Comparison

Ångström, the unit converter vs LessPass

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

Head to head
About

Ångström, the unit converter

Effortlessly convert units, currencies, and timezones with a fast, intuitive interface. Simply type a number and a few letters to get instant results, with smart suggestions and offline currency rates. Unlock additional features like timezone conversion through an in-app purchase.

Highlights
  • Instant conversion as you type
  • Dedicated numpad
  • Smart unit suggestions
  • Offline currency rates
  • Learns user conversion habits
  • Supports alternative unit spellings
Features
Read full description

Convert units, currencies and timezones faster than you type. Start with the number, then type one or two letters and see the result. Use dedicated numpad to avoid switching keyboards. Forget digging through endless unit categories in urge to find the one you need (although you can do it when in adventure mood). If the number is in your clipboard, we’ll pick it up. We learn what you convert to make better guesses over time. We keep currency rates updated, but show you approximate values when offline. We support alternative spelling of many units. Type “45f”, get Fahrenheit converted to centigrade right away. Or maybe you meant feet to meters? We’ll show that, too. We know, by the way, that it’s natural to convert feet to meters, but miles to kilometers. Get timezones conversion and more units with in-app purchase. Or just show your support by upgrading :-)

About

LessPass

This app generates unique, strong passwords for any website using a master password and site-specific information. It operates offline, eliminating the need for cloud synchronization or password vaults across devices.

Highlights
  • Offline password generation
  • Stateless operation
  • Unique password per site
  • No cloud sync required
  • Master password security
Features
Read full description

LessPass computes a unique password using a site, login, and a master password. You don't need to sync a password vault across every device or to the cloud, because LessPass works offline!

Screenshots

Ångström, the unit converter4 screens
LessPass3 screens

Verdict

The call

The clearest difference is in-app purchases: LessPass at none against Ångström, the unit converter's 1. LessPass also leads on review sentiment (100% vs 84%). Ångström, the unit converter's advantage is rating (4.8 vs 4.5) and ratings volume (31 vs 2). On price, update cadence, ads and device support 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. Ångström, the unit converter sells 1 one-off in-app purchase. LessPass asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Ångström, the unit converter holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Ångström, the unit converter has 31 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 84% of Ångström, the unit converter's written reviews are positive against 100% of LessPass's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Ångström, the unit converter ships an update every 3 months, LessPass every 2 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 4 level
Ångström, the unit converter versus LessPass: the parameters behind the verdict, then further details
ParameterÅngström, the unit converterLessPass
PriceFreeFree
Rating4.8 (31 ratings) — better4.5 (2 ratings)
Positive reviews84.3% of reviews100.0% of reviews — better
Number of ratings31 — better2
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS12.0 — better15.1
Further details — not scored
Size22 MB28 MB
Age rating4+4+
DeveloperAlexander BabaevGuillaume Vincent

Customer experience

Ångström, the unit converter

All ratings31 ratings
Positive93.5%
Neutral3.2%
Negative3.2%
Written reviews70 reviews
Positive84.3%
Neutral8.6%
Negative7.1%

LessPass

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Ångström, the unit converter

Reported bugs

7 issues
  • Additional keyboard and unit selection are broken with iOS update
  • App crashes after launch
  • App asks to sign into iTunes account
  • Conversions are wrong (e.g., 1 cup = 250ml)
  • Apple Watch app is dictation only
Show 2 more
  • In-app purchase issue was a bug earlier (now fixed)
  • Widget displays last used conversion, needs configuration for multiple units

Requested features

41 requests
  • Add grain (граны) as a unit of measurement
  • Add UK imperial measurements (pounds and ounces)
  • Add Kazakhstani Tenge typographic symbol (₸)
  • Add time conversion from am/pm to 24-hour format
  • Improve built-in keyboard and unit selection
Show 36 more
  • Add viscosity of liquids
  • Add more interface languages (e.g., English)
  • Make the app available on Android
  • Add extensions like widgets and Siri integration
  • Localize the app name
  • Improve English translations
  • Add Asian units (e.g., 평, 단보, 정보)
  • Add typography, music, and clothing units
  • Add kW to hp to PS conversion
  • Add composite units (e.g., m3/sec)
  • Add feet and inches conversion
  • Add fuel efficiency conversions (e.g., mpg to km/l)
  • Add MMBTU unit
  • Add widgets with configurable display
  • Add nautical miles conversion
  • Add miles per gallon conversions
  • Add UK imperial measurements (pounds and ounces)
  • Add Kazakhstani Tenge typographic symbol (₸)
  • Add time conversion from am/pm to 24-hour format
  • Improve built-in keyboard and unit selection
  • Add viscosity of liquids
  • Add more interface languages (e.g., English)
  • Make the app available on Android
  • Add extensions like widgets and Siri integration
  • Localize the app name
  • Improve English translations
  • Add Asian units (e.g., 평, 단보, 정보)
  • Add typography, music, and clothing units
  • Add kW to hp to PS conversion
  • Add composite units (e.g., m3/sec)
  • Add feet and inches conversion
  • Add fuel efficiency conversions (e.g., mpg to km/l)
  • Add MMBTU unit
  • Add widgets with configurable display
  • Add nautical miles conversion
  • Add miles per gallon conversions

LessPass

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Ångström, the unit converter

One-time1
  • Full unit pack$1.99
None

LessPass

No in-app purchases

Questions

Is Ångström, the unit converter free?
Ångström, the unit converter is free to download, with in-app purchases available.
Is LessPass free?
LessPass is free to download, with no in-app purchases.
Which has better reviews, Ångström, the unit converter or LessPass?
Ångström, the unit converter is rated higher. Ångström, the unit converter averages 4.8 out of 5 from 31 ratings, while LessPass averages 4.5 from 2 ratings.
Do Ångström, the unit converter or LessPass have ads?
Neither Ångström, the unit converter nor LessPass shows ads.
Which is updated more often, Ångström, the unit converter or LessPass?
Ångström, the unit converter ships an update every 3 months, and LessPass every 2 months. Most recently, Ångström, the unit converter was updated on November 1, 2026 and LessPass on November 3, 2026.

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