‎Halo

‎Halo is a personal AI assistant that connects to local data sources like mail, calendar, and reminders to perform tasks while keeping all information private.

Halo is a personal AI assistant that integrates with phone data sources, including email, calendar, reminders, health apps, and music, to perform actions. The application builds a private, local knowledge base of facts, preferences, and routines that stays on the device without backend storage. Users connect their own API keys to choose their preferred AI model, ensuring no middleman server accesses their data. Halo functions as an agent capable of breaking requests into steps, conducting research, organizing files, and interacting with services via MCP connectors. It features a built-in command-line environment for file management and script execution. The assistant provides insights, manages schedules, and offers email reply suggestions based on the user's personal writing style.

‎Halo at a glance

Best for: Product manager, Founder
Runs on: iOS
Pricing: Free trial (7 days); Halo Pro $49.99 (In-App Purchase)
Released: October 2026
Category: AI agent tool
Website: App Store

Key features

Private, on-device memory graph and knowledge base
Semantic search across connected local data sources
Agentic task breakdown and tool execution
User-provided API key support for AI processing
MCP connector integration for services
Built-in command-line environment for file management
Automated scheduling for routine tasks

Use it for

Scheduling routine online tasks and gathering information
Organizing and searching files through a command-line interface
Generating context-aware email replies
Researching topics and managing calendar events
Managing relationships and routines via personal memory

Alternatives to ‎Halo

Comma — It operates 24/7 on a cloud computer to finish tasks independently.
Agenta — Build and automate AI agents that run on your own infrastructure or the cloud.
Yao — Self-hosted agent platform with task tracking on centralized boards.
Keiki — Deploy one AI agent across multiple messaging channels with built-in tools and memory.
OpenAgent — Self-hosted single binary with MCP support, 30+ model providers, and zero data leakage.
AI Agent — Automates repetitive tasks with AI agents connected to your tools.
Alook — Connects existing local coding agents to team communication channels.
Sauna — Operates in the cloud to manage workflows and communications autonomously.
Cue by Manus — Agents operate independently with their own digital identity and computer access.
AionUi — Auto-detects and runs local CLI agents like Claude Code and Codex in parallel.
Nysa — Connects your team and agents to one shared, secure brain over MCP.
Yuki — It handles everyday life admin by checking details and asking for approval first.

All ‎Halo alternatives