High-quality apps designed for the Apple ecosystem. Built with passion for great user experience and attention to detail.
Indie iOS apps crafted with care. From puzzle games to productivity tools — built for iPhone, iPad, and Mac to make your day a little smarter and more fun.
Safari dark mode extension. Transform any website into a beautiful dark experience. Reduce eye strain.
Create new files directly from the context menu. Text, Markdown, HTML, JSON, Python & custom types.
Smart stretch reminders for desk workers. Guided exercises prevent neck pain, back pain & RSI.
Track your habits with gamification. Build streaks, earn achievements, and become your best self.
Compassionate sobriety tracker. Live streak timer, urge rescue breathing, daily promises & milestone celebrations.
One line a day journal. Track your mood, build writing streaks, and relive your year with Year in Review.
Find and remove duplicate photos, screenshots, contacts, calendar events, and files. Reclaim your storage.
Universal file converter. 38 formats — documents, images, audio, video, data. Drag & drop, 100% offline.
Merge single-sided scanned pages into correctly ordered double-sided PDFs. Perfect for scanners without duplex.
Keep your Mac awake. Smart timers, app triggers, and scheduling prevent sleep during downloads and presentations.
AI-powered calorie and nutrition tracker. Describe your meal, get instant macros, nutrition score, and weekly trends.
Real ⌘X cut and paste for files. Move files with a keyboard shortcut instead of drag and drop.
Split bills fairly with friends. AI-powered receipt scanning makes splitting expenses easy and accurate.
Hilarious party game! Two players describe a word by alternating single words while others guess.
Party game of deception! One player doesn't know the secret word. Can you figure out who's clueless?
Cross-math number puzzle. Fill every row and column to the right sum. Daily challenge, four difficulties, no ads.
The classic number-merge puzzle, reinvented with combo multipliers, daily challenges, and earned rewinds.
Smart screen time blocker. Block distracting apps during focus time and break the endless scrolling habit.
Live earnings tracker. Watch your money grow second by second from your hourly or salary rate. Motivation that ticks.
Project your Bitcoin savings plan. Model dollar-cost averaging, see growth scenarios, and plan your stack.
Smart alarm and sleep optimization for shift workers. Personal sleep windows for early, late, and night shifts.
Home workout planner. Structured bodyweight programs you can do anywhere — no gym, no equipment, just progress.
Compress PDFs without losing quality. Drag, drop, done. Smart compression that keeps your documents sharp.
Block puzzle on an 8×8 board. Drop shapes, clear lines, beat your high score. Simple to learn, hard to master.
Colorful stacking puzzle game. Match colors, build towers, and challenge your reflexes in this addictive arcade game.
Transform any website into a beautiful dark experience. Reduce eye strain, save battery on OLED screens, and browse comfortably at night.
Stop neck pain and back pain from your desk job. Smart reminders + guided exercises designed for office workers, remote workers & gamers.
Remind Me
Every 45 min
🔥 8 Day Streak!
Build better habits with gamification. Track your daily routines, build impressive streaks, and earn achievements as you level up your life.
Free up storage space by finding and removing duplicate photos, screenshots, contacts, calendar events, and files. Smart detection algorithms make cleanup effortless.
Split bills fairly with friends using AI-powered receipt scanning. No more manual calculations - just scan, assign, and share who owes what.
Bring fun to any gathering with these hilarious party games designed for friends and family.
Two players must describe a secret word to their team - but they can only say one word each, taking turns! Creates hilarious moments as descriptions go in unexpected directions.
Everyone knows the secret word except one person - the Clueless One! Players take turns giving clues while trying to figure out who's bluffing.
The ultimate social deduction party game! One player doesn't know the secret word and must bluff their way through. Can you spot who's clueless?
A colorful, addictive stacking puzzle game that tests your timing and reflexes. Build the tallest tower by perfectly aligning blocks as they swing back and forth.
The cross-math number puzzle for iPhone and iPad. Fill every row and column so the sums match. A fresh daily challenge, four difficulty levels, no ads — pure brain training.
CalcGrid
Fill in the missing number!
I'm an iOS developer passionate about creating apps that make a difference. My focus is on excellent UI/UX, high code quality, and apps that feel native to the Apple ecosystem.
Also working as a C#.NET Developer at JTL-Software-GmbH.
Published Apps
SwiftUI Native
Wide Compatibility
Helpful how-to guides to get the most out of your devices.
Compare Preview, online tools, and native apps for shrinking PDF file sizes without losing quality.
📁5 ways to add a "New File" option to your right-click menu — from Terminal to native apps.
☕System Settings, Terminal caffeinate, and smarter alternatives to prevent your Mac from sleeping.
🔄PDF, DOCX, MP4, MP3, PNG, and more — the best ways to convert files without uploading them online.
✂️Why ⌘X doesn't work for files and how to get real cut-and-paste functionality.
📑How to combine single-sided scans into properly ordered double-sided PDF documents.
🧾Stop doing receipt math. The smartest ways to split expenses with friends.
🖼️Built-in Duplicates album vs. dedicated cleaners — how to actually free up storage.
💪Why tracking your sober days works and what to look for in a recovery companion app.
🧘Quick stretches for neck, shoulders, and back that you can do right at your desk.
📱Proven strategies to break the scrolling habit and take back control of your attention.
🍎TDEE, macros, and practical tips to start tracking your nutrition the right way.
🏋️A complete 4-week beginner plan — no gym, no equipment, just your body.
✏️The science behind micro-journaling and how writing one line daily can change your life.
🎉The most fun group games to play at parties — no board required, just one phone.
Download my apps and see how they can improve your productivity, health, and fun.