Apps & Projects

H.I.S. Hundezentrum

Companion app for the H.I.S. Hundezentrum dog school - course catalogue, appointment calendar, and a study mode for the German dog-owner licence exam.

Blaulicht

Signal app for emergency responders: flashing-light mode, alert tone, and a keep-awake display on the way to a call-out.

Hub

A private, BlackBerry-10-inspired message hub that bundles email, Telegram, and Microsoft Teams into one feed.

Netwatch

A network diagnostics app: device scanner, port scanner, traceroute, subnet calculator, Bluetooth scanner, and speed test in one place.

Contract Clock

Never miss a notice deadline: add your contracts, see every deadline, get reminded in time. Write, sign and send the cancellation letter and keep proof of dispatch – no account, no cloud.

CrossDevice Drop

Text, links and files from your phone to your laptop, tablet or browser – end-to-end encrypted, with expiry, via your own server. No more self-chats.

Decision Ledger

Record the decision, options and assumptions – and review them deliberately later. With a criteria matrix, review dates and learnings. Offline, no account.

Doc Memory

Scan, search, track deadlines: scan now and find every detail later – on-device text recognition, full-text search and deadlines you confirm. Encrypted, no account, no cloud.

Emergency Pack

Offline emergency folder: emergency contacts, document copies, medications and action cards – encrypted, no account, with a one-tap emergency call. No diagnosis, no cloud.

FamilyCare Handoff

Calm, confirmed care handoffs: observations, appointments and tasks in one daily handoff – confirmed by the person who takes over next.

FieldProof

Signed service reports: document on site, get it signed, deliver the report right away. Before/after photos, required checklists and defects – even offline.

FollowThrough

Reminders that stick: normal reminders disappear. FollowThrough stays active until it is clear: done, started, rescheduled or blocked. No account, no cloud.

Home Inventory Snap

Home inventory for insurance: photograph room by room, confirm suggestions, add value and receipt. When something happens, your list for the insurer is ready.

HomeOps

Home maintenance & warranty: snap the rating plate and you are done – device, maintenance, warranty and receipts in one place. No account, no cloud.

Incident Chronicle

Incident timeline & postmortem: log while the incident is live – get a trustworthy chronology afterwards. Timeline, decisions, evidence and a postmortem draft. Offline, no account.

Maintenance Rhythm

Upkeep that follows real use: maintenance restarts when it is really done – by time, operating hours, mileage or season. With checklists, consumables and a record you can share.

ManualShelf

Manuals, parts & maintenance: scan the rating plate – manual, filters and maintenance plan are right there with the appliance. Reminders before descaling, a shopping list for parts.

Meeting Actions

Private meeting action items: record a meeting, transcribe it on your device, confirm the suggested action items – with owner and due date. No account, no cloud, no AI service.

MoveProof

Move-in & move-out checklist: photograph room by room, mark defects right on the photo, record meters and keys, sign together – as a verifiable PDF.

Network Change Ledger

Network changes, with proof: scan, capture the state, change, verify – and document the rollback with proof. For ports, VLANs and IPs. Offline, no account, encrypted export included.

People Journal

Remember people & promises: note a meeting in 30 seconds, walk into the next one fully briefed – topics, promises and what better not to bring up. Private, no account, no cloud.

PetCare Circle

Who fed the pets today? Family, flatmates and sitters see at a glance what your pet has already had today – food, walks, water, medication. Nothing twice, nothing forgotten.

Pickup Pass

Safe school & daycare pickups: a clear daily plan, approval by both parents and a pickup code the daycare or school can check – no chat chaos, no back-and-forth.

PrivateScribe

Private on-device transcripts: record conversations and turn them into text right on your device – even offline. Optional end-to-end encrypted sync via iCloud or Google Drive.

Reading Inbox

Save. Read offline. Keep it. Your reading list belongs to you: share from any app, read offline without ads, highlight – and take everything with you as OPML or Markdown. No account.

Repo Pocket

Read & mark code offline: load a repo once, read it anywhere – file tree, syntax colours, README, full-text search, bookmarks and snapshot diffs. On the train or in the server room.

Return Window

Return deadlines & refunds: scan the receipt, see the return deadline, decide in time – keep it or send it back. With proof of shipping and refund tracking. No account.

SceneRecall

Which movie was that scene? Describe the scene, rank candidates and remember the hit. For everyone who remembers a scene but not the title or the episode.

