A factual look at the tools developers use to supervise AI coding agents and reach their dev machine from a phone — agent chat apps, first-party remote control, SSH clients, and VPNs.
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| Feature |
DevReins
this tool
|
Termius
SSH client
|
Tailscale
VPN mesh
|
Happy Coder
agent chat
|
Anthropic
remote control
|
|---|---|---|---|---|---|
| Cross-vendor agent support Claude, Codex, Gemini, Aider | ✓ | ✗ | ✗ | ~ Claude + Codex | ✗ Claude only |
| Mobile-native UI Not pixel streaming or screenshot relay | ✓ | ✓ | ~ VPN only | ✓ | ✓ |
| Self-hosted option Run on your own infrastructure, no cloud dependency | ✓ | ~ Enterprise gateway | ✓ via Headscale | ✓ | ✗ Anthropic bridge |
| Push notifications Alert when agent needs your input | ~ Android + iOS (PWA) | ~ connection alerts | ✗ | ✓ | ✓ |
| Terminal access Full PTY / interactive shell on remote machine | ✓ | ✓ | ✗ needs SSH client | ✗ | ✗ |
| File browser + search Browse, open, and full-text search project files | ✓ | ✓ | ✗ | ✗ | ✗ |
| Git diff viewer Status, commit log, per-file diffs | ✓ | ✗ | ✗ | ✗ | ~ diffs in chat |
| Dev server preview localhost framed in a mobile viewport | ✓ | ✗ | ~ via Funnel (URL only) | ✗ | ✗ |
| AI agent supervision Purpose-built for watching agents work | ✓ | ✗ | ✗ | ✓ chat + approvals | ✓ Claude only |
| Hosted relay (managed URL) Reach your box without port-forwarding | ✓ | ✓ | ✓ | ✓ | ✓ |
| Native iOS app App Store download; no browser required | ~ PWA (installable) | ✓ | ✓ | ✓ | ✓ Claude app |
| End-to-end encryption Data encrypted before leaving the device | ✓ relay-blind | ✓ | ✓ | ✓ | ~ provider sees chat |
| Multi-machine fleet Switch between dev boxes from your phone | ✓ | ✓ | ✓ | ✓ | ~ |
| Cellular optimized Works well on LTE/5G, not just Wi-Fi | ✓ | ✓ | ✓ | ✓ | ✓ |
| Open / source-available Code publicly viewable or inspectable | ~ planned | ~ clients OSS | ~ clients OSS | ✓ MIT | ✗ |
| Pricing Starting cost | Free early access $19/mo Pro (v1.1) | Free tier + $8.33/mo | Free tier + $6/user/mo | Free open source | Claude Pro/Max $20–200/mo plans |
Data sourced from each product's public documentation and App Store listings as of July 2026. Competitor details may change — check their sites for the latest. Rows marked ~ indicate partial support or where we have lower confidence in the claim.
Every tool on this list has a clear strength. Here's when to reach for each one.
Runs on your Windows 11 + WSL2 dev machine today; Mac and Linux installers are targeted for v1.1. Free during early access — install, log in, pick your machine.