Comparison

Cafactor vs WakeSense

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

Head to head
About

Cafactor

This app models your body's real-time caffeine levels using a scientific pharmacokinetic approach. It helps you understand your caffeine absorption, decay, and personal sleep thresholds, adapting to your unique biology and activity. Connect with health data for an even smarter metabolic coaching experience.

Highlights
  • Real-time caffeine curve modeling
  • Personalized physiological parameters
  • HealthKit integration for adaptive coaching
  • Exercise and sleep-adaptive thresholds
  • HRV & Recovery integration
  • Progressive calibration of half-life
  • Offline, private tracking
Features
Read full description

Caffeine Hourglass is now Cafactor — rebuilt from the ground up. What began as a simple caffeine timer has evolved into a full physiological model that adapts to your biology in real time. Version 2.0 isn't an update. It's a new category of health tool. Know your caffeine. Protect your sleep. Log a drink in seconds. Cafactor computes your real-time caffeine curve using a peer-reviewed pharmacokinetic model — complete with a realistic absorption phase, first-order decay, and your personal biological parameters. See whether you can safely have one more coffee, and exactly when your levels will drop below your personal sleep threshold. Personalised to your body Set your sex, height, weight, and age. Cafactor applies the Boer (1984) lean-body-mass formula to calculate how caffeine distributes in your specific body. Add smoking status, hormonal medication, or pregnancy for a half-life that's truly yours. Your tolerance to caffeine — derived automatically from 7-day history — rounds out the picture. HealthKit: exponentially smarter Connect Apple Health and Cafactor transforms from a tracker into an adaptive metabolic coach: • Exercise modifier — Recent vigorous workouts temporarily speed up your metabolism. Cafactor detects this from HealthKit and adjusts your decay curve automatically. • Sleep-adaptive threshold — Last night's poor sleep tightens your safe window today. Great sleep? More room for your morning ritual. • HRV & Recovery (Apple Watch) — Daily heart-rate variability fuses with sleep quality to create a PhysiologicalState score, shifting your optimal intake windows and adjusting thresholds by up to 40%. • Progressive calibration — Recency-weighted regression over 30 days of sleep and HRV feedback automatically refines your personal half-life, growing from Preliminary to Reliable confidence as data accumulates. Pro features Unlimited history · Trend, sleep quality and scatter charts · Last safe caffeine time · Four smart notifications (morning window, safe window, withdrawal, recovery) · Shareable weekly report · Siri shortcuts · Unlimited custom drinks Free, forever, offline Core tracking is always free. No account. No internet. No data leaves your device — ever.

About

WakeSense

Read full description

WAKESENSE – SLEEP, ENERGY & RECOVERY TRACKER Wake up with better health insights. WakeSense is your daily health journal designed to help you track sleep quality, energy levels, mood and physical recovery every morning. In less than a minute a day, record how you feel and discover meaningful trends about your health and wellness. Whether you want to improve sleep, reduce fatigue, monitor chronic pain, support recovery or build healthier habits, WakeSense gives you the tools to understand your body better. TRACK YOUR MORNING HEALTH Start every day with a clearer picture of your well-being. Log: • Sleep quality • Energy level • Morning mood • Physical pain • Muscle stiffness • Headaches • Personal notes Quick daily entries create valuable health insights over time. POWERFUL HEALTH DASHBOARD Monitor your progress with detailed analytics and easy-to-read charts. View: • Daily wellness score • 7-day trends • 30-day trends • Best day • Lowest day • Overall average • Consistency streaks Understand how sleep, recovery and lifestyle habits affect your daily health. DISCOVER LONG-TERM TRENDS WakeSense helps you identify patterns that are easy to miss. Analyze: • Fatigue cycles • Energy fluctuations • Mood changes • Pain episodes • Recovery progress Build awareness and make informed decisions about your health and wellness. PROFESSIONAL PDF REPORTS Generate detailed PDF reports instantly. Share your reports with: • Doctors • Physical therapists • Osteopaths • Nutritionists • Fitness coaches Export 7-day, 30-day or custom reports whenever you need them. BUILD BETTER SELF-CARE HABITS Stay consistent with smart reminders. • Personalized notifications • Daily tracking • Habit-building support • Complete history Just a few seconds each morning can help improve your long-term well-being. YOUR PRIVACY MATTERS WakeSense keeps your data private. • No data selling • No account required • Offline functionality • Local data storage Your health information stays on your device. KEY FEATURES • Sleep Tracker • Energy Tracker • Mood Tracker • Recovery Tracker • Pain Tracker • Daily Health Journal • Advanced Analytics • Weekly & Monthly Trends • Daily Wellness Score • PDF Report Export • Smart Reminders • Dark & Light Mode • English & French Support • iPhone & iPad Compatible WakeSense helps you better understand your sleep, energy, mood and recovery so you can build healthier habits and improve your overall wellness. Download WakeSense today and start tracking your health every morning.

Screenshots

Cafactor4 screens

Verdict

The call

The clearest difference is in-app purchases: WakeSense at none against Cafactor's 1. WakeSense also leads on iOS requirement (13.0 vs 17.6). Cafactor's advantage is update cadence (weekly vs every 2 months) and device support. On price 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. Cafactor sells 1 one-off in-app purchase. WakeSense asks for nothing beyond the download.

UpkeepUpdate frequency

Cafactor ships an update weekly, WakeSense every 2 months. The most recent releases landed on October 11, 2026 and October 8, 2026 respectively.

Scorecard4 real differences · 6 level
Cafactor versus WakeSense: the parameters behind the verdict, then further details
ParameterCafactorWakeSense
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyWeekly — betterEvery 2 months
AdsNo—
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, Apple Watch — better—
Requires iOS17.613.0 — better
Further details — not scored
Size9 MB29 MB
Age rating4+4+
DeveloperNan YuAMADOU OURY CAMARA

In-app purchases

1 purchases

Cafactor

One-time1
  • Cafactor Pro$3.99
None

WakeSense

No in-app purchases

Questions

Is Cafactor free?
Cafactor is free to download, with in-app purchases available.
Is WakeSense free?
WakeSense is free to download, with no in-app purchases.
Which is updated more often, Cafactor or WakeSense?
Cafactor ships an update weekly, and WakeSense every 2 months. Most recently, Cafactor was updated on October 11, 2026 and WakeSense on October 8, 2026.

Other comparisons