Ari CORE
v0.5.1 · iPhone · App Store

Private AI,
in your pocket.

A real assistant on your iPhone — chat, browse, remember, automate. Bring your own keys, run a model on-device, or pair with the aricode desktop over end-to-end encryption. No accounts, no analytics, no middleman between you and the model.

AriCore home screen in solo mode

A model on your phone,
one on your desktop,
or a quiet agent in the background.

Solo · the assistant

An assistant who knows you.

The biggest mode. Bring your own keys, run a local GGUF, or both. Personas with their own memory, routines, watchers, briefings, native iOS tools, and a real browser with Ari sitting beside the page you're on.

  • OpenAI / Anthropic / OpenRouter / your own — keys in the Keychain
  • llama.cpp + Metal for fully offline GGUF inference
  • Browse with Ari, Mail / Calendar / Reminders / Messages tools
  • Per-persona memory, daily briefings, scheduled routines
Linked · paired desktop

Sessions, from the couch.

Scan one QR code to pair with aricode on your Mac. Stream long-running jobs, approve tool calls, and glance at what your workstation is doing without touching it.

  • X25519 + ChaCha20-Poly1305 framing
  • Works on LAN or over Tailscale
  • Relay sees ciphertext only
  • Fingerprint verified on both ends
Desk · agents on your macPreview

Your own little staff.

Named agents live on your Mac — each with a persona, a pinned workspace, and its own browser profile. Chat them like people from the phone; they read mail, browse, file things, draft replies. Anything outside the pin routes to you for a tap.

  • Per-agent persona & toolset
  • Workspace-pinned shell + Chromium with its own profile
  • AppleScript broker for Mail / Calendar
  • Approvals land on your phone

Plug in a provider.
It only takes a minute.

On-device GGUF inference is a real fallback for privacy moments and offline use, but for day-to-day Ari you want a frontier model with full tool support, fast streaming, and a context window that fits a real browse session. Two we recommend:

Easiest start

OpenAI

gpt-5.4-mini as Ari's daily driver — cheap, fast, full tool support. Step up to gpt-5.5 for the harder turns, or gpt-5.4-nano for the absolute cheapest path. Pay-as-you-go; a $5 top-up lasts weeks of casual chat.

  • Rock-solid tool calls and streaming
  • Add in Settings → Providers → OpenAI
  • Key stored in the iOS Keychain only
Best value, daily use

Ollama Cloud

Subscription, billed on GPU time not per-token — Pro is $20/month. Generous quotas covering frontier open models. Daily drivers: deepseek-v4-flash, qwen3-next, gemma4. Frontier picks for harder turns: deepseek-v4-pro, kimi-k2.6, minimax-m2.7, glm-5.1.

  • Flat monthly fee, no surprise bills
  • Open models, frontier-class
  • Add as an OpenAI-compatible custom provider
  • Base URL: https://ollama.com

Want offline? Drop a GGUF into Files → AriCore → Models. No key needed, runs entirely on the phone — just slower and with smaller models.

A handful of capabilities,
quietly assembled into one assistant.

iCloud sync · v0.5

Your devices, one assistant.

Threads, memories, personas, notes, canvases and study courses now travel with your iCloud account. Open AriCore on a second iPhone, an iPad, or your Mac and your full state arrives a few seconds later. Apple operates the infrastructure through your private CloudKit container — we have no access to any of it.

  • Sync the moment you sign into iCloud · no settings to find
  • Local-only fallback if iCloud is signed out
  • Encrypted in transit and at rest in your iCloud
  • Private CloudKit only · no shared servers, no telemetry
Marketplace · v0.5

Plugins, skills and personas — from everyone.

A community gallery of plugins (ONE-mode JS extensions), skills (tools Ari can call) and personas (full assistant configurations) shared between AriCore users. Opt-in to publish, opt-in to install. Every download shows you the full source before it touches your assistant.

  • Star ratings, comments, install counts · light-touch moderation
  • Pick a public handle once · your email is never visible
  • Items you publish are editable and deletable
  • The default Ari persona is locked out of publishing so it can't be shadowed
Personas tab · v0.5

A masked face for every chapter.

Personas finally gets its own bottom-bar tab in Solo — between Study and Browse — so switching between your work, home and research personas is one tap instead of three. The old Settings route still works if you prefer the long way.

  • Theatre-masks icon in the bottom bar
  • Sits next to Study and Browse · always one tap away
  • Persona switching unchanged · just less buried
Browse with Ari

A browser with a copilot.

