OpenCat vs AiWithApi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
AiWithApi
Access multiple leading AI models in a single, intuitive chat interface. Switch between providers and models in real-time, with flexible pay-per-use options. Enjoy local data storage for enhanced privacy and control over your AI interactions.
- Access to dozens of leading AI models
- Switch models in real-time
- Pay-per-use pricing
- Local data storage for privacy
- Modern and intuitive chat interface
- Full conversation history with search
- Smart memory for context
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AiWithApi is a powerful AI chat app that gives you access to dozens of leading AI models in one place. Switch between models and providers in real time, even in the middle of a conversation, and enjoy both free tiers like Gemini and OpenRouter as well as premium models from Google Gemini, OpenAI, and OpenRouter. Pay only for what you use with no monthly subscription required. All keys and data are stored locally on your device, giving you full control and privacy. The app features a modern and intuitive chat interface, full support for English and Hebrew, complete conversation history with search, smart memory for short- and long-term context, and customizable parameters for every model. AiWithApi is ideal for anyone seeking a smart, flexible, and cost-effective AI chat experience with total control over usage and costs. Terms: https://afek10.github.io/terms-page/terms_en.html
Screenshots
Verdict
The clearest difference is review sentiment: OpenCat at 65% against AiWithApi's 0%. OpenCat also leads on rating (4.6 vs 3.0) and update cadence (weekly vs every 7 months). AiWithApi's advantage is iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and monetization model 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. OpenCat sells 4 in-app purchases, starting at $3.99 per month and AiWithApi sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
OpenCat holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: OpenCat has 851 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 65% of OpenCat's written reviews are positive against 0% of AiWithApi's.
OpenCat ships an update weekly, AiWithApi every 7 months. The most recent releases landed on October 25, 2026 and October 20, 2026 respectively.
| Parameter | OpenCat | AiWithApi |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (851 ratings) — better | 3.0 (1 ratings) |
| Positive reviews | 64.6% of reviews — better | 0.0% of reviews |
| Number of ratings | 851 — better | 1 |
| Update frequency | Weekly — better | Every 7 months |
| 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, iPod |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 96 MB | 42 MB |
| Age rating | 17+ | 4+ |
| Developer | Early Moon, LLC | Afek Banyas |
Customer experience
OpenCat
AiWithApi
Bugs and requests
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
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- 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
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- Prompt library and sharing functionality
- Integration with other productivity apps (e.g., Shortcuts)
AiWithApi
Not enough reviews yet to summarise bugs or requests.
In-app purchases
OpenCat
- Cloud AI3 Days trial$3.991 Month
- Cloud AI$24.991 Year
- Tokens Package$5.99
- OpenCat Pro$9.99
AiWithApi
- Monthly plan$1.991 Month









