Japan vs Scale Switch
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Japan
Easily convert between Japanese and US units for length, weight, speed, volume, temperature, area, currency, and time zones. Ideal for travel, daily life, work, and study.
- Length conversion
- Weight conversion
- Speed conversion
- Volume conversion
- Temperature conversion
- Area conversion
- Currency conversion
- Time zone 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
Scale Switch
This utility app simplifies unit conversions with an intuitive interface. Easily convert between various units for time, data, temperature, area, volume, and more. It's designed for quick, reliable conversions on the go.
- Easy-to-use interface for conversions
- Wide range of supported units
- Converts time, data, temperature, area, volume, and more
- Intuitive and clutter-free design
- Quick and reliable results
- Supports various measurement systems
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Simplify your life with our all-in-one unit conversion app. Whether you're cooking, planning a trip, or working on a project, this app makes conversions seamless and intuitive. Key Features: Easy-to-Use Interface: Just type a numeric value followed by its original unit and the target unit. Example: "1.5h to min" converts hours to minutes. "20 C to F" converts Celsius to Fahrenheit. "1 sqft to sqm" converts square feet to square meters. Wide Range of Supported Units: Time: Seconds, minutes, hours, days, weeks. Digital Data: Bits, bytes, kilobytes, megabytes, gigabytes, and more. Temperature: Celsius, Fahrenheit, Kelvin. Area: Square meters, square feet, acres, hectares, and more. Volume: Milliliters, liters, US and Imperial measurements. Fuel Efficiency: Kilometers per liter, miles per gallon, liters per 100km. Length: Millimeters, centimeters, inches, feet, yards, miles, and more. Mass: Grams, kilograms, ounces, pounds, tons, and more. Power: Watts, kilowatts, horsepower, BTU/h. Intuitive Design: Quickly find what you need with a clean, user-friendly layout. Why Choose This App? No complex menus or unnecessary clutter—just type, convert, and get your answer. Perfect for professionals, students, and anyone needing quick, reliable conversions on the go. Download now and convert like a pro!
Screenshots
Verdict
The clearest difference is in-app purchases: Scale Switch at none against Japan's 1. Scale Switch also leads on ads (none vs shown) and rating (5.0 vs 4.7). Japan's advantage is update cadence (weekly vs every 4 months) and ratings volume (21 vs 1). On price 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
Both are free to download. Japan sells 1 one-off in-app purchase. Scale Switch asks for nothing beyond the download.
Scale Switch holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Japan has 21 ratings behind it against 1, so its average is the more settled of the two.
Japan ships an update weekly, Scale Switch every 4 months. The most recent releases landed on November 12, 2026 and October 30, 2026 respectively.
| Parameter | Japan | Scale Switch |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (21 ratings) | 5.0 (1 ratings) — better |
| Number of ratings | 21 — better | 1 |
| Update frequency | Weekly — better | Every 4 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.2 — better | 18.1 |
| Further details — not scored | ||
| Size | 19 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Koya Nambo | Alberto Purpura |
In-app purchases
Japan
- Premium$3.99
Scale Switch
No in-app purchases
Questions
Is Japan free?
Is Scale Switch free?
Which has better reviews, Japan or Scale Switch?
Do Japan or Scale Switch have ads?
Which is updated more often, Japan or Scale Switch?
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