A real browser inside the app — tabs, bookmarks, history, reader mode, private tabs, ad blocking. A floating Ari orb sits in the corner of the page; tap it and the chat slides up. Ask Ari to summarise, extract, or act on the page in front of you.

  • Multiple tabs, each with its own conversation
  • One-tap: Summarise this page · Compare open tabs · Remember this
  • Configurable homepage and search engine (DuckDuckGo / Google / Bing / Brave / Kagi / Ecosia / Startpage)
  • Always-on ad and tracker blocking · optional HTTPS-only
Acting on the web

It fills the form. You watch.

Ask Ari to add something to a basket, log into a site, file a contact form. It scouts the page, plans every step, and shows you the whole batch on a single approval card before anything fires. Each action highlights the element it's about to touch — you see exactly what's happening.

  • Plan-then-act flow — selectors are real, not guessed
  • Tap-to-Stop at any point, mid-batch
  • Per-domain allowlist · banking / health / identity permanently blocked
  • Cookies persist so login state carries between sessions
Personas

Different sides of you.

A "work" persona that knows your colleagues; a "home" persona that knows the dog's vet; a "research" persona that's read everything you've saved. Each one has its own system prompt, memory bank, default model, and tool allowlist. Switch between them with a tap.

  • Per-persona memory — what one knows, the others don't
  • Per-persona default model and tool allowlist
  • Hybrid memory: pinned + manually-saved + recent
  • "Always allow this tool" rules scoped per persona
iOS tools

Native, not web-faking.

Calendar events, Reminders, Mail drafts, iMessages, Shortcuts. Every tool routes through native iOS APIs — events appear in the system Calendar, drafts open in Mail, reminders are real EKReminders. Approval cards show the exact payload before each call fires.

  • Calendar / Reminders / Mail draft / Messages draft
  • Shortcuts callback for any user-built workflow
  • Weather (open-meteo, no key) for context-aware planning
  • Memory search · history search · current-page read
Routines & briefings

It thinks ahead.

Set a routine that fires every morning, weekday, or specific weekday. Ari writes you a briefing — calendar, weather, reminders, news if you've configured it — and posts it as a fresh thread you can read with coffee. Watchers do the same on event triggers (location, calendar, weather changes).

  • Daily briefing with calendar + weather + reminders
  • Custom routines with scheduled prompts
  • Watchers fire on conditions you set
  • All run in the iOS background, even when the app is closed
Solar Hours

The room changes with the day.

An optional cosmetic. Sun by day, moon by night, with a soft crossfade through dusk and dawn. Cloud outlines drift across the masthead in fair weather; rain, snow, fog, or thunder show up when the forecast says so. A starfield with the rare shooting star at night.

  • Sun / moon mark on the masthead with phase-tied tone
  • Daytime weather visualisation tied to the local forecast
  • Constellations + rare shooting stars after sundown
  • Per-theme palette arcs — every paid theme has its own day
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Skill Library
Hand Ari new tools.
Search, notes, tasks, messaging — a curated set of skills you can copy into AriCore in two taps. Every install gets a review screen first.
Browse →

Ten palettes,
each with its own day.

Free

Paper · Midnight

Paper is the original — warm cream, ink-black type, one gold accent. Midnight matches the website's dark "Golden Thread" aesthetic — deep ink with brass accents. Both ship with the app, both included in Solar Hours' day-arc.

Editorial · IAP

Slate · Vellum · Ink

Slate — cool blue-grey newsroom calm. Vellum — pinks and clays, the art-journal palette. Ink — black on paper, all restraint. Three quieter palettes for users who want neutral chrome without the warm cream.

Dense · IAP

Five new in v0.3.1

Linotype — cornflower / press-blue, hot-metal type. Foxglove — saturated lilac with magenta-purple, deep bloom. Verdigris — jade and tropical teal, glasshouse rooms. Crow — brick-blood with white and black, cinema poster. Manuscript — honey amber with aubergine purpura, illuminated.

Nothing leaves your device without your key.

AriCore has no accounts, no analytics, no crash reporting that phones home. Messages between phone and desktop are end-to-end encrypted with standard primitives — the relay server only ever sees ciphertext.

Handshake

X25519 ephemeral key exchange. A short fingerprint is compared on both screens before anything is trusted.

Transport

ChaCha20-Poly1305 AEAD on every frame. Keys derived with HKDF-SHA256, fresh per session.

Storage

API keys and device keypair live in the iOS Keychain with ThisDeviceOnly access. No iCloud sync, no backup leak.

Platform
iOS 17 and later
Device
iPhone
Price
Free
Made in
United Kingdom

A chat app that doesn't watch you chat.
That's the whole pitch.

Download on the App Store About the desktop →