Ralf Koch

Ralf Koch

Building apps that matter.

Badges

Tastemaker
Tastemaker
Gone streaking
Gone streaking

Maker History

  • NutCase
    NutCaseLog your nuts. Know your limits.
    Aug 2026
  • SurgeHiit
    SurgeHiitThe HIIT timer that runs the workout for you
    Aug 2026
  • ScolioEx
    ScolioExPhysio-built scoliosis workouts. Free. Honestly, the best.
    Aug 2026
  • LexiChain
    LexiChainSpell a hidden word letter by letter, beat the clock
    Jun 2026
  • App IconForge
    App IconForgeDrop one image. Get every Apple icon size, instantly.
    Jun 2026

Forums

23d ago

SurgeHiit - The HIIT timer that runs the workout for you

Eight ready-to-go HIIT workouts or build your own in our drag-and-drop builder. Surge calls every interval out loud, syncs to Apple Watch with haptics and heart rate, saves workouts to Health — and never interrupts you. Free: two workouts + two custom. Premium: 14-day trial, then yearly or lifetime.

20d ago

NutCase - Log your nuts. Know your limits.

Most nutrition apps only tell you what's good for you. NutCase tells you where the ceiling is. Log what you eat, see it against your daily values, and browse 13 nuts with sourced nutrition, benefits, risks and real limits — an ounce of Brazil nuts is 988% of your selenium DV, so the app says 1–2 per week, not "eat more nuts." Per-nut allergy severity blocks risky logging. iPhone, iPad, Mac and Watch. Free to track and browse. Educational, not medical advice.

2mo ago

LexiChain - Spell a hidden word letter by letter, beat the clock

LexiChain turns spelling into a race. You get a hidden root word and rebuild it one letter at a time — but every letter must be answered with a different word from the same category. TOMATO in Vegetables? Name a vegetable starting with T, then O, then M… before the timer runs out. Three difficulties, 38 categories, and local Wi-Fi/Bluetooth duels with no servers. No ads, no tracking, plays offline. Free forever, with optional packs.
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