Projects
Seven apps, and their small print
I design, build and maintain these on my own, in Kotlin and Jetpack Compose: no ads, no analytics, no backend to trust. Each has its own page, privacy policy and terms.
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Cachette
For Android 11 and later. Paid on Google Play.
An encrypted vault for photos, videos and documents. The pattern you draw is the key — not a lock in front of a gallery. No network permission, no account, no recovery.
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HoraLuz
For Android 8 and later, in peninsular Spain. Free; HoraLuz Plus is a one-time unlock.
A glanceable PVPC timetable: green is cheap, red is expensive, and the cheapest window of the day is already marked. Today’s chart is free. The heatmap in the notification shade, tomorrow’s prices and the reminders are HoraLuz Plus. No account, no ads.
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Mercè
For Android 8 and later, in Barcelona. Free; Mercè Pro is a one-time unlock.
A companion guide to La Mercè, Barcelona’s festival: the whole programme by day and strand, what’s on right now, and search across every event, place and artist. Live distance and compass bearing to each venue, reminders that re-arm themselves when an event moves, and calendar export are Mercè Pro. Català, Castellano and English, offline, no account.
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₿launcher
For Android 8 and later. Free, with a one-time unlock.
Digital minimalism, Bitcoin maximalism. A text-only home screen — your pinned apps, the time, the live BTC price — with a search that launches on the first unique match, groups behind a single word, and three ways to keep an app private: hidden, stealth, or locked behind biometrics.
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Fewest
For Android 8 and later. Free, with a one-time Premium unlock.
A minimalist launcher built around opening distracting apps less. A quiet home screen, deliberate friction where it helps, and the rest of your apps kept private — with a view of what they do when you’re not looking. It has its own site at getfewest.app.
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GPS Genius
For Android 8 and later. Free, with a one-time unlock.
A GNSS diagnostics app that answers the question every other one leaves to you: is this position any good? A plain-language verdict and saved places in Simple mode; the metric matrix, sky plot, per-signal detail and nine diagnostic tools in Pro. Foreground only, and nothing leaves the phone.
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Soonest
For Android 8 and later. Free software, coming soon to Google Play.
A private calendar where far-away days stay quiet and what’s close grows warmer: amber when it’s soon, vermilion when it’s now. Type an event the way you’d say it; share when you’re free as plain words. It works with the calendars already on the phone. No internet permission, no account, no ads — free, and free software under the GPL.
All the live ones are on my Google Play developer page.