Private
Nothing leaves your phone.
Chats, voice, and photos are processed on-device. No account, no servers, no training on your words.
Learn morePrivate AI. No signal required.
The AI that lives on your phone, not in a data center.
Loci runs its main AI on your iPhone, so your chats stay private, everyday answers do not use a server farm, and the app keeps working when Wi-Fi or cell service is gone.
Eco-friendly
Answers without a server farm.
Everyday replies run on the iPhone you already own, instead of using a server farm for each answer.
Learn moreNo internet needed
Works without Wi-Fi or cell service.
Download a model once; use Loci on flights, while traveling, or when service is out.
Learn moreOne architecture
One simple reason it feels different.
Loci runs on your iPhone, not on a server farm. That is why it can be private, more eco-friendly, and useful without a connection.
| Question | Loci | Cloud AI |
|---|---|---|
| Privacy and data handling | Loci's main AI runs locally, so no chat data leaves your iPhone. | Prompts are sent to remote servers and usually require an account. |
| Environmental footprint | Everyday AI replies run on your iPhone instead of a server farm. | Every reply depends on remote data center power, cooling, and networking. |
| Works without internet | Works after a one-time model download with no Wi-Fi or cell service. Optional web search is the exception. | Needs a network connection for every request. |
Start here
Start with the three reasons.
The main Loci pages explain private AI, eco-friendly AI, and using AI without internet.
Private AI
AI for sensitive questions because chats stay on-device.
Eco-friendly AI
AI that uses your phone instead of a server farm for everyday replies.
AI without internet
AI that keeps working in airplane mode after a one-time model download.
Download Loci
Private AI. No signal required.
Download Loci from the App Store and keep your AI on the device you already carry.