Best Offline AI Apps for iPhone and Android (2026)

The best offline AI app depends on your phone and what you want to do without a connection. For free text chat where you pick the model yourself, PocketPal AI (iPhone and Android) and Locally AI (iPhone only) are the strongest free options. Private LLM is a $4.99 one-time buy for Apple devices, and Layla is $19.99 once for people who want characters and offline voices. Every one of them needs internet once to download a model, then works in airplane mode.

If you want one app that does offline chat, offline photo questions and a spoken conversation on both iPhone and Android, for free, Zemith is the one to install. Zemith Offline runs on the phone, needs no account and uses no credits. When you're back online, the same app gives you GPT, Claude, Gemini and the other cloud models, so you don't keep a second AI app for the days you have signal.

Here is Zemith Offline in airplane mode, reading a photo of a Japanese lunch menu and translating it. It's an unedited screen recording on an Android phone.

TL;DR

• Every offline AI app needs one download over the internet (a model of roughly 1 to 4 GB), then works with no connection. In offline mode, nothing you type leaves the phone.
• Free picks as of November 2026: PocketPal AI (iPhone and Android), Locally AI (iPhone, iPad and Mac), Google AI Edge Gallery (iPhone and Android), Enclave (iPhone, iPad and Mac, iOS 27 or later) and Zemith Offline (iPhone and Android).
• Paid one-time picks: Private LLM at $4.99 (Apple devices, text only) and Layla at $19.99 (iPhone and Android).
• For talking out loud with no signal, Zemith, Enclave, Layla and Google AI Edge Gallery do it free; PocketPal's hands-free voice is part of its paid PocketPal Plus.
• Only Zemith, Enclave (Pro, $9.99/month) and Layla (Layla Cloud) also give you hosted cloud models in the same app.

Best offline AI apps compared (November 2026)

Prices and platforms from each app's App Store and Google Play listing and official site, checked November 12, 2026.

The table says "free" for offline use only. PocketPal sells a one-time PocketPal Plus, Enclave and Layla sell cloud subscriptions, and Zemith's paid plans are for its cloud models.

What is the best offline AI app in 2026?

For most people who want offline AI on a phone, the best pick is the app that covers the jobs they'll actually do with no signal: ask a question, read something from a photo, or talk it through out loud. Zemith does all three on iPhone and Android for free. When you're online, the same app becomes a full cloud AI app with GPT, Claude, Gemini and Grok, web search, files and image and video generation, on your phone and on the web. Enclave is the only other app here that pairs offline AI with hosted cloud models, and it's Apple-only and needs iOS 27.

The trade-off is control. Zemith Offline is one model that we chose and tuned for phones, and you can't swap it. If trying different open models is the point, PocketPal AI on Android or Locally AI on iPhone is the better fit.

Can AI work without internet?

Yes. An offline AI app downloads a language model (a file of about 1 to 4 GB) and runs it on your phone's processor, so it answers in airplane mode, on a flight or in a basement with no signal. You need internet once, for the download. After that, nothing you type, say or photograph has to leave the phone.

What you give up is size. A model that fits in a phone's memory knows less and reasons less well than the cloud models behind ChatGPT, Claude or Gemini. It's very good at everyday writing, translation, summaries and explanations, and weaker at niche facts, long math and anything that needs today's news.

Is there an offline AI chat app for Android?

Yes, and Android has fewer good options than the iPhone. Locally AI, Enclave and Private LLM are Apple-only. On Android you can use:

• Zemith: free offline chat with photos, plus offline Live voice on flagship phones. It needs about 6 GB of RAM and a reasonably fast processor for chat.
• PocketPal AI (Google Play): free and open source. You pick GGUF models from Hugging Face yourself, which is great if you know which model you want.
• Google AI Edge Gallery (Google Play): Google's free showcase for its on-device models, with image questions and audio.
• Layla (Google Play): $19.99 once, leaning into characters and roleplay.

Which offline AI apps can you talk to?

