Comparison

Units vs Hearth Cmd

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

Head to head
About

Units

Easily convert between hundreds of units across 43 categories, including currency with daily updated rates. Customize your workflow by hiding or reordering units and categories.

Highlights
  • Hundreds of units across 43 categories
  • Daily updated currency exchange rates
  • Hide unused units
  • Reorder units and categories
  • Universal app support (iPhone, iPod touch, iPad)
Features
Read full description

Units is a really useful free app that lets you easily convert from various units into lots of others. Units can convert hundreds of units from 43 different categories including Speed, Time, Length, Volume, Area, Power, Temperature, Fuel Consumption, Shoe Sizes and loads more! Units is a fully universal app with native support for iPhones, iPod touches, and iPads. • Convert hundreds of units - Units has over 800 units across 43 different categories. • Convert currency - Units can convert between 88 different currencies, with rates updated daily. • Hide unused units - Units lets you hide units you don't use, allowing you to maintain a streamline conversion workflow. • Reorder both units and unit categories to suit your needs.

About

Hearth Cmd

Features
Read full description

Hearth puts AI agents to work for you at home. Run agents on your Mac or Linux machine to handle the tasks you never get to — and stay in control from your phone. When an agent is about to do something sensitive, it asks first. You get a notification on your iPhone and tap Allow or Deny. Tap "Always Allow" on actions you're comfortable with and Hearth remembers. Over time, your agents get more autonomous for the things you trust them with, and interruptions become rare. FREE FEATURES • Approve from anywhere — agents ask before anything important; handle requests in seconds from your phone • Talk to your agents — send instructions to any running agent mid-task from your phone, no laptop required • Smart rules — tap "Always Allow" once; Hearth handles it automatically from then on • See everything — the Transcript tab shows exactly what every agent is doing, step by step, in real time • Multiple agents — run separate agents with distinct rules and activity histories • Rich previews — see exactly what the agent wants to do before you approve • Pull the Plug — stop any agent instantly with one tap HEARTH PRO • Push notifications — get notified when an agent needs you, even when the app is closed • Time Sensitive alerts — break through Focus modes • Voice input — on-device speech-to-text powered by WhisperKit (iPhone 12+) • Temporary grants — time-limited auto-approve rules that expire automatically Your agents run on your own machine. Hearth relays requests to your phone — nothing executes without your rules. Hearth Cmd is an independent product and is not affiliated with Anthropic, GitHub, Anysphere, OpenAI, or any other AI provider. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Units3 screens
Hearth Cmd4 screens

Verdict

The call

The clearest difference is ads: Hearth Cmd at none against Units's shown. Units's advantage is update cadence (monthly vs every 2 months) and device support (3 vs 1). On price and in-app purchases there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Units sells 3 one-off in-app purchases and Hearth Cmd sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Units ships an update monthly, Hearth Cmd every 2 months. The most recent releases landed on October 14, 2026 and October 5, 2026 respectively.

Scorecard4 real differences · 6 level
Units versus Hearth Cmd: the parameters behind the verdict, then further details
ParameterUnitsHearth Cmd
PriceFreeFree
Rating3.6 (150 ratings) — better—
Positive reviews60.0% of reviews—
Number of ratings150 — better—
Update frequencyMonthly — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.5 — better16.0
Further details — not scored
Size2 MB3 MB
Age rating4+17+
DeveloperHomegrown Software LtdVerge Labs LLC

Bugs and requests

Units

Reported bugs

4 issues
  • Crashes when clearing input fields
  • Numerical keypad covers conversion results
  • Incompatibility issues with newer iOS versions
  • Ruler measurements not accurate on all devices

Requested features

5 requests
  • Add nautical units (miles, knots)
  • Improve currency conversion accuracy and updates
  • Allow customization of visible unit categories
  • Add more clothing/shoe size conversions
  • Improve user interface and search functionality

Hearth Cmd

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Units

One-time3
  • Small Tip$0.99
  • Medium Tip$2.99
  • Large Tip$4.99
2 purchases

Hearth Cmd

Subscriptions2
  • Pro Monthly$2.991 Month
  • Hearth Pro Multi-home$9.991 Month

Questions

Is Units free?
Units is free to download, with in-app purchases available.
Is Hearth Cmd free?
Hearth Cmd is free to download, with in-app purchases available.
Do Units or Hearth Cmd have ads?
Units shows ads; Hearth Cmd does not.
Which is updated more often, Units or Hearth Cmd?
Units ships an update monthly, and Hearth Cmd every 2 months. Most recently, Units was updated on October 14, 2026 and Hearth Cmd on October 5, 2026.

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