Blunt Glucose Spikes. One Step at a Time.

SugarLock locks distracting apps until you walk after mealsβ€”turning screen time into step time and insulin spikes into insulin control.

Backed by research: Post-meal walking significantly reduces glucose spikes

The Problem

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Blood Sugar Spikes

After meals, your blood sugar can spike dramatically, leading to insulin resistance over time.

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Screen Time Addiction

We know we should walk after meals, but we get distracted by our phones and forget.

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Boring Tracking Apps

Traditional health apps are passive and boring. We start using them but quickly stop.

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Lack of Motivation

Without immediate incentives, it's hard to build the habit of post-meal walking.

The Science Behind Post-Meal Walking

Research shows that walking within 30-60 minutes after a meal helps muscles use glucose, preventing insulin spikes. Multiple studies have demonstrated the significant benefits of post-meal walking for blood sugar control.

UCLA Health Study

A five-minute walk after meals helps moderate blood sugar levels, reducing sudden spikes and drops that can increase cardiovascular risk and contribute to Type 2 diabetes. This brief intervention is particularly effective because it occurs during the critical postprandial period when blood glucose levels peak.

View full research here β†’

George Washington University Research

A study published in Diabetes Care found that three 15-minute walks after meals were as effective at reducing 24-hour blood sugar levels as a single 45-minute walk. The research showed that walking after dinner was particularly effective in lowering blood sugar levels, making post-meal walking a more practical and efficient approach to glucose management.

View full research here β†’

NCBI Research Review

Systematic reviews of post-meal exercise research demonstrate that light-intensity walking after meals significantly attenuates postprandial glucose levels compared to prolonged sitting. Studies show that even brief walks of 2-5 minutes after eating lead to a notable decrease in blood sugar levels, with more gradual rises and falls compared to sedentary behavior.

View full research here β†’

How It Works

1

Snap a Photo

Take a photo of your meal when you finish eating.

2

Analyze Glycemic Index

Our app automatically analyzes the Glycemic Index of your meal.

3

Apps Lock

Distracting apps lock until you complete your step goal.

4

Walk After Meal

Complete your post-meal walk within the 2-hour quest window.

5

Unlock & Build Habits

Unlock your apps and watch your healthy habits build automatically.

Features

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Food Photo Recognition

Simply snap a photo of your meal. No manual logging required.

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Glycemic Index Analysis

Automatic analysis helps you understand your meal's impact on blood sugar.

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Smart App Blocking

Apps stay locked until you complete your post-meal step goals.

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Post-Meal Step Tracking

Track your steps within the optimal 30-60 minute window after eating.

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Progress History

See your progress over time and watch your healthy habits develop.

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HealthKit Integration

Seamlessly syncs with Apple Health and your fitness tracker.

Why SugarLock Works

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Science-Backed

Based on research showing post-meal walking reduces glucose spikes by 20-30%

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Gamified

Makes exercise fun by locking apps until step goals are met

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Automatic

No willpower needed - apps stay locked until you walk

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Timed

2-hour quests encourage immediate post-meal walking

Frequently Asked Questions

Everything you need to know about SugarLock

SugarLock helps you build the habit of walking after meals by locking your chosen apps until you complete your post-meal step goal. Here's how it works:

  1. Snap a photo of your meal when you finish eating
  2. App analyzes the Glycemic Index and sets an appropriate step goal
  3. Apps lock until you complete your walking goal within the 2-hour quest window
  4. Walk after your meal - SugarLock tracks your steps via Apple HealthKit
  5. Apps unlock automatically when you hit your step goal

The 2-hour time limit encourages you to walk within the optimal 30-60 minute window after eating, when post-meal walking is most effective for controlling glucose spikes.

SugarLock seamlessly integrates with Apple HealthKit to track your steps accurately:

  • Reads step data from Apple HealthKit (we only read, never write)
  • Real-time tracking of your post-meal walking progress
  • Works with any device that syncs to HealthKit (iPhone, Apple Watch, fitness trackers)
  • No manual logging required - steps are tracked automatically

You can revoke HealthKit permissions at any time through your device's Settings app. The app will prompt you to grant HealthKit access when you first set up a quest.

