Company Javier Alvarez created these great apps:
Credify - Comparador de créditos hipotecarios y calculadora de amortizaciones de hipotecas en creditos bancarios, waveen~ No-Ad Isochronic tones and binaural beats for brainwave entrainment, waveen~ Isochronic tones and binaural beats for brainwave entrainment, and others..