Unit Converter HD. vs Japan
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://"
Japan
Easily convert between Japanese and US units for length, weight, speed, volume, temperature, area, currency, and time zones. This tool is useful for travel, daily life, work, and study, offering a wide range of conversion categories.
- Length conversion
- Weight conversion
- Speed conversion
- Volume conversion
- Temperature conversion
- Area conversion
- Currency conversion
- Timezone conversion
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This is a handy tool for easy and convenient everyday unit conversions. It is equipped with features useful in various situations, from travel and daily life to work and study. With this app, you can convert units in the following categories: 1. Length (millimeters, centimeters, meters, kilometers ↔ inches, feet, yards, miles) 2. Weight (milligrams, grams, kilograms, tons ↔ ounces, pounds, stones, short tons) 3. Speed (meters/second, kilometers/hour ↔ feet/second, miles/hour) 4. Volume (cubic millimeters, cubic centimeters, cubic meters, liters ↔ cubic inches, cubic feet, fluid ounces, gallons) 5. Temperature (Celsius ↔ Fahrenheit) 6. Area (square millimeters, square centimeters, square meters, hectares ↔ square inches, square feet, acres) 7. Currency (dollars ↔ yen, using the latest exchange rate) 8. Timezone (Japan Standard Time ↔ Eastern Standard Time, Central Standard Time, Mountain Standard Time, Pacific Standard Time, Alaska Standard Time, Hawaii Standard Time) [Premium Version] - No ads within the app - Unlimited number of favorite registrations Terms of Use: https://jpusconvert-app.github.io/terms.html Privacy Policy: https://jpusconvert-app.github.io/privacy.html
Screenshots
Verdict
The clearest difference is update cadence: Japan at weekly against Unit Converter HD.'s every 2 months. Unit Converter HD.'s advantage is ratings volume (645 vs 20) and iOS requirement (13.0 vs 16.2). 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 Japan 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 Japan. That said, the two scores are not equally well evidenced: Unit Converter HD. has 645 ratings behind it against 20, so its average is the more settled of the two.
Unit Converter HD. ships an update every 2 months, Japan weekly. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.
| Parameter | Unit Converter HD. | Japan |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (645 ratings) | 4.8 (20 ratings) — better |
| Positive reviews | 93.8% of reviews | — |
| Number of ratings | 645 — better | 20 |
| Update frequency | Every 2 months | Weekly — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.2 |
| Further details — not scored | ||
| Size | 86 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | 良峰 侯 | Koya Nambo |
Customer experience
Unit Converter HD.
Japan
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
Japan
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Unit Converter HD.
- Remove Ads Pack$1.99
Japan
- Premium$3.99
Questions
Is Unit Converter HD. free?
Is Japan free?
Which has better reviews, Unit Converter HD. or Japan?
Do Unit Converter HD. or Japan have ads?
Which is updated more often, Unit Converter HD. or Japan?
Other comparisons
