Comparison

MyCircadianApp vs The Vow Method

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

Head to head
About

MyCircadianApp

Optimize your health by tracking sunlight exposure, UV index, and vitamin D synthesis. Log sun sessions, monitor light levels, and receive personalized guidance based on your skin type, weather, and location. Enhance well-being and boost mood by syncing with natural light cycles.

Highlights
  • Sunlight exposure tracking
  • UV index monitoring
  • Vitamin D synthesis tracking
  • Circadian rhythm monitoring
  • Personalized guidance
  • Sunrise/sunset compass
  • Lux meter
Features
Read full description

MyCircadian helps you optimize your health by tracking sunlight exposure, UV index, vitamin D synthesis, and circadian rhythms. Log sun sessions, monitor light levels, and get personalized guidance based on your skin type, weather, and location. The app features a compass for sunrise/sunset directions and a lux meter to monitor light quality. Sync with natural light cycles to enhance your well-being, boost your mood, and support healthy vitamin D production. Perfect for anyone looking to balance modern life with natural rhythms. Terms of Use: https://mycircadianapp.com/terms-of-use

About

The Vow Method

Features
Read full description

Kick-start your fitness journey with The Vow Method. Together with Christy Cousino, you'll have the best combination of nutrition & exercises available on a single app. With The Vow Method, you can begin your fitness journey in no time. Get a fully personalized workout and meal plan tailored to your fitness goals. Progress tracking gets easier when you log your daily workout, record meals, update your check-ins and connect your fitness band & health kit, and get real-time updates via advanced analytical tools. Everything that contributes to your fitness goals gets captured in one place. To top it all, use the inbuilt 1-1 chat feature to have all your queries addressed on the go. You deserve to be the best. That’s why The Vow Method have packed so many features in a single app to help you achieve your fitness goals. Start your journey today! Features that will help you achieve your fitness goals include: * Personalized Workout Plan: Get a fully personalized fitness plan tailored to your goals, whether it is to gain weight, lose weight, gain muscles, or simply wish to work on your general fitness. * Nutrition, Hydration & Habits: Access meal plans assigned by your coach and log your food intake to keep a close track of your calorie intake and macros. You can also track your hydration, steps and calories burnt on the app. * Instant messaging & video calls - Message your coach in real-time and schedule video sessions directly from the app. Stay connected with your coach to improve compliance and get better results. * Check-ins: Gain complete insight into your overall performance with easy check-ins and real-time updates. * Progress: Stay on top of your progress with powerful analytics. * Wearable integration: Get the bigger picture of your progress by connecting your fitness band & health kit thereby enabling real-time updates. Note regarding Apple Health: The app integrates with Apple Health to show your daily activity - distance, steps, active energy, and flights to help you better achieve your goals. App also uses Apple Health to track energy burned and heart rate during a workout session, if an Apple Watch is used. Workout metrics are shared with the coach to better design your workout schedule. DISCLAIMER: Users should seek a doctor’s advice before using this app and making any medical decisions.

Screenshots

MyCircadianApp4 screens
The Vow Method4 screens

Verdict

The call

The clearest difference is in-app purchases: The Vow Method at none against MyCircadianApp's 7. MyCircadianApp's advantage is update cadence (every 4 weeks vs every 3 months). On price, ads, device support and iOS requirement 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. MyCircadianApp sells 7 in-app purchases, starting at $3.99 per month. The Vow Method asks for nothing beyond the download.

UpkeepUpdate frequency

MyCircadianApp ships an update every 4 weeks, The Vow Method every 3 months. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
MyCircadianApp versus The Vow Method: the parameters behind the verdict, then further details
ParameterMyCircadianAppThe Vow Method
PriceFreeFree
Rating4.9 (266 ratings) — better—
Positive reviews98.6% of reviews—
Number of ratings266 — better—
Update frequencyEvery 4 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size56 MB135 MB
Age rating12+17+
DeveloperSarah Kleiner WellnessChristy Cousino

Bugs and requests

MyCircadianApp

Reported bugs

2 issues
  • Login screen freezes
  • Incompatibility with older devices

Requested features

2 requests
  • Ability to manually log sun sessions and vitamin D sources
  • Option to view upcoming day's sunrise/sunset times

The Vow Method

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

MyCircadianApp

Subscriptions4
  • Monthly7 Days trial$3.991 Month
  • Monthly1 Month trial$3.991 Month
  • Yearly1 Month trial$36.001 Year
Show 1 more
  • Yearly7 Days trial$36.001 Year
One-time3
  • Lifetime$99.00
  • Lifetime$179.00
  • Lifetime$199.00
None

The Vow Method

No in-app purchases

Questions

Is MyCircadianApp free?
MyCircadianApp is free to download, with in-app purchases available.
Is The Vow Method free?
The Vow Method is free to download, with no in-app purchases.
Do MyCircadianApp or The Vow Method have ads?
Neither MyCircadianApp nor The Vow Method shows ads.
Which is updated more often, MyCircadianApp or The Vow Method?
MyCircadianApp ships an update every 4 weeks, and The Vow Method every 3 months. Most recently, MyCircadianApp was updated on November 4, 2026 and The Vow Method on October 31, 2026.

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