John Mark Delima

John Mark Delima Overview

John Mark Delima is a Philippines-based mobile and full-stack developer best known for Bugtong Cryptic, a daily Filipino-language wordplay game. His public portfolio identifies him as its creator and lead developer and describes experience in React Native, Next.js, TypeScript, and backend development.^[1] The Google Play listing independently names him as the developer of Bugtong Cryptic.^[2]

Delima's GitHub account, jnale-hub, links back to his portfolio and features educational web and artificial-intelligence projects.^[3] His work bridges consumer puzzle games and practical software engineering rather than focusing solely on AI developer tools.^[1][4]

What John Mark Delima Built

Bugtong Cryptic adapts cryptic clues to Filipino language and culture. The app provides a new puzzle daily, archives, user-submitted clues, video explanations, and streak tracking; its Google Play listing shows more than 10,000 downloads.^[2] Delima reports more than 2,500 daily active users on his portfolio, a self-reported figure rather than an independently audited measurement.^[1]

Dugtong: Hanapin ang Salita expands into themed word-search grids. Players connect letters to form hidden words and can revisit previous puzzles or share results; its Android listing shows more than 10,000 downloads.^[5]

Lalawigan is a daily Philippine geography challenge. Players identify a province within six guesses, guided by distance and direction clues; the Play listing shows more than 1,000 downloads.^[6]

Walwal Cards is a mobile party card game with themed decks, built with React Native, Expo, NativeWind, and Supabase.^[1] A public December 2025 community post introduced the domain as a free game and invited feature feedback, although the post's author identity was not independently confirmed.^[7]

Waldas Simulation is a satirical interactive spending simulation about Philippine politicians, implemented with Vite, TypeScript, and Tailwind CSS.^[1] Its public project page remains accessible.^[8]

CrosswordAI generates filled crossword grids through constraint-satisfaction methods, including node consistency, arc consistency, and backtracking. The public Python repository identifies it as an educational assignment based on CS50 materials, not an AI coding assistant.^[4]

How John Mark Delima Builds

For Bugtong Cryptic, Delima lists Expo, React Native, TypeScript, NativeWind, and Supabase, plus an internal administration dashboard for managing contributed content and bug reports.^[1] He also describes prior engineering work at Dance Vision, where he built an OpenAI Assistants API chatbot prototype and Django REST APIs.^[1]

His portfolio explicitly says he uses AI development tools but does not identify a particular coding editor or agent by name. Accordingly, no specific AI IDE can be verified as part of his workflow from the reviewed primary sources.^[1]

Business Model

The public evidence points to a consumer-game strategy built around recurring daily content and organic distribution. Delima credits TikTok and Instagram promotion with more than 180,000 interactions and describes it as zero-cost user acquisition.^[1] Dugtong's Google Play listing states that the app contains ads, and Bugtong Cryptic's published privacy policy describes advertising partners including Google.^[5][9] Neither source discloses advertising earnings or subscription totals.

Walwal Cards was publicly shared as a free game in its community introduction.^[7] Without published, attributable payment data, there is no basis for assigning recurring revenue to this portfolio.

Timeline

Lessons

The portfolio also illustrates an acquisition approach based on making short-form content for the same audience that plays the game, while providing archives and streaks to encourage return visits.^[1][2] For AI-tool directories, the attribution standard matters: a statement about using unspecified AI development tools does not establish a connection to any particular coding product.^[1]

Further Reading

For general tool research, browse the AI coding tools directory. No tool-specific internal link is included because the reviewed sources do not name a verified AI coding assistant used by Delima.^[1]