Endemic: Local On-Device AI
Chat with Private Offline LLM
Free
Endemic runs large language models on your iPhone, iPad, and Mac. No API keys. No cloud. No subscription. The model lives on your device and so do your conversations.
Download a model from the curated catalog, then chat offline from that point on. The catalog filters by your device's RAM so you only see models that actually fit your hardware.
Ships with the latest open source models in sizes from 0.8B (any recent iPhone) to 9B (Mac and iPad Pro with 16GB+). More model families coming.
WHAT LOCAL INFERENCE ACTUALLY MEANS
The model runs on your CPU and GPU. No request leaves your device during a conversation. This is not "private cloud" or "encrypted API calls." The computation happens on the hardware in your hand.
The tradeoff is real: a 4B model on a phone produces useful results for many tasks, but it will not match a frontier model on datacenter hardware. If you need the best possible responses, cloud AI is the answer. If you want a model you own on a device you own, this is it.
MODELS AND DEVICES
Endemic detects your hardware and recommends the strongest model that fits. An iPhone with 8GB runs the 4B comfortably. iPads and Macs with 16GB+ handle the 9B. The 0.8B fits anything and responds fast.
Models are open-weight GGUF files downloaded from public hosting. One download, stored locally, excluded from iCloud backup so it does not eat your storage quota.
PRIVACY
There is no Folding Sky backend. No analytics on your conversations. Conversations sync through your personal iCloud if you want, and nowhere else.
Free app. Open-weight models. Built by one person in Beaverton, Oregon.
Privacy Policy: https://folding-sky.com/privacy
Terms of Service: https://folding-sky.com/terms
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Folding Sky Co, 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 Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
For more information, visit the developer’s accessibility website .
Information
- Seller
- Folding Sky Co
- Size
- 30.5 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Age Rating
18+
- 18+
- Copyright
- © 2026 Folding Sky Co