Comparison

US Unit Converter vs Unit and Value Converter

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

Head to head
About

US Unit Converter

Easily convert between US customary units and the International System of Units for various measurements like length, weight, area, volume, and temperature. Access conversion history and remove ads with a premium upgrade.

Highlights
  • Length conversion
  • Weight conversion
  • Area conversion
  • Liquid volume conversion
  • Temperature conversion
  • Conversion history
  • Ad-free option
Features
Read full description

"US Unit Converter" converts the units of length, weight, area, liquid volume, and temperature used in the United States into the International System of Units such as meters and kilograms. Select the category of the unit you want to convert at the top of the screen, enter the value, and you can convert immediately. The units that can be converted are as follows. [Unit of length] Meters [m], centimeters [cm], millimeters [mm], kilometers [km], inches [in], feet [ft], yards [yd], miles [mile] [Unit of weight] Kilogram [kg], gram [g], pound [lb], ounce [oz] [Unit of area] Square meters [m2], Are [a], hectares [ha], square kilometers [km2], square feet [ft2], square inches [in2], square miles [mi2], acres [acre], square yards [yd2] [Unit of liquid volume] Litre [L], milliliter [ml], fluid ounce [fl oz], cup [cup], pint [pt], quart [qt], gallon [gal] [Temperature unit] Celsius [℃], Fahrenheit [℉] In the free version, you can see only the previous data in the conversion history. If you want to see 100 historical data or hide ads, please consider purchasing the premium version in the app. ---------------------- Terms of Service and Privacy Policy: https://akikibai-labolatory.jimdofree.com/privacy-policy/

About

Unit and Value Converter

Easily convert between various measurement systems for everyday tasks. This app offers fast, accurate conversions for speed, weight, and distance, with a history of your calculations. It's a simple, lightweight tool for travelers, students, and anyone needing to understand different units.

Highlights
  • Converts speed, weight, and distance
  • Intuitive interface
  • History of recent calculations
  • Automatic result updates
  • Lightweight and simple
Features
Read full description

The Unit Converter was designed to make everyday life easier for anyone who needs to work with different measurement systems around the world. Whether traveling, studying, working, or just curious, this app offers a fast and intuitive way to convert units and understand equivalences that may not be part of your daily routine. It provides fast and accurate conversions between speed, weight, and distance, and also keeps a history of recent calculations. Just enter the desired value, choose the source and target units, and tap “=” to view the result. If you change the units after converting, the app updates the result automatically. Simple, lightweight, and hassle-free.

Screenshots

US Unit Converter4 screens
Unit and Value Converter3 screens

Verdict

The call

The clearest difference is in-app purchases: Unit and Value Converter at none against US Unit Converter's 1. Unit and Value Converter also leads on update cadence (every 9 days vs every 6 months) and iOS requirement (12.0 vs 15.6). US Unit Converter's advantage is rating (4.8 vs 4.3) and ratings volume (110 vs 24). On price, 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. US Unit Converter sells 1 one-off in-app purchase. Unit and Value Converter asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

US Unit Converter holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 110 and 24 respectively.

UpkeepUpdate frequency

US Unit Converter ships an update every 6 months, Unit and Value Converter every 9 days. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 4 level
US Unit Converter versus Unit and Value Converter: the parameters behind the verdict, then further details
ParameterUS Unit ConverterUnit and Value Converter
PriceFreeFree
Rating4.8 (110 ratings) — better4.3 (24 ratings)
Positive reviews44.4% of reviews—
Number of ratings110 — better24
Update frequencyEvery 6 monthsEvery 9 days — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.612.0 — better
Further details — not scored
Size6 MB32 MB
Age rating4+4+
DeveloperKei SuefujiMatheus Estoque

Customer experience

US Unit Converter

All ratings109 ratings
Positive95.4%
Neutral0.9%
Negative3.7%
Written reviews9 reviews
Positive44.4%
Neutral11.1%
Negative44.4%

Unit and Value Converter

All ratings24 ratings
Positive79.2%
Neutral12.5%
Negative8.3%

In-app purchases

1 purchases

US Unit Converter

One-time1
  • PREMIUM$3.99
None

Unit and Value Converter

No in-app purchases

Questions

Is US Unit Converter free?
US Unit Converter is free to download, with in-app purchases available.
Is Unit and Value Converter free?
Unit and Value Converter is free to download, with no in-app purchases.
Which has better reviews, US Unit Converter or Unit and Value Converter?
US Unit Converter is rated higher. US Unit Converter averages 4.8 out of 5 from 110 ratings, while Unit and Value Converter averages 4.3 from 24 ratings.
Do US Unit Converter or Unit and Value Converter have ads?
Both US Unit Converter and Unit and Value Converter show ads.
Which is updated more often, US Unit Converter or Unit and Value Converter?
US Unit Converter ships an update every 6 months, and Unit and Value Converter every 9 days. Most recently, US Unit Converter was updated on November 7, 2026 and Unit and Value Converter on November 3, 2026.

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