Comparison

Cycle vs ZZZ Tracker

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

Head to head
About

Cycle

This app helps you track your menstrual cycle and pregnancy journey with a calm, weather-inspired interface. It offers predictions for periods and ovulation, symptom logging, and pregnancy milestones. Plan your life around your body's rhythms with helpful insights and reminders.

Highlights
  • Period and ovulation tracking
  • Pregnancy journey companion
  • Symptom and mood logging
  • Customizable reminders
  • Cloud sync across devices
  • Data export
Features
Read full description

See where you are in your cycle or pregnancy at a glance. Cycle brings period tracking, estimated ovulation and fertility windows, symptoms, reminders, pregnancy milestones, and postpartum tracking into one calm, weather-inspired view. Log periods, flow, symptoms, moods, intimacy, and pregnancy updates in one place. Look back through your calendar to understand patterns over time, with an experience that stays clear and low-pressure. FOLLOW YOUR CYCLE · See your cycle through a calm, weather-inspired view · Log periods, flow, symptoms, and moods · View estimated period, ovulation, and fertility windows · Set reminders for periods, ovulation, and self-care · Review your cycle history from the calendar PREGNANCY AND POSTPARTUM · Follow your due date and pregnancy timeline · See weekly progress and pregnancy milestones · Keep track of pregnancy symptoms and updates · Move into postpartum mode after birth EVERYDAY EXTRAS · Cloud sync across devices · Keep using supported features if your connection drops briefly; changes sync when you're back online · Clean, distraction-free design · Light and dark modes · Data export PREMIUM Premium adds daily cycle notes and tags with search and multi-select filters, detailed historical insights and charts, additional colour themes, and a home screen widget for your current cycle or pregnancy overview. LANGUAGE SUPPORT Cycle is available in 31 localizations. HEALTH NOTE Cycle is not a medical device and does not diagnose, treat, cure, or prevent any medical condition. Cycle and fertility estimates are for information only and should not be used as contraception or medical advice. Cycle is part of Lightli, a family of minimal yet playful apps. By using this app, you agree to Lightli's Terms of Use and Privacy Policy. Terms: https://lightli.uk/terms/ Privacy: https://lightli.uk/privacy-policy/

About

ZZZ Tracker

Features
Read full description

ZZZ Tracker is your personal sleep journal — simple to log, powerful to analyze. Whether you're trying to improve sleep quality, build healthier habits, or understand what affects your rest, ZZZ Tracker helps you track every night and uncover meaningful patterns over time. LOG YOUR SLEEP IN SECONDS Record bedtime, wake time, and sleep quality in seconds. Add optional notes and tag factors such as caffeine, alcohol, exercise, stress, late meals, screen time, or naps to understand how daily habits affect your sleep. POWERFUL SLEEP INSIGHTS Sleep Goal Set a nightly sleep target and see how each night compares. Weekly Chart View your sleep duration over the last 7 days at a glance. Sleep Debt Track your cumulative sleep surplus or deficit across 7-day and 30-day periods. Factor Correlations Discover which habits are linked to better or worse sleep quality. Monthly Heatmap See every night displayed on a color-coded calendar for quick trend analysis. BUILD LASTING HABITS Set a personal sleep goal and monitor your progress over time. Maintain logging streaks to stay consistent night after night. Review bedtime consistency to understand how regular your schedule is. Enable daily reminders so you never forget to log your sleep. Receive a weekly recap every Sunday morning to review your progress. YOUR DATA, YOUR WAY Export all sleep records as CSV or JSON at any time. Back up and restore your data using Google Drive. Reset all data from Settings whenever you want a fresh start. Start tonight. Better sleep begins with awareness. Download ZZZ Tracker and take the first step toward healthier sleep.

Screenshots

Cycle4 screens
ZZZ Tracker3 screens

Verdict

The call

The clearest difference is in-app purchases: ZZZ Tracker at none against Cycle's 2. On price, update cadence, 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. Cycle sells 2 in-app purchases, starting at $1.99 per month. ZZZ Tracker asks for nothing beyond the download.

UpkeepUpdate frequency

Cycle ships an update fortnightly, ZZZ Tracker every 3 weeks. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

Scorecard1 real difference · 8 level
Cycle versus ZZZ Tracker: the parameters behind the verdict, then further details
ParameterCycleZZZ Tracker
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyFortnightly — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size58 MB29 MB
Age rating4+4+
DeveloperLightli LTDLuc Pham Van

In-app purchases

2 purchases

Cycle

Subscriptions2
  • Premium · Monthly$1.991 Month
  • Premium · Yearly7 Days trial$14.991 Year
None

ZZZ Tracker

No in-app purchases

Questions

Is Cycle free?
Cycle is free to download, with in-app purchases available.
Is ZZZ Tracker free?
ZZZ Tracker is free to download, with no in-app purchases.
Do Cycle or ZZZ Tracker have ads?
Neither Cycle nor ZZZ Tracker shows ads.
Which is updated more often, Cycle or ZZZ Tracker?
Cycle ships an update fortnightly, and ZZZ Tracker every 3 weeks. Most recently, Cycle was updated on October 15, 2026 and ZZZ Tracker on October 14, 2026.

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