ShiftBridge

Shift handover you can prove: handovers in three minutes – open, owned, confirmed. The next shift confirms every critical point, the rest escalates. No account, no cloud.

SoloPortal

Client approvals made simple: send a project link, get feedback, document approval. Clients comment and approve – no account, no email ping-pong.

ToolCircle

Lend tools with QR loan slips: photo, person, return date – always know where your tools are. Hand over with a QR loan slip, send a friendly reminder, check the return. No account.

Travel Claim Binder

Evidence for travel disruption: flight delayed, train cancelled, bag lost? Capture the disruption, receipts and contacts in minutes – and export a complete evidence package as PDF or ZIP.

Vehicle Passport

Service book, MOT & sale file: every service and every part in a vehicle history that sells – odometer, defects, inspection reminders and a sale file as PDF. No account.

Warranty Guard

Warranty & receipt tracker: scan the receipt, see the deadline, get reminded in time. When something breaks, receipt, serial number and history are ready as a PDF. No account, no cloud.

Cosmo Tilt

An original pinball game in the style of campy 1950s alien-invasion B-movies.

Minesweeper

Classic Minesweeper with the three familiar difficulty levels: beginner, intermediate, and expert.

Snake Rewind

Classic Snake in the style of old Nokia phones - with levels, power-ups, and unlockable color skins.

Solitaire Primusinterpares

Classic Klondike solitaire with several visual themes and a multilingual interface.

Sudoku Primusinterpares

Classic Sudoku with a notes mode, multiple difficulty levels, and best-time tracking.

VoidWave

An original retro wave shooter - the pilot project of an arcade game series.

Zoodoku

A calm logic puzzle with zoo animals instead of numbers - find exactly one animal per row, column, and colour region.

After the Flood

A narrative survival game about a family fleeing across a flooded world - with difficulty levels and three endings.

Crown & Coven

A game of political intrigue between rival witch covens at the royal court - twelve moons, multiple endings.

Cold Case Network

A cold-case detective story: solve a decades-old murder case across three timelines from 1998 to 2026.

The Last Broadcast

Seven nights as a radio operator during a storm surge - tune in signals, verify reports, and decide what goes on air.

Time Loop Hotel

A time-loop mystery in a grand hotel: relive one stormy night again and again to save everyone in the end.

Air-Cooled Garage

A garage simulation: diagnose and repair three fictional classic-car models, with 30 parts, 25 possible faults, and your own toolset.

Arena of Echoes

Asynchronous tactics: build a team, write a battle plan, and face recorded "echoes" of other runs - one season, eight challenges, entirely offline.

Corsair Covenant

A pirate RPG: lead a loyal or mutinous crew across a living ocean - a free-port hub, two large sea regions, six missions, and six enemy types.

Dice Workshop

A dice-crafting workshop: forge your own dice, unlock tools and relics, and fulfil customer orders.

Dog School: Second Chance

A management RPG: run a second-chance dog shelter, balancing twelve cases, eight events, and fourteen training methods.

Five-Minute Mystery

Bite-sized detective cases - read the case, weigh the clues, name the culprit.

House of Embers

A multi-generational dynasty simulation: weather twelve crises, raise eight buildings, and leave behind a legacy of blessings and burdens.

Incident Commander

An IT crisis simulation: contain cascading service outages as incident commander before the damage escalates.

Incident Commander: Blackout

The Incident Commander sequel: coordinate four resources and six response roles across twelve events during a citywide blackout spanning three regions.

Oceanbound Exodus

Underwater survival: explore the sunken city and the Black Trench, salvage materials, and get the mobile home "Exodus" to safety before the flood.

Pocket Heist Crew

A turn-based heist tactics game: pick your crew, plan your routes, execute simultaneously, and outsmart the guards - eight missions, six roles, three locations.

Pulseball League

A tactical sports game: invent plays for a futuristic team sport and compete against recorded ghost strategies in an asynchronous offline league.

Sea of Dust

A sandship adventure: sail a land-ship across an endless desert ocean, trade, explore ruins, and upgrade your ship.

Soundweaver

A music adventure: reshape the world by composing its lost sounds - eight rooms of sonic puzzles.

Tiny Gods: Fallen Pantheon

A god game: lead a forgotten deity back to power across three chapters - win believers, work miracles, and outmaneuver rivals.

Tactile Puzzle Box

A technical prototype built with Expo/React Native: exploring a tactile puzzle-box concept - a stack test rather than a finished game so far.