Cortex | Online & Offline AI
Core of Artifical Intelligence
Free · In‑App Purchases
Access hundreds of AI models from a single platform. Experience offline AI, talk to characters, create your own assistants, and do much more directly on your device!
Step into the future of artificial intelligence. Cortex is more than just an app; it's a tool that places the power of cutting-edge AI in your pocket, designed for absolute performance. Control your data, customize your experience, and access AI wherever you are.
Dual AI Modes: Power Meets Privacy
Choose how you want to interact. Cortex offers two distinct modes to fit your needs. Enjoy the freedom of running AI models directly on your device with our 100% private Offline Mode, or unleash the limitless potential of cloud-powered models with our Online Mode.
True Customization: Your Cortex, Your Style
Go beyond standard light and dark modes and personalize your interface with a rich library of unique themes. Match Cortex to your mood, your wallpaper, or your style, creating an experience that's not just powerful, but also beautiful to use.
Your Personal AI Lab: Create & Upload Models
Build a new AI assistant by defining its personality and knowledge, or upload an existing model in the GGUF format. Create a unique character, or a specialized expert—all with full control and no technical expertise required. To ensure a safe and respectful community, all user-created and uploaded models are subject to an automatic moderation review to ensure they comply with our content policies.
Engaging AI Characters: Go Beyond Chat
Engage with a diverse and growing cast of AI characters, each with a unique personality and purpose. Get help from a lawyer, learn with a teacher, or just have fun with creative personalities.
Built on Trust: Open & Transparent
Your trust is our priority. Cortex is proudly open-source under the Apache License 2.0, meaning you can review our code on GitHub to see exactly how your data is handled. We believe in community-driven innovation and absolute transparency.
Flexible Membership Tiers
Cortex is designed to be accessible to everyone.
- Free Tier: Get started and explore our online models with free daily credits.
- Plus, Pro, & Ultra Tiers: Unlock the full, unrestricted potential of Cortex. This includes, but is not limited to, more credits, the ability to create and upload your own AI models, access to an expanded library of premium themes, and other exclusive features as they are released. Cancel anytime, no strings attached.
Why Choose Cortex?
• AI, Anywhere: Use AI with or without an internet connection.
• Privacy-First Design: You are in control of your data, always.
• Unmatched Personalization: From visual themes to creating your own AI, make it uniquely yours.
• Open-Source & Transparent: A project built on trust and community.
• Clean & Modern Interface: Powerful features in a simple, fast package.
Ready to redefine your relationship with AI?
Download Cortex today and join the revolution.
Important Notes:
- Cortex is in active development. While we are constantly improving the app with your feedback, please note that some experimental features may exhibit significant instability. You may encounter bugs or performance issues.
- AI responses are generated automatically; they can be inaccurate, biased, or occasionally inappropriate, and they do not represent the views of the developers. To ensure user safety and promote a responsible environment, we employ automated advanced content safety filters in all modes. Nevertheless, it is crucial to remember that AI-generated content is not a substitute for professional advice (e.g., medical, or financial) and critical information should always be verified.
- Due to the unpredictable nature of AI, some content may not be suitable for all ages. We strongly recommend parental guidance for users under 13. You can help us build a safer community by reporting any message you believe violates our policies by long-pressing it.
Terms of Use: https://vertexishere.com/cortex-terms-of-use/
Privacy Policy: https://vertexishere.com/cortex-privacy-policy/
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
What’s New in Cortex?
- Some bug fixes.
Update now and enjoy the new, faster, and smarter Cortex!
The developer, Yasin CAKI, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Contact Info
- User Content
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Yasin CAKI
- Size
- 97.2 MB
- Category
- Productivity
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later.
- Languages
English and 16 more
- English, Arabic, Azerbaijani, Dutch, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Kurdish, Portuguese, Russian, Simplified Chinese, Spanish, Turkish
- Age Rating
13+
- 13+
- Infrequent
Cartoon or Fantasy Violence
Realistic Violence
Profanity or Crude Humor
Mature or Suggestive Themes
Horror/Fear Themes
Medical Treatment information
Alcohol, Tobacco, Drug Use or References
Guns or Other Weapons
Contains
User-Generated Content
Health or Wellness Topics
- In-App Purchases
Yes
- 500 Credits $0.99
- 1000 Credits $1.99
- 2500 Credits $2.99
- 5000 Credits $3.99
- 250 Credits $0.49
- Cortex Annual Plus $39.99
- Cortex Monthly Plus $3.99
- Cortex Monthly Ultra $7.99
- Cortex Annual Pro $59.99
- Cortex Annual Ultra $79.99
- Copyright
- © 2025 Vertex Corporation