SleepWhat Is a Recovery Score? How NeuroSleep Measures Your Sleep
NeuroSleep's recovery score breaks down into five transparent factors — not a black-box number. Here's how it works.
Altivra
Altivra BlogBuilding AI apps
Building AI apps
for everyday life.
Notes from an independent iOS studio — how we design, ship, and iterate on AI-powered apps for documents, expenses, fitness, sleep, and plant care.
AI on iOSApp developmentProduct designPrivacy-firstSignDeskExpenseDeskFitMindNeuroSleepPlantMind
From the Altivra studio
Altivra is a UK-based independent iOS app studio founded by Dawid Jelski. We build native Swift apps with on-device AI, HealthKit integration, and privacy-first architecture — then share what we learn along the way.
Expect deep dives on app development, AI product design, App Store compliance, and practical guides for the problems our apps solve.
Latest articles
Guides & product notes
24 articles
Sleep
SleepNeuroSleep Pro Pricing: No Free Trial, What You Get
NeuroSleep Pro is £4.99/month or £29.99/year through the App Store. You're charged when you subscribe — here's what's included.
Altivra
StudioThe Altivra App Ecosystem: Four AI iOS Apps, One Studio
SignDesk, FitMind, NeuroSleep, and PlantMind — how four focused AI apps share one vision from independent iOS studio Altivra.
Altivra
SleepBest Sleep Tracking Apps for iPhone in 2025: What to Look For
Apple Watch or iPhone only — compare sleep tracking apps for iPhone, recovery scores, and on-device coaching. Where NeuroSleep fits in.
Altivra
Plant CareHouseplant Watering Schedule: How AI Reminders Keep Plants Alive
Overwatering kills more houseplants than neglect. Learn how AI-powered care schedules and reminders in apps like PlantMind stop guesswork.
Altivra
AIAI Contract Review on iPhone: What Signing Apps Can (and Can't) Do
Can an iPhone app review your contract with AI? What SignDesk's Contract Check actually provides — and why it is not legal advice.
Altivra
ProductivityHow to Scan and Sign Documents on iPhone Without a Printer
No printer? No problem. Step-by-step guide to scanning paper documents, signing PDFs, and sending them back — entirely from your iPhone.
Altivra
App DevelopmentPrivacy-First iOS App Design: Principles Behind Every Altivra App
Privacy is not a footer link — it is a product decision. How Altivra designs iOS apps with on-device storage, minimal permissions, and transparent policies.
Altivra
App DevelopmentHow Altivra Builds iOS Apps: Native Swift, Privacy-First AI
Inside an independent UK iOS studio — how Altivra designs, builds, and ships AI-powered apps with SwiftUI, HealthKit, and App Store compliance built in from day one.
Altivra
AIOn-Device AI on iPhone: What It Is and Why It Matters
On-device AI keeps your photos, documents, and health data private while still delivering smart features. Learn how it works on iPhone and why Altivra builds apps this way.
Altivra
SleepHow to Improve Your Sleep Recovery Score on iPhone
Sleep recovery scores help you train and work smarter — not just sleep longer. Learn what recovery metrics mean on iPhone and how to improve them over time.
Altivra
Plant CareAI Plant Identification Apps Compared: Which iPhone App Is Best?
From mystery houseplants to yellowing leaves — compare AI plant identification and care apps for iPhone and learn what makes PlantMind different.
Altivra
ProductivityBest PDF Sign Apps for iPhone in 2025: How to Choose
Need to sign a PDF on iPhone? Compare the best PDF fill-and-sign apps for contracts, receipts, and everyday documents — plus what to look for before you download.
Altivra
Weight LossBest Daily Workouts for Fat Loss: Science-Backed Routines That Actually Work
Discover the most effective daily workouts for fat loss. Learn which exercises burn the most fat, how to structure your routine, and why consistency beats intensity.
FitMind Team
FitnessHow Many Steps to Burn 500 Calories? The Complete Guide
Discover exactly how many steps you need to burn 500 calories. Learn the science behind step counting, factors that affect calorie burn, and practical tips to maximize your results.
FitMind Team
TechnologyBest AI Workout Apps in 2025: Complete Comparison Guide
Discover the top AI-powered fitness apps of 2025. Compare features, pricing, and effectiveness to find the perfect workout companion for your fitness goals.
FitMind Team
FitnessHow to Burn 200 Calories Fast: 15 Quick Workouts That Actually Work
Discover the fastest ways to burn 200 calories with these proven workouts. From high-intensity intervals to quick home exercises, find the perfect routine for your schedule.
FitMind Team
NutritionFood Industry Secrets: What They Don't Want You to Know About 'Healthy' Foods
Uncover the shocking truths about how the food industry manipulates products, labels, and marketing to make unhealthy foods appear nutritious.
FitMind Team
ScienceMind-Blowing Fitness Facts That Will Change How You Work Out
Discover shocking scientific facts about exercise, metabolism, and the human body that challenge everything you thought you knew about fitness.
FitMind Team
WellnessThe Dark Truth About 'Healthy' Habits: What Science Really Says
Discover which popular 'healthy' habits are actually counterproductive, and learn what research reveals about optimal wellness practices.
FitMind Team
NutritionThe Dark Side of Diet Culture: 8 Shocking Food Myths Debunked
Uncover the truth behind popular diet myths that millions follow, and learn why some 'healthy' foods might be sabotaging your goals.
FitMind Team
Workouts10 Shocking Workout Myths That Are Actually Hurting Your Progress
Discover the most common workout myths that millions of people believe, and learn the truth that could transform your fitness results.
FitMind Team
TechnologyHow AI-Powered Workouts Work: The Science Behind FitMind
Discover how FitMind's AI creates personalized workouts that adapt to your progress and goals. Learn about the technology powering your fitness transformation.
Dr. Sarah Chen
Getting StartedGetting Started with FitMind: Your Complete Guide
Learn how to get the most out of FitMind with our comprehensive getting started guide. From setting up your profile to your first AI-generated workout.
FitMind Team