Houji vs Unit Convert Master
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Houji
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houji is japanese custom. This App calculate houji_days.
Unit Convert Master
Easily convert between over 100 measurement units across 15 categories. This app offers a user-friendly interface, offline functionality, and a history of your conversions for quick access. Ideal for students, professionals, and everyday users needing precise calculations.
- 15+ conversion categories
- 100+ measurement units
- Intuitive interface with themes
- Custom keyboard for input
- Conversion history with search
- Offline functionality
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Transform complex unit conversions into simple tasks with our comprehensive Unit Converter app. Whether you're a student, professional, scientist, engineer, traveler, or home cook, this app has you covered with precise conversions across multiple categories. FEATURES: - 15+ conversion categories including Length, Mass, Temperature, Time, Volume, Area, Speed, Energy, Pressure, Angle, Data Size, Power, Frequency, Radiation, Fuel Economy, and Cooking - 100+ measurement units from common everyday measures to specialized scientific units - Beautiful, intuitive interface with customizable themes - Custom keyboard for easy and accurate input - Swap button to quickly reverse conversion direction - Comprehensive conversion history with search functionality - Copy results with a single tap - Works offline - no internet required CONVERSION CATEGORIES: - Length: meters, feet, inches, miles, light years, and more - Mass: kilograms, pounds, ounces, tons, and specialized units - Temperature: Celsius, Fahrenheit, Kelvin - Time: seconds to years and everything in between - Volume: liters, gallons, cubic meters, and cooking measurements - Area: square meters, acres, square feet, even Japanese tatami - Speed: mph, km/h, m/s, knots, speed of light, and sound - Energy: joules, calories, kilowatt-hours, BTU - Pressure: pascals, bars, psi, atmospheres - Angle: degrees, radians, minutes of arc - Data: bytes, kilobytes up to petabytes - Power: watts, horsepower, BTU/hour - Frequency: hertz, rpm, cycles per second - Radiation: becquerels, curies, grays, rads - Fuel Economy: mpg, km/L, L/100km - Cooking: all essential kitchen measurements
Screenshots
Verdict
The clearest difference is price: Unit Convert Master at Free against Houji's $1.99. Houji's advantage is ads (none vs shown) and iOS requirement (16.1 vs 18.2). On update cadence, in-app purchases 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
Unit Convert Master is free to download; Houji costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Houji ships an update every 7 months, Unit Convert Master every 4 months. The most recent releases landed on September 22, 2026 and September 13, 2026 respectively.
| Parameter | Houji | Unit Convert Master |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 7 months | Every 4 months — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | — | Ad-supported |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.1 — better | 18.2 |
| Further details — not scored | ||
| Size | 4 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | her0.jp | Mizuki Hoshida |
In-app purchases
Houji
No in-app purchases
Unit Convert Master
No in-app purchases
