Historia de Chile: Trivia
Live on the App Store Live on Google PlayTrivia that teaches Chilean history by playing it.
View on the App Store → View on Google Play →// Apps
Built, shipped, and in your pocket.
Every app here is built with the same system — designed, built, and shipped to the App Store by DSolutions. Honest status on each one.
// Live
Live on the App Store
Puntos Carioca
Live on the App StoreA score keeper for Carioca, the Chilean card game — rounds, ranking, and achievements.
View on the App Store →
PAES Historia S.O.S.
Live on the App Store Live on Google PlayTimed practice exams for Chile's PAES History & Social Science test, plus a free Lite version.
View on the App Store → View on Google Play → Free Lite version →
PAES Ciencias S.O.S.
Live on the App Store Live on Google PlayTimed practice exams for the PAES Sciences elective (Biology, Physics, Chemistry).
View on the App Store → View on Google Play →
PAES Matemáticas S.O.S.
Live on the App Store Live on Google PlayTimed practice exams for the PAES Mathematics test — 1,017 original questions across all four axes.
View on the App Store → View on Google Play →
Farmacia Lista: Examen PTCB
Live on the App StoreA practice exam for the US Pharmacy Technician Certification (PTCB).
View on the App Store →
Hipoteca Lista: Examen NMLS
Live on the App StoreA weekly study plan for the NMLS mortgage loan officer license exam.
View on the App Store →// Coming soon
On the way
Licencia Fácil: Bienes Raíces
In review with AppleSpaced-repetition study cards for the Florida real estate license exam.
Ritmo y Sabor
Launching soonMusic trivia across Latin genres, from salsa to reggaetón.
Refranero Diario
Launching soonA daily word puzzle built around Spanish proverbs.
// Websites
Websites that work as hard as the apps.
Same build system, same honesty about what's live — four real sites, four real businesses.
Booking site for a residential cleaning company — calls turned into booked jobs.
Visit →
Product catalog for an artisan textile business in Chile — browse and order without ever leaving WhatsApp.
Visit →
Ordering site for a Chilean home bakery — the full menu, ready to order for any celebration.
Visit →
Marketing hub with a live demo for the PAES S.O.S. exam-prep apps.
Visit →// Talk to David
Want to see this applied to your business?
30 minutes, no pitch deck — a straight look at your operation from someone who spent twenty years running them, and what sealing the leak could be worth.