Comparison

Grass vs Liftoff Air

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Grass

Features
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Meet Grass. Your agents work. You check in. Fire a task. Pocket your phone. Come back to progress. Grass RUNS Tasks on Grass Computer or your own machine - while your laptop is closed, while you're in a meeting, or while you're away from your desk. No terminal to watch. No session to babysit. Grass MOVES Send a coding session to Grass and keep the thread moving on a remote instance โ€” conversation, context, and all. Your phone buzzes when it's live. Grass ALERTS The moment your agent needs a decision or finishes the job. You don't push for status. Status finds you. Permission needed? Approve from your pocket. Grass CLEARS Every permission prompt from every thread in one tab. Read the diff. Yes or no. Keep multiple threads running in ask-mode without watching all of them. Grass STARTS A new thread in two taps. Quick chat button โ†’ bottom sheet โ†’ task running. No app switching. No losing your place. The idea fires โ€” the experiment actually runs. Grass SHOWS Which thread is which. Running, completed, waiting โ€” all visible on the home screen the moment you open the app. Switch machines with one tap. Name them whatever you want. Your harness. Your code. Our compute. Designed for AI coding agent workflows, including supported integrations with Claude Code and OpenCode.

About

Liftoff Air

Features
Read full description

Liftoff Air puts your Mac's terminals in your pocket. Pair once by scanning a QR code, then mirror and control the coding sessions running in Liftoff on your Mac โ€” from anywhere on your local network. โ€ข See every project and tab at a glance, including which AI coding agents (Claude Code, Codex) are running and busy โ€ข Attach to any terminal with a real emulator and a full special-key bar โ€” esc, ctrl, arrows, and function keys โ€ข Open recent projects and spin up new tabs remotely โ€ข Face ID lock and end-to-end encrypted connections โ€ข Try it instantly with the built-in demo โ€” no Mac required Liftoff Air is open source.

Screenshots

Grass4 screens
Liftoff Air4 screens

Verdict

The call

The clearest difference is update cadence: Liftoff Air at every 6 days against Grass's every 2 weeks. Grass's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Grass ships an update every 2 weeks, Liftoff Air every 6 days. Both last shipped on October 31, 2026.

Scorecard3 real differences ยท 3 level
Grass versus Liftoff Air: the parameters behind the verdict, then further details
ParameterGrassLiftoff Air
PriceFreeFree
Update frequencyEvery 2 weeksEvery 6 days โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod โ€” betteriPhone
Requires iOS15.1 โ€” better17.0
Further details โ€” not scored
Size141 MB5 MB
Age rating17+4+
DeveloperAnil DukkipattyOleh Shostkevych

In-app purchases

None

Grass

No in-app purchases

None

Liftoff Air

No in-app purchases

Questions

Is Grass free?
Grass is free to download, with no in-app purchases.
Is Liftoff Air free?
Liftoff Air is free to download, with no in-app purchases.
Do Grass or Liftoff Air have ads?
Neither Grass nor Liftoff Air shows ads.
Which is updated more often, Grass or Liftoff Air?
Grass ships an update every 2 weeks, and Liftoff Air every 6 days. Most recently, Grass was updated on October 31, 2026 and Liftoff Air on October 31, 2026.

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