Agents Never Sleep vs Henji: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of Agents Never Sleep and Henji — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
Agents Never Sleep
Agents Never Sleep
A tiny $4.99 Mac menu bar app that keeps long-running AI agents alive with the laptop lid closed, using one three-level slider.
Key features
- Closed-Lid Operation: Keeps agents and background jobs running with the MacBook lid shut, which the built-in caffeinate command cannot do.
- Three-Level Slider: One control with Sleepy, Awake, and Never sleeps settings, so changing sleep behavior takes a single drag rather than a terminal command.
- Menu Bar Only: Lives entirely in the menu bar with no window, dock icon, or configuration screens to manage.
- Native and Tiny: A small native macOS binary rather than a wrapped web app, minimizing overhead on a machine already running agents.
- Zero Data Collection: No telemetry, analytics, or tracking; what runs on the machine stays on the machine.
- Safe Revert: Toggling back down restores normal sleep behavior, avoiding the common mistake of leaving sudo pmset -a disablesleep 1 permanently enabled.
- No-Questions Refund: A 14-day money-back guarantee with no form to fill in and no reason required.
Best for
- Overnight Agent Runs: Letting a coding agent work through a long task while the laptop is closed and put away.
- Long Builds and Tests: Preventing a multi-hour build, test suite, or data job from being interrupted mid-run by sleep.
- Mobile Working: Carrying a MacBook between rooms or offices without propping the lid open to keep a job alive.
- Model Downloads and Training: Keeping large model downloads or local fine-tuning runs going unattended.
- Avoiding pmset Mistakes: Replacing manual sudo pmset toggles that are easy to enable and easy to forget to undo.
- Remote Sessions: Keeping a Mac reachable and working for a remote session or background service while it sits closed on a desk.
Henji
Henji
Mac app that drafts chat and email replies in your own voice across Slack, LINE, Gmail, and Messages.
Key features
- Voice Matching: Learns your usual tone and phrasing over time so replies read as you-ish rather than AI-ish.
- Tone Modes: Switch between Polite, Casual, Team, and Friends styles so each reply fits the relationship and channel.
- Multi-Channel Coverage: Works across Slack, LINE, Gmail, and Messages so chat and email replies are handled in one place.
- Scribble-to-Reply: Type a short note or intent and Henji expands it into a complete, context-aware message.
- Multilingual: Supports multiple languages including English and Japanese for replies.
Best for
- Faster Messaging: Knocking out quick chat and email replies during a busy day without sounding robotic.
- Difficult Replies: Politely declining requests or negotiating deadlines while keeping the tone warm.
- Team Communication: Keeping internal Slack threads fast and to the point with a team-appropriate tone.
- Cross-Language Correspondence: Drafting replies in English or Japanese for international contacts.