Hartmann Studios is my Android studio: 42 apps live on Google Play and 9 more waiting on Google's review. Games, on-device AI, homelab tools and everyday utilities.
On-device AI
Apps whose AI features run on the phone itself.
LiveCaptionN – Live Captions
Free live captions and translation that float over any app, video or call. Offline on the phone, or on your own Whisper server.
Dosely: GLP-1 & Dose Tracker
Private GLP-1 injection tracker: 6-site rotation, medication level curves, pen stock, weight, Wear OS sync and an offline AI coach. Data stays on the phone.
Shape & Shade: Face Shape
Find your face shape and your best colors in seconds. Nothing is uploaded.
ScamRadar: AI Scam Detector
On-device AI catches scams in texts, voicemails & notifications. Free.
AI Social: On-Device AI Feed
AI-generated social feed — offline, no account, no strangers. Just for you.
CaptionBurn: Video Captions
On-device auto-captions burned into video with built-in translation.
Dreamloom: AI Dream Journal
Private dream journal: record by voice or text, on-device AI reads the meaning.
Morrowkept: Audio Journal
Private audio journal with on-device transcripts, local AI, and Wear OS.
NutriSnap: AI Calorie Tracker
Snap meals for instant calories & macros. 100% offline AI, private.
Provision: AI Meal Planner
On-device AI meal plans, real grocery prices, and a budget tracker.
TextPilot AI: Smart Messaging
Clean SMS app with AI smart replies & web browser access to texts.
WarmWord: AI Mental Health
Private on-device AI companion & journal. Available in your language.
For homelabbers and makers
Self-hosted servers, 3D printers and local AI.
OctoPulse: OctoPrint Companion
Control your OctoPrint 3D printer from your phone. Monitor & print on Wi-Fi.
Ollama AI Chat
Ollama AI chat client — remote server or fully offline on-device models.
Grocy Fridge Scanner
Snap your fridge. On-device AI updates your Grocy stock in seconds.
MeshTalk: Bluetooth Mesh Chat
Chat, talk & AI over Bluetooth mesh. No internet, no accounts, offline.
PixelDream: Offline AI Images
Private, offline AI image generator. Your prompts and pictures never leave.
Aria: On-Device Assistant
Private voice AI assistant — offline, on-device, no cloud. Optional web search.
Pocket Assistant: AI Organizer
Local AI organizer — bills, notes, chat, tasks & reminders on-device.
Travel and on the road
TrailSage: AI Road Trip Guide
Offline GPS audio tour guide with on-device AI storytelling.
SkyPulse: Live Flight Tracker
Track live flights overhead — aircraft, airports & smart alerts.
CrowdTransit: Bus & Train
Free live transit stops, schedules & reviews. Track buses & trains nationwide.
CruiseWatch: Fare Drop Alerts
Track cruises you've booked. Get alerted and claim refunds when fares drop.
AuraCast Weather
Your weather, narrated — on-device AI podcast + live radar. No account needed.
DriveVault: Dashcam
Privacy-first dashcam with GPS overlays, dual-camera & background recording.
Everyday tools
QR Scanner: Code Reader
Lightning-fast QR & barcode scanner. Scan, copy, share & history.
Flashlight: Torch + SOS
Fast torch, screen light, SOS, shake toggle, widget & quick settings.
Sticky Notes: Quick Widget
Simple sticky note widget for your home screen. Quick notes & lists.
File Manager: Browse & Sort
Free file manager — browse, organize, copy & manage all your files.
Photobooth: Event Camera
Turn any Android device into a fun event photo booth with prints.
Owefolk
Shared tabs, clear friendships. Split expenses and settle up in your language.
TradeCoach AI – Stock Coach
AI-powered stock trading coach with lessons, portfolio tracking & market data.
TipsyBuddy: Drink & BAC Track
Track drinks, estimate BAC & sober time, share live location & get home safe.
Games and fun
Gizmo Gunners: Robot Shooter
Voiced story, heroes with powers, AI squad mates. A bright 3D robot shooter.
Pawdub: Funny Pet Translator
Your pet gets funny movie subtitles in 59 languages. Real bark & meow detection.
Knightfall: AI Chess Coach
Play chess against Stockfish AI with Gemma 4 coaching, online, or web.
Pixel Fish Tank: Virtual Pet
Cozy virtual pet game — feed, clean & customize your pixel fish.
Arcane Dark
AI Dungeon Master on your phone. Solo offline & private, or co-op with friends.
Amoura – AI Girlfriend App
AI girlfriend & AI boyfriend chat companion – private, on-device, always yours
Faith
ScriptureSearch
ScriptureSearch Find and compare verses from different translations of the Bible
Coming soon to Google Play
Finished and in Google’s review.
Daycare Dons: Diaper Empire
Toy water pistols, nap-time capers and a daycare underground. Rise to BABY BOSS!
Wild Lens: Jungle Rescue
Photograph jungle wildlife, expose a poacher ring and free animals with Pip.
Nightsay: Snore & Sleep Talk
Snore & sleep talk recorder with clips, a Sleep Score and insights on your phone
EventCrew: Find Your Group
Keep your group together at concerts and festivals. Friends join from a link.
ADHD Focus Companion
One task, one timer, no shame. A focus companion for ADHD adults with kind nudges and a lock-screen timer.
EV Charge Tracker
Charging cost and efficiency done right: home vs public split, mi/kWh, battery health, service reminders.
Pantry Tracker
Scan it, date it, never waste it. Barcode entry, expiry alerts and a shopping list that restocks the pantry.
Gig Mileage Tracker
Automatic mileage for rideshare and delivery drivers. No trip caps, one-tap classify, IRS-ready CSV/PDF.
Symptom Diary
One-tap migraine and IBS diary that correlates episodes with sleep and steps from Health Connect.