Nairobi, Kenya

Building apps
the world loves.

AI, social, gaming, and productivity — five apps on the Play Store, crafted with an obsessive eye for detail.

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5
Apps Live
4+
Years Building
KE
Based In
Day's End
Day's End
Social · AI
Narp
Narp
Social Network
Sleevr
Sleevr
Trivia Game
Portfolio

Our Apps

5 apps
Day's End
Day's End
Play StoreWeb

What the world did today.

Event browsing and loggingHourly/country countsCoincidence push notifications
View app →
ShopFlow
ShopFlow
Play Store

Your complete business management solution

Product catalog + barcode scanningQuick sale entryDebt/credit tracking
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Narp
Narp
Play StoreWeb

Social networking app with AI connections

User posts with draft savingAI companion "Franz"User connections and profile viewing
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Sleevr
Sleevr
Play StoreWeb

Cross-platform trivia multiplayer game.

Timed MCQ across categoriesTrivia TrailsGuess the Country
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Three Clues
Three Clues
Play Store

Crossword-style word puzzle game

100 progressive levels across 5 difficulty zones1,864 unique words with cluesDynamic grid generation
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About

One developer.
Relentless craft.

Kelvin Gitu is a Flutter developer based in Nairobi, Kenya, building across AI, social, gaming, and productivity. Every app ships with real monetisation, real users, and a real obsession with quality.

Mobile
FlutterDartRiverpodGo Router
Backend
FirebaseFirestoreCloud Functions
AI
Google Gemini AIVertex AI
Monetise
RevenueCatAdMobIn-App Purchase
Web
Next.jsFirebase HostingGitHub Actions