Comparison

Lockin Smart vs My Unit Converters

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

Head to head
About

Lockin Smart

This app simplifies keyless living by allowing you to unlock your door using various biometric methods or passcodes. Remotely manage access, see visitors, and receive important alerts, all while integrating with your smart home ecosystem.

Highlights
  • Keyless entry via face, fingerprint, palm vein, passcode, or phone
  • Remote lock/unlock and visitor management
  • Two-way voice intercom
  • Real-time alerts for events
  • Smart home integration (Matter, Alexa, Google Home)
  • On-device biometric data storage
Features
Read full description

Lockin Smart — Keyless living, made simple. No fumbling for keys. No rushing to the door. Lockin is a smart lock company focused on making everyday entry feel smooth, secure, and effortless — so you can come and go freely and answer the door with confidence, wherever you are. - Walk in without a key Unlock with your face, fingerprint, palm vein, passcode, or phone — no keys needed. Supports one-time, periodic, and duration passcodes, so guests and visitors can get in safely and easily. We’re always working on what’s next, with more advanced unlock options coming in the future. - Answer the door with ease See what’s happening at your door and lock or unlock it remotely with one tap. Two-way voice intercom lets you talk to visitors clearly, even when you’re not home. - Know what matters, right away Whether it’s a package at the door or an unlock event, you’ll get the alerts that matter — without constantly checking. - Fits right into your smart home Matter support makes it easy to connect with Alexa, Google Home, and other voice assistants. - Privacy you can feel good about Fingerprints, palm veins, face data, and other biometric information stays stored on the lock itself — never uploaded to the cloud. Questions? Contact us at support@lockin.com.

About

My Unit Converters

Instantly convert units and currencies for daily tasks, travel, and work. Supports numerous categories, custom units, and live exchange rates. Features a built-in calculator and customizable display options.

Highlights
  • Unit and currency conversion
  • Live currency exchange rates
  • Built-in calculator
  • Custom units
  • Recent and pinned conversions
  • Light/Dark/System themes
Features
Read full description

Convert units and currencies instantly with a simple, powerful converter for everyday life, travel, cooking, study, and work. Convert length, weight, volume, temperature, speed, area, time, pressure, energy, data, fuel economy, angle, and more — with live currency exchange rates. Type a number, choose your units, and see the result instantly. Built-in calculator tools, custom units, recent and pinned conversions, and Siri & Shortcuts make everyday conversions faster and easier. CONVERT 14 CATEGORIES • Length • Area • Mass • Volume • Temperature • Time • Pressure • Energy • Digital Storage • Speed • Angle • Fuel Economy • Data Transfer Rate • Currency, with live daily exchange rates BUILT-IN CALCULATOR Do the math without leaving the app. A full on-screen keypad lets you add, subtract, multiply, and divide your values before converting — no need to switch to a separate calculator app. MAKE IT YOURS Don't see the unit you need? Add your own custom units with your own conversion values. Reorder, rename, or hide any unit — built-in or custom — to keep your list focused on what you actually use. LIVE CURRENCY RATES Currency conversions update automatically once a day, so your exchange rates stay current without any effort on your part. Turn auto-updates off anytime if you'd rather manage it manually. YOUR FORMAT, YOUR RULES Choose how many decimal places to show, and pick your preferred decimal and grouping separators to match how you read numbers. LIGHT, DARK, OR SYSTEM Match your device or pick the look you prefer — the whole app adapts instantly. Simple, focused, and built to get you the right number fast.

Screenshots

Lockin Smart4 screens
My Unit Converters4 screens

Verdict

The call

The clearest difference is rating: My Unit Converters at 5.0 against Lockin Smart's 3.2. My Unit Converters also leads on update cadence (every 2 days vs every 3 weeks). Lockin Smart's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, device support and iOS requirement 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. My Unit Converters sells 1 one-off in-app purchase. Lockin Smart asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

My Unit Converters holds the better App Store score, 5.0 against 3.2. That said, the two scores are not equally well evidenced: Lockin Smart has 29 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Lockin Smart ships an update every 3 weeks, My Unit Converters every 2 days. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

Scorecard6 real differences · 4 level
Lockin Smart versus My Unit Converters: the parameters behind the verdict, then further details
ParameterLockin SmartMy Unit Converters
PriceFreeFree
Rating3.2 (29 ratings)5.0 (1 ratings) — better
Positive reviews41.7% of reviews—
Number of ratings29 — better1
Update frequencyEvery 3 weeksEvery 2 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better16.0
Further details — not scored
Size286 MB7 MB
Age rating4+4+
DeveloperLOCKIN (U.S.) INC.Marvin Suo

Customer experience

Lockin Smart

All ratings29 ratings
Positive48.3%
Neutral10.3%
Negative41.4%
Written reviews24 reviews
Positive41.7%
Neutral12.5%
Negative45.8%

My Unit Converters

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Lockin Smart

No in-app purchases

1 purchases

My Unit Converters

One-time1
  • Remove Ads$1.99

Questions

Is Lockin Smart free?
Lockin Smart is free to download, with no in-app purchases.
Is My Unit Converters free?
My Unit Converters is free to download, with in-app purchases available.
Which has better reviews, Lockin Smart or My Unit Converters?
My Unit Converters is rated higher. Lockin Smart averages 3.2 out of 5 from 29 ratings, while My Unit Converters averages 5.0 from 1 ratings.
Do Lockin Smart or My Unit Converters have ads?
My Unit Converters shows ads; Lockin Smart does not.
Which is updated more often, Lockin Smart or My Unit Converters?
Lockin Smart ships an update every 3 weeks, and My Unit Converters every 2 days. Most recently, Lockin Smart was updated on November 8, 2026 and My Unit Converters on October 31, 2026.

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