices
Show 1 moreShow fewer
- Crashes and freezes when handling large inputs
Requested features
7 requests- Support for more AI models (e.g., Ollama, Groq)
- Markdown rendering for chat responses
- Ability to upload images and files
- Customizable keyboard extensions
- Background task support for long-running queries
Show 2 moreShow fewer
- Prompt library and sharing functionality
- Integration with other productivity apps (e.g., Shortcuts)
In-app purchases
LanguagePro
- Premium Version3 Days trial$9.991 Month
- Premium Version3 Days trial$12.991 Month
- Lifetime Premium Version$59.99
- Lifetime Premium Plus Version$199.99
OpenCat
- Cloud AI3 Days trial$3.991 Month
- Cloud AI$24.991 Year
- Tokens Package$5.99
- OpenCat Pro$9.99









