Pi Companion vs JSON DevKit Editor

Pi Companion is an unofficial iOS companion app for the Pi coding agent (pi.dev) — browse your projects, read full chat history, and keep talking to your agents while away from your Mac. Start a task in your terminal, go for a walk, keep directing the agent from your phone, and come back to continue on the desktop — same session, no restarts. HOW IT WORKS A small open-source companion server runs on your Mac. It reads Pi's session files and drives Pi over its documented RPC protocol. The app connects directly to your Mac over your own network — no cloud, no accounts, no analytics. Use tools like Tailscale to reach your Mac from anywhere. FEATURES • Projects and workspaces: the folders you choose, grouped by git repo, with branches and live status • Full chat history: messages, thinking blocks, tool calls, and images • Send messages: continue any session from your phone; the terminal picks up exactly where you left off • New sessions and git worktrees, started from your phone • Model picker: Pi's full catalog across 15+ providers, switchable mid-session • Diffs: review each workspace's changes on your phone REQUIREMENTS A Mac running Pi (pi.dev), Bun, and the free companion server (link on the support page). This app is not affiliated with or endorsed by the Pi project.

JSON DevKit is a JSON workbench for iPhone and iPad. View, edit, format, validate, convert, and compare JSON in one place—built for developers, QA engineers, and API testers who need fast answers on mobile. CORE WORKFLOW • Open JSON from the editor, clipboard, files, or a URL • Pretty-print or minify with syntax highlighting and line numbers • Explore structure in tree view or flatten nested data into a table • Run JSONPath queries and inspect matched results • Generate and validate JSON Schema • Compare two JSON documents with a synced side-by-side diff • Convert JSON to CSV, TSV, XML, YAML, TOML, TOON, Markdown table, HTML, or Base64 • Generate model stubs for Swift, Kotlin, TypeScript, Dart, Java, Python, and C# BUILT FOR REAL WORK • Multi-tab workbench keeps source and output snapshots as you switch tools • Large payloads are processed off the main thread with progress feedback • iPhone and iPad layouts adapt to your device—same tools, optimized navigation • Recent history helps you return to earlier documents quickly PRIVACY BY DESIGN • All JSON processing happens on your device • No account required to use core features • Firebase Analytics (Google) collects anonymous usage events only—no JSON content or ad identifiers • No ads, no subscriptions, and no in-app purchases. All tools are included. • Your data stays local unless you explicitly copy, share, or export it Whether you are debugging an API response, checking a config file, or converting JSON for a report, JSON DevKit keeps the workflow focused and fast.