Aquarium water test log apps for iPhone: 8 compared
Eight iPhone apps for logging aquarium water tests compared: freshwater or reef, test strip scanning, species database, account, and what each costs.
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Writing
Notes from building Flutter and iOS apps: rendering, animation, performance, and shipping my own apps to the App Store.
Free parking in Madrid, Barcelona and Valencia: 7 apps compared
Most Spanish parking apps help you pay, not park free. Seven apps compared for Madrid, Barcelona and Valencia, and which one maps free street parking.
Pet health record apps for iPhone: 7 compared
Seven iPhone apps for your pet's vaccinations, vet visits and documents compared: which work without your vet joining, store your own scans, and cost.
Sourdough planner apps that work back from bake time: 7 compared
Seven iPhone sourdough apps compared: which plan backwards from when you want bread, adjust for kitchen temperature, keep steps out of the night, and cost.
TCG card scanner apps that price your collection: 8 compared
Eight iPhone apps that scan trading cards and value a collection, compared: exact printing, scan limits, where prices come from, account and cost.
A free aquarium water test log app for iPhone
Aquarium - Log Tracker is a free iPhone app for logging water tests, water changes and maintenance for freshwater and saltwater tanks. No account needed.
A quiet time app and study timer that locks distracting apps
QT is a free iPhone app that starts each study session with a one-minute quiet time: one Bible verse, one line of reflection, then your chosen apps lock.
A quit weed app with a day-by-day withdrawal timeline
Reset is an iPhone app for quitting weed or taking a tolerance break: a day-by-day withdrawal timeline, milestones and money saved, with no sign-up.
App blocker you unlock with push-ups: Pull to Refresh
Pull to Refresh is a free iPhone app that locks apps you choose when your allowance runs out. Push-ups, squats or pull-ups counted by the camera buy time back.
Count calories from a photo on iPhone: how accurate is it?
MealMate is an AI calorie counter for iPhone, free to download: photograph a meal and it estimates calories, carbs, protein and fat for each food on the plate.
Counting reps with Vision and locking apps with Screen Time
How I count push-ups from Vision body pose with one state machine, and what Screen Time's shields, monitor callbacks and 20-activity limit really allow.
Free parking app for Europe: Easy Find Parking for iPhone
Easy Find Parking is a free iPhone and iPad app that maps free street parking kerb by kerb in Berlin, Madrid, Barcelona, València and Kraków, plus car parks.
Free video editor for iPhone and iPad with no watermark
PremierCut is a free video editor for iPhone, iPad and Mac with no account, no ads and no watermark. Editing, effects and exports happen on your device.
Identifying card printings on device with Vision and OCR
Artwork matching picked the right card printing 89.5% of the time even given the correct number. How I combine Vision feature prints and OCR, and when to ask.
Mapping free street parking from open data with PostGIS and MapKit
How I turn cities' paid-parking data into likely-free kerbs with PostGIS, why OSM parking tags fail outside Germany, and how SwiftUI's Map draws them.
Offline-first aquarium log in Flutter with Drift and Supabase
How I modelled water tests in Flutter: blank readings that never become zero, free ammonia from pH and temperature, canonical units, and Drift-to-Supabase sync.
Pet health record app: vaccinations, vet visits, reminders
PawVault is a free iPhone and iPad app for your pet's health records: vaccinations, vet visits, medications and documents, with reminders and a vet PDF.
Planning sourdough backwards in Swift, with quiet hours
How Proofday plans a sourdough bake backwards in Swift: a temperature model, a dynamic program on a 5-minute grid, quiet hours and Live Activity limits.
Scan trading cards and see what they're worth with Foilcase
Foilcase is an iPhone app that scans trading cards, identifies the exact printing, prices them daily and tracks what your collection is worth. No scan limits.
Sourdough schedule planner that works back from bread time
Proofday is an iPhone sourdough planner. Tell it when you want bread and it schedules every feed, fold and bake around your kitchen temperature and sleep.
How to play animated SVG in Flutter (flutter_svg won't)
flutter_svg shows animated SVGs as still pictures. svg_animate plays their SMIL and CSS @keyframes in Flutter, in pure Dart. How it works, and the alternatives.