Comparison

Sun Day Tracker vs BetterLife AI Coach

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Sun Day Tracker

Monitor your daily vitamin D absorption from sunlight exposure. This straightforward application helps you keep track of your sun-related vitamin D intake.

Highlights
  • Track daily vitamin D intake
  • Sunlight exposure monitoring
  • Simple interface
  • Daily tracking
Features
Read full description

A simple app to track you daily vitamin D intake from the sun.

About

BetterLife AI Coach

Features
Read full description

Meet BetterLife: the ultimate AI-powered self-improvement companion designed to help you thrive. Whether you want to build lasting habits, track complex goals, or improve your mental resilience, BetterLife is your personalized guide to a healthier, happier you. Instead of juggling five different apps for your habits, finances, mood, and goals, BetterLife unifies your entire personal growth journey. At the heart of the app is your dedicated AI Coach—a highly intelligent, empathetic companion that learns about you, remembers your past conversations, and provides tailored advice based on proven Cognitive Behavioral Therapy (CBT) techniques. TRANSFORM YOUR DAILY ROUTINE • Personalized AI Coaching: Get daily nudges, gentle reminders, and direct advice tailored perfectly to your emotional state and life goals. Choose a coaching tone that fits your day: from Playful and Gentle, to Direct and focused. • Deep Memory AI: Your coach actually remembers your past conversations, milestones, and challenges, making every single interaction highly personalized and context-aware. HOLISTIC LIFE TRACKING • Unified Life Domains: Stop using fragmented apps. Track and manage your Health, Career, Finances, and Relationships all in one unified, beautiful dashboard. • Goal & Milestone Tracking: Break down your massive life goals into achievable, bite-sized milestones. Your AI Coach will keep you accountable every step of the way. • Habit Building: Form positive new habits and break old ones with intelligent tracking and encouraging check-ins. MENTAL HEALTH & RESILIENCE • Smart Mood Check-ins: Log your emotional state—whether you are feeling Great, Neutral, or Struggling. • Guided CBT Exercises: When you're having a tough day, your AI Coach will guide you through proven Cognitive Behavioral Therapy exercises to reframe negative thoughts and reduce anxiety. • Private & Secure: Your journal entries, personal goals, and coaching chats are completely private and secure. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Take control of your growth. Download BetterLife today and unlock the best version of yourself with the ultimate AI coach in your pocket. https://better-life-eight.vercel.app/terms.html https://better-life-eight.vercel.app/privacy

Screenshots

Sun Day Tracker1 screens
BetterLife AI Coach4 screens

Verdict

The call

The clearest difference is in-app purchases: Sun Day Tracker at none against BetterLife AI Coach's 3. Sun Day Tracker also leads on iOS requirement (17.0 vs 26.2). BetterLife AI Coach's advantage is update cadence (weekly vs monthly). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. BetterLife AI Coach sells 3 in-app purchases, starting at $8.99 per month. Sun Day Tracker asks for nothing beyond the download.

UpkeepUpdate frequency

Sun Day Tracker ships an update monthly, BetterLife AI Coach weekly. Both last shipped on November 5, 2026.

Scorecard3 real differences · 7 level
Sun Day Tracker versus BetterLife AI Coach: the parameters behind the verdict, then further details
ParameterSun Day TrackerBetterLife AI Coach
PriceFreeFree
Rating4.6 (28 ratings) — better—
Positive reviews83.3% of reviews—
Number of ratings28 — better—
Update frequencyMonthlyWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhoneiPhone, iPad — better
Requires iOS17.0 — better26.2
Further details — not scored
Size1 MB14 MB
Age rating4+17+
Developerpermissionless tech, llcJORG PEETZ

In-app purchases

None

Sun Day Tracker

No in-app purchases

3 purchases

BetterLife AI Coach

Subscriptions2
  • Monthly Sprint$8.991 Month
  • Annual Sprint$79.991 Year
One-time1
  • Lifetime Ownership$149.99

Questions

Is Sun Day Tracker free?
Sun Day Tracker is free to download, with no in-app purchases.
Is BetterLife AI Coach free?
BetterLife AI Coach is free to download, with in-app purchases available.
Do Sun Day Tracker or BetterLife AI Coach have ads?
Neither Sun Day Tracker nor BetterLife AI Coach shows ads.
Which is updated more often, Sun Day Tracker or BetterLife AI Coach?
Sun Day Tracker ships an update monthly, and BetterLife AI Coach weekly. Most recently, Sun Day Tracker was updated on November 5, 2026 and BetterLife AI Coach on November 5, 2026.

Other comparisons