Since 2011, Cleveni has been building lightweight utility apps that more than 200 million people trust every day.
Explore our appsSeven apps. One promise: simple tools that just work.
The all-in-one calculator: unit & currency conversion, dates, discounts, health, loans and more — in one clean app.
Notepad and checklists designed for speed — shopping lists, to-dos, birthdays and quick memos.
A personal budget book that keeps expense tracking effortless — log spending in seconds, see where money goes.
A motivating weight tracker that turns daily weigh-ins into clear progress charts and achievable goals.
Build English vocabulary with bite-sized daily study sessions that fit into any schedule.
A mental math game that sharpens your calculation speed through fun, competitive challenges.
The classic number-guessing puzzle, reimagined — deduce the secret number with logic and strategy.
From Seoul to New York — our apps are used in nearly every country on Earth.
Every marker is a language ClevCalc speaks natively — all 30 of them. Hover a dot to see it.
* Rankings: AppBrain (Jun 2026) · Language count from the App Store listing.
Reviewing utility apps? Making content about productivity, finance, or health? We'd love to collaborate — promo codes, early access, and partnership opportunities await.
Cleveni Inc. is a mobile app studio founded in 2011. We believe the best utility apps are the ones you barely notice — fast, light, and dependable. That philosophy has earned our apps over 200 million downloads and an average rating of 4.65 across Google Play and the App Store.
⚠️ cleveni.com is our only official website. We are not affiliated with any other site distributing our apps or APK files. Always download from Google Play or the App Store.
What reviewers say about our apps.
"ClevCalc is kind of an all-in-one solution for calculator apps."10 Best Calculator Apps for Android → DroidViews
"The most versatile calculator app with practical functions."Read the review → Geeky Gadgets
Selected among "The Best Calculator Apps for Android Phones."See the list → Android Headlines
Featured in "Top 10 Best Calculator Android Apps."See the list →
Questions, feedback, or partnership inquiries — we read everything.
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