Unit Converter HD. vs US Unit Converter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Unit Converter HD.
Easily convert over 700 units across 30 categories with this powerful tool. It offers a user-friendly interface, dark mode support, and a backspace key for quick corrections. Save time on all your measurement conversion needs.
- 700+ Units of Measure
- 30 Conversion Categories
- Easy-to-Use Interface
- Dark Mode Support
- Backspace Key
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The most powerful unit converter in the market. Helps you make easy conversion between more than 700+ various units of measure in 30 categories. Discover a universal assistant for all of your unit conversion needs. Features: √ 30 Categories √ 700+ Units of Measure √ Backspace key √ Extremely Easy-to-Use √ Supports Dark Mode Save Your Time. Quickly & Easily! Universer Unit Converter Free HD URL scheme is "EWUnitConverterFree://"
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.
- Length conversion
- Weight conversion
- Area conversion
- Liquid volume conversion
- Temperature conversion
- Conversion history
- Ad-free option
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"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/
Screenshots
Verdict
Unit Converter HD. and US Unit Converter both sit at 4.7 stars, but that hides the real split: 94% of Unit Converter HD.'s written reviews are positive against 44% of US Unit Converter's. Unit Converter HD. also leads on update cadence (every 2 months vs every 6 months) and ratings volume (644 vs 110). On price, rating, ads 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
Both are free to download. Unit Converter HD. sells 1 one-off in-app purchase and US Unit Converter sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.7 for Unit Converter HD. against 4.8 for US Unit Converter. That said, the two scores are not equally well evidenced: Unit Converter HD. has 644 ratings behind it against 110, so its average is the more settled of the two. Written reviews are what separate them: 94% of Unit Converter HD.'s written reviews are positive against 44% of US Unit Converter's.
Unit Converter HD. ships an update every 2 months, US Unit Converter every 6 months. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.
| Parameter | Unit Converter HD. | US Unit Converter |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (644 ratings) | 4.8 (110 ratings) — better |
| Positive reviews | 93.8% of reviews — better | 44.4% of reviews |
| Number of ratings | 644 — better | 110 |
| Update frequency | Every 2 months — better | Every 6 months |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 86 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | 良峰 侯 | Kei Suefuji |
Customer experience
Unit Converter HD.
US Unit Converter
Bugs and requests
Unit Converter HD.
Reported bugs
2 issues- Freezing or crashing on some devices
- Display issues with certain units
Requested features
3 requests- Add support for US weights (tons, lbs., oz.)
- Implement portrait mode support
- Provide more customization options
US Unit Converter
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Unit Converter HD.
- Remove Ads Pack$1.99
US Unit Converter
- PREMIUM$3.99
Questions
Is Unit Converter HD. free?
Is US Unit Converter free?
Which has better reviews, Unit Converter HD. or US Unit Converter?
Do Unit Converter HD. or US Unit Converter have ads?
Which is updated more often, Unit Converter HD. or US Unit Converter?
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