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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>About — SK APPS</title>
<meta name="description" content="SK APPS — independent developer publishing mobile apps and free web tools across 17 languages.">
<link rel="canonical" href="https://appdevelopsk.com/about">
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<meta property="og:title" content="About — SK APPS">
<meta property="og:description" content="SK APPS — independent developer publishing mobile apps and free web tools across 17 languages.">
<meta property="og:type" content="website">
<meta property="og:url" content="https://appdevelopsk.com/about">
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<meta name="twitter:description" content="SK APPS — independent developer publishing mobile apps and free web tools across 17 languages.">
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</head>
<body>
<nav><div class="nav-inner">
<div class="nav-logo"><a href="/">SK APPS</a></div>
<ul class="nav-links">
<li><a href="/#apps">Apps</a></li>
<li><a href="/about">About</a></li>
<li><a href="/contact">Contact</a></li>
<li><a href="/privacy">Privacy</a></li>
</ul>
</div></nav>
<main class="container">
<h1>About <span class="gradient">SK APPS</span></h1>
<p class="subtitle">Independent developer building useful, well-designed mobile apps and web tools — for everyone, in every language.</p>
<h2>Who we are</h2>
<p>SK APPS is the publishing identity of <strong>Kenichiro Sakamoto</strong>, an independent software developer based in Japan. Since 2024, SK APPS has shipped <strong>mobile applications</strong> on the Google Play Store and the Apple App Store. In 2026 we expanded to the web with <strong>Toolify</strong> (<a href="https://tools.appdevelopsk.com">tools.appdevelopsk.com</a>) — a growing collection of free, browser-based calculators and utilities.</p>
<h2>What we do</h2>
<p>Our work spans three categories:</p>
<h3>Mobile games and quizzes</h3>
<p>Quick, engaging games and trivia that work in 30 seconds or 30 minutes. Examples: <em>30sec Challenge</em>, <em>Brain Burst</em>, <em>Key Clash</em>, <em>Geo Sense</em>.</p>
<h3>AI-powered tools</h3>
<p>Practical AI applications for everyday use: photo-based vocabulary learning (<em>SnapLingo</em>), voice journaling (<em>Voice Memo</em>), conversational practice (<em>Debate Me</em>), AI life logging (<em>Life Trace</em>).</p>
<h3>Reference encyclopedias</h3>
<p>Beautifully illustrated reference apps covering the natural world: dinosaurs, marine life, mushrooms, birds, plants, gemstones, world flags, world heritage sites, and more.</p>
<h3>Web tools (Toolify)</h3>
<p>Free, instant calculators and converters that run entirely in your browser. BMI, calorie, due-date, retirement, ovulation, regex tester, hash generator, and 60+ more — covering health, finance, math, datetime, text, color, and unit conversion.</p>
<h2>Our principles</h2>
<ul>
<li><strong>Useful by default.</strong> Every app and tool should solve a real problem. We do not chase trends.</li>
<li><strong>Privacy-first.</strong> Most web tools run entirely in your browser; nothing is transmitted unless explicitly required. Mobile apps clearly disclose data collection in their individual policies.</li>
<li><strong>Global from day one.</strong> All apps and tools support 17 languages: English, Japanese, Chinese (Simplified and Traditional), Korean, Spanish, Portuguese, French, German, Italian, Russian, Arabic, Hindi, Indonesian, Thai, Vietnamese, and Turkish.</li>
<li><strong>Built to last.</strong> Apps run native on iOS and Android. Web tools are static, fast, and independent of any external API.</li>
</ul>
<h2>Technology</h2>
<p>Mobile apps are built with <strong>Flutter</strong>, allowing us to ship to both iOS and Android from a single codebase. Web tools (Toolify) use <strong>Next.js 15</strong> with full static generation, deployed on a global CDN. We use TypeScript, PostgreSQL, and Redis on the server side where needed.</p>
<h2>Get in touch</h2>
<p>We are a small operation. We read every email and reply personally.</p>
<div class="card">
<p><strong>Email:</strong> <a href="mailto:app.develop.sk@gmail.com">app.develop.sk@gmail.com</a><br>
<strong>Google Play:</strong> <a href="https://play.google.com/store/apps/dev?id=7594721997967679516" target="_blank" rel="noopener">SK APPS publisher page</a><br>
</p>
</div>
</main>
<footer>
<p>© 2026 SK APPS. All rights reserved.</p>
<p style="margin-top:12px;"><a href="/">Home</a> · <a href="/about">About</a> · <a href="/contact">Contact</a> · <a href="/privacy">Privacy</a> · <a href="/terms">Terms</a></p>
</footer>
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