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Private AI Chat Offline: L3M

Voice Assistant & Local LLM for iPhone and iPad. Coming soon to the App Store.

Chat offline with AI models on your iPhone and ask your own PDFs, with the source page for every answer. Try everything free for 14 days.

What It Is

L3M (Local Large Language Models) runs open AI models on your iPhone or iPad, with no account and no cloud. On devices with Apple Intelligence, Apple’s on-device model answers at once, with nothing to download. You can also download a model from Hugging Face, or add your own GGUF model from Files or a Hugging Face link.

L3M answering a question offline on iPhoneL3M showing whether a model fits the iPhone's memoryL3M answering from a file with the source page cited
L3M chatting offline on iPad

Key Features

  • Know what fits before you download: every model says whether it runs well, runs with tight memory, needs a check on your phone or won’t run, with the memory arithmetic behind it.
  • Ask your own files: add PDF, Word, PowerPoint and Excel files, notebooks, web pages, text and photos of text. Answers show citation chips with the page and passage they came from.
  • Real downloads: each download shows its size, resumes after a lost connection and is checked against its published fingerprint.
  • Compare models: ask one question to several models and compare the answers side by side.
  • Tools that run on the phone: calculator, date and time and search my files, used by the model when it needs them.
  • Yours to keep: export a chat or one answer as Markdown or PDF, dictate a question, hear answers read aloud, and delete everything whenever you want.
  • Works in Airplane Mode once a model is on your phone.

Private by Design

There is no account. The app goes online only to download the models you choose, to check your purchase through Apple and RevenueCat, to send anonymous usage events (PostHog), and to send feedback through iCloud when you choose to. Your chats, files, prompts and answers never leave your phone and are never part of the usage events.

One Price

Try everything free for 14 days. When the trial ends, L3M asks for a one-time unlock: no subscription, nothing renews.

Good to Know

Small models on a phone can be wrong, so check anything important. Downloaded models carry their own licences, shown on each model’s page.