Most apps that offer offline voice chain three steps: speech recognition turns your voice into text, the model writes an answer, and a text-to-speech voice reads it out. Enclave lists "On-device voice conversations" in its free tier, Locally AI advertises a voice mode that runs on-device, Google added on-device speech recognition and text to speech to AI Edge Gallery, and Layla lists offline voices. PocketPal's hands-free voice is part of its paid PocketPal Plus.

Zemith's offline Live works differently: one model listens to you and answers in its own voice, so it feels like a call. You can interrupt it mid-sentence, read live captions, and turn on the camera to ask about what's in front of you. It's free, and the full walkthrough is in our guide to an offline AI voice assistant.

How much storage and which phone do you need?

On-device AI is the most demanding thing most people will ever run on a phone, so check before you install. As of November 2026:

• Zemith Offline: about a 1.4 GB download on iPhone. On Android the download is about 2.9 GB and the first start unpacks about 4.9 GB more. Offline chat needs an iPhone 12 or newer (A14 chip, iOS 16.4+) or an Android phone with about 6 GB of RAM; offline Live needs an iPhone 13 or newer or an Android flagship such as a Pixel 8 or 9 or a Snapdragon 8 Gen 1 phone (not yet the Pixel 10 or 11). The app checks your exact phone before it offers the download. The full list is on the offline AI page.
• Layla downloads a 4 GB model on first start and, per its Google Play listing, supports only recent flagship phones with 8 GB of RAM or more.
• Enclave needs iOS 27 or later (App Store), which rules out older iPhones that can't update.
• Locally AI needs iOS 18.1 or later, and Private LLM needs iOS 17 and an A12 chip or newer.
• PocketPal AI and Google AI Edge Gallery depend on the model you pick: smaller models run on more phones, larger ones answer better.

A model that doesn't fit in memory either won't load or will make the phone hot and slow. When in doubt, start with the app's smallest recommended model.

Are offline AI apps private?

When the model runs on the phone, your conversation isn't sent anywhere, which is the main reason people choose them for health questions, money, work documents or anything personal. In Zemith, offline chats, photos and your instructions are stored only on the phone and are deleted with the app.

Two caveats. First, an app that also has cloud features (Zemith, Enclave, Layla) sends a message to a server when you choose a cloud model, so look for which mode you're in; in Zemith, offline chats live in their own "Zemith Offline" list, apart from cloud chats. Second, open-source apps like PocketPal let you read the code, which is the strongest privacy guarantee there is.

What can't an offline AI do?

Expect these limits from any offline AI app in 2026:

• No live information. There's no web search, so it can't tell you today's weather, prices or news.
• Smaller knowledge. It can be wrong about niche facts more often than a cloud model. Check anything important.
• Fewer tools. In Zemith Offline there are no files, plugins, image generation or model switching; those are part of the online app.
• Battery and heat. Long sessions drain the battery faster than normal use.
• iPhone background limits. iOS doesn't let apps use the graphics chip in the background, so in Zemith an offline answer stops if you leave the app; whatever was written so far is kept.

Which offline AI app should you pick?

• You want offline chat, photos and voice on iPhone or Android, free, plus the best cloud models when you're online: Zemith.
• You want to try many open models on Android and don't mind setup: PocketPal AI.
• You have a recent iPhone and want the most polished free text chat: Locally AI.
• You're on iOS 27 and want offline and cloud in one Apple-only app: Enclave, with Pro at $9.99/month for cloud models.
• You want to pay once and never think about it, on Apple devices: Private LLM at $4.99.
• You want AI characters and roleplay offline: Layla at $19.99.

If you also pay for a cloud AI subscription, the offline model in Zemith costs nothing extra, and Zemith Plus at $15.99/month adds Claude, Grok and the other paid models, web search, file creation and image and video generation for the times you're online. See how Zemith's multi-model chat works.

How we compared

We read each app's App Store and Google Play listing, official website and, where there is one, its GitHub page on November 12, 2026, and compared price, platforms, minimum OS, offline voice and photo support, and cloud options. Zemith's details come from the app's own code and settings. We didn't run benchmarks, and speed depends on the phone and the model you pick.

The bottom line: install Zemith if you want offline AI that also talks, reads photos and turns into a full cloud AI app the moment you have signal. Pick PocketPal AI or Locally AI if choosing your own open model matters more than voice and cloud.