The food photo analysis uses AI/ML models to estimate Glycemic Index based on visual recognition:

  • Provides estimates - not medical-grade testing, but helpful guidance
  • Works best with clear, well-lit photos of your meal
  • May vary in accuracy for complex meals or unusual combinations
  • For informational purposes - helps set appropriate step goals based on meal type

Important: The Glycemic Index estimates are for educational purposes only and should not replace professional nutritional advice. Always consult with a healthcare professional for medical guidance.

SugarLock uses iOS Screen Time API to block apps until you complete your post-meal walking goal:

  • Choose which apps to lock - select distracting apps you want to limit
  • Automatic locking - apps stay locked until you hit your step goal
  • Background operation - works automatically, no need to keep the app open
  • Emergency access - critical apps (phone, messages) remain accessible

The app blocking feature requires Screen Time permissions, which you'll be prompted to grant during setup. This ensures SugarLock can effectively help you build healthy habits.

If you don't complete your step goal within the 2-hour quest window:

  • Apps remain locked until you complete the goal (even after 2 hours)
  • Quest expires but you can still unlock apps by completing the steps
  • No penalty - the goal remains active until completed
  • New quests can be started for subsequent meals

The 2-hour window is designed to encourage walking during the optimal post-meal period (30-60 minutes), but you can still complete the goal later if needed. The important thing is building the habit of post-meal walking.

While technically possible to manually add steps in Apple Health, this defeats the purpose of SugarLock:

  • We track real movement - the app is designed to encourage actual walking
  • Health benefits come from real physical activity, not fake step counts
  • Self-defeating - manually adding steps won't help control insulin spikes

SugarLock is designed to help you build genuine healthy habits. The real benefit comes from actually walking after meals, which helps your muscles use glucose and prevents insulin spikes. We encourage honest use for your own health benefit.

Important Medical Disclaimer:

SugarLock is NOT a medical device and is NOT intended to diagnose, treat, cure, or prevent any disease. However, the app can be a helpful tool for building healthy habits:

  • Consult your doctor before making any changes to your diet or exercise routine
  • Not a replacement for medical advice, medication, or professional care
  • Research-backed - post-meal walking is supported by medical research
  • Complementary tool - works alongside (not instead of) medical treatment

If you have diabetes, pre-diabetes, or any medical condition, always consult with your healthcare provider before using SugarLock or making lifestyle changes. Do not adjust medications or treatment plans without medical supervision.

Your privacy and data security are our top priorities:

  • Encrypted data - all information encrypted in transit and at rest
  • HealthKit privacy - we only read step data, never write to HealthKit
  • No data selling - we never sell or share your health data
  • Local storage - some data stored locally on your device
  • Secure infrastructure - SOC 2 compliant cloud services
  • You control your data - delete your account anytime

For complete details, please review our Privacy Policy. You can revoke HealthKit permissions or delete your account at any time through the app or by contacting us at privacy@rudeus.io.

Currently, SugarLock is available for:

  • iOS devices - iPhone and iPad running iOS 14.0 or later
  • Apple Watch - compatible with Apple Watch (optional, for step tracking)
  • HealthKit integration - works with any device that syncs to Apple Health

Android support is not currently available. We're focused on providing the best possible experience on iOS first. If you'd like to be notified when Android support becomes available, please contact us at support@rudeus.io.

We're here to help! You can reach us through:

  • Email Support: support@rudeus.io
  • Response Time: We aim to respond within 24-48 hours
  • Refunds: Processed through the Apple App Store in accordance with Apple's refund policy
  • Technical Issues: Include your device model, iOS version, and a description of the issue

For refunds, please contact Apple Support directly through the App Store, or reach out to us and we can help guide you through the process. We want to ensure you have a great experience with SugarLock.

SugarLock is unique because it combines several features specifically for post-meal walking:

  • Post-meal specific - focuses on the optimal 30-60 minute window after eating
  • Food-aware - analyzes meals to set appropriate step goals
  • Health-focused - designed specifically for glucose control and insulin resistance
  • Gamified habit-building - makes post-meal walking automatic and fun
  • Research-backed - based on scientific studies about post-meal exercise

Unlike general fitness trackers (which just count steps) or app blockers (which use time-based blocking), SugarLock combines activity-based unlocking with post-meal timing to help you build a specific, health-beneficial habit.

Start Controlling Your Insulin Spikes Today

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