Comparison

Japan vs Scale Switch

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

Head to head
About

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.

Highlights
  • Length conversion
  • Weight conversion
  • Speed conversion
  • Volume conversion
  • Temperature conversion
  • Area conversion
  • Currency conversion
  • Time zone conversion
Features
Read full description

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

About

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.

Highlights
  • 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
Features
Read full description

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

Japan3 screens
Scale Switch4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Japan sells 1 one-off in-app purchase. Scale Switch asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

Japan ships an update weekly, Scale Switch every 4 months. The most recent releases landed on November 12, 2026 and October 30, 2026 respectively.

Scorecard7 real differences · 2 level
Japan versus Scale Switch: the parameters behind the verdict, then further details
ParameterJapanScale Switch
PriceFreeFree
Rating4.7 (21 ratings)5.0 (1 ratings) — better
Number of ratings21 — better1
Update frequencyWeekly — betterEvery 4 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.2 — better18.1
Further details — not scored
Size19 MB2 MB
Age rating4+4+
DeveloperKoya NamboAlberto Purpura

In-app purchases

1 purchases

Japan

One-time1
  • Premium$3.99
None

Scale Switch

No in-app purchases

Questions

Is Japan free?
Japan is free to download, with in-app purchases available.
Is Scale Switch free?
Scale Switch is free to download, with no in-app purchases.
Which has better reviews, Japan or Scale Switch?
Scale Switch is rated higher. Japan averages 4.7 out of 5 from 21 ratings, while Scale Switch averages 5.0 from 1 ratings.
Do Japan or Scale Switch have ads?
Japan shows ads; Scale Switch does not.
Which is updated more often, Japan or Scale Switch?
Japan ships an update weekly, and Scale Switch every 4 months. Most recently, Japan was updated on November 12, 2026 and Scale Switch on October 30, 2026.

Other comparisons