99ersstudio builds mobile apps.99ersstudio ships web tools and pipelines.99ersstudio makes games.
Independent software studio. We build software for everyone — apps, tools, and pipelines that solve one thing well.
Five disciplines. One studio.
Mobile Apps
Offline-first apps across Flutter, Kotlin/Compose, and React Native. Privacy-respecting. No ad bloat.
Browse →Web Tools
Self-hosted web applications. Real-time dashboards, on-chain tracers, SEO intelligence.
Browse →Pipelines
Content automation, music generation, ASO research — systems that run themselves.
Browse →Games
Board games, card games, a real-money-capable poker platform, and small dopamine-spike roguelikes.
Browse →AI Tools
Bring-your-own-key AI utilities, transcription, and in-house content systems. We pay for our own tokens.
Browse →Selected work.
Poker Platform
Multi-table online poker with real-money-capable risk review, admin tooling, and webhook fan-out.
Mieter App
German tenant-rights companion. 8-city Mietspiegel, Mietpreischeck, Nebenkostenprüfung, PDF export.
SEOMAX
Self-hosted SEO intelligence platform. 77 endpoints, DataForSEO-powered, Docker-deployable.
Follow what we ship, weekly.
Release notes, dev diaries, and the occasional opinion. One email a week. No marketing. Unsubscribe any time.