Comparison

Period Tracker vs AsterKit

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

Head to head
About

Period Tracker

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Understand your body's natural rhythm. Period Tracker helps you predict your cycle and optimize your life around your hormones. FEATURES: • Log flow levels: light, moderate, heavy • Track mood changes throughout your cycle • Record symptoms: cramps, bloating, fatigue, and more • 5-phase cycle visualization: Menstruation, Follicular, Fertile Window, Ovulation, Luteal • Smart predictions based on your history • Color-coded calendar for easy pattern recognition • Detailed cycle statistics and averages INSIGHTS & TRENDS: • See your average cycle length • Identify symptom patterns by phase • Track mood shifts across your cycle • Predict your next period and fertile window PRIVACY FIRST: All data is stored locally on your device. No accounts required. No cloud sync. No one sees your data but you. Period Tracker is free and ad-supported. Download now and start understanding your cycle today.

About

AsterKit

Features
Read full description

FIRST PERIOD GUIDE New to periods? Open the Guide tab from Calendar or Settings. Plain language, no jargon. Written for anyone at the beginning. AsterKit is a personal wellness app for tracking your cycle. Not a medical device. A private place to log your period and understand your own patterns. THE DIFFERENCE Most period apps track every tap, bundle analytics SDKs, and sell your cycle data to advertisers. AsterKit does none of that. Cycle data stays on your device, protected by the operating system. We have no servers, no database, no copy of your history. HOW IT WORKS A parent completes a quick math check (about 10 seconds) to get started. No PIN, no account. Then the 7-day free trial starts. After day 7, a one-time $4.99 purchase unlocks everything. No subscription, no recurring charges. WHAT YOU CAN DO LOG YOUR PERIOD Record start and end dates. Add intensity (light, medium, heavy, spotting), symptoms, and mood. All stored locally on your device. GENTLE PREDICTIONS After 3+ cycles, see an estimated date for your next period. Based on your personal history. Predictions are estimates only; everyone's cycle is different. ADVANCED INSIGHTS (Premium) Average cycle length, period duration, and consistency patterns. Export a PDF summary to bring to a doctor's appointment. PRIVACY, PLAINLY • Cycle data stays on your device. • We have no servers, no copy of your history. • The only thing that ever leaves your phone: an anonymous receipt token (it confirms your purchase is valid). That's it. • No analytics. No ads. No data sharing. ONE PRICE. YOURS TO KEEP. 7-day free trial, then one-time $4.99. No subscription, no recurring charges, no surprise bills. NOT MEDICAL ADVICE: AsterKit is not a medical device and should not replace professional medical advice. For medical questions about your cycle, consult a healthcare provider. Privacy policy: asterkit.app/privacy Terms: asterkit.app/terms Support: support@asterkit.app (response within 24 hours)

Screenshots

AsterKit4 screens

Verdict

The call

The clearest difference is in-app purchases: Period Tracker at none against AsterKit's 1. AsterKit's advantage is device support. On price and iOS requirement there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. AsterKit sells 1 one-off in-app purchase. Period Tracker asks for nothing beyond the download.

Scorecard2 real differences Ā· 4 level
Period Tracker versus AsterKit: the parameters behind the verdict, then further details
ParameterPeriod TrackerAsterKit
PriceFreeFree
Update frequency—Every 2 weeks
Ads—No
In-app purchasesNo — betterYes
Devices—iPhone, iPad, iPod — better
Requires iOS15.115.1
Further details — not scored
Size26 MB43 MB
Age rating4+12+
DeveloperBlas PrietoRyan Gonzalez

In-app purchases

None

Period Tracker

No in-app purchases

1 purchases

AsterKit

One-time1
  • AsterKit Premium$4.99

Questions

Is Period Tracker free?
Period Tracker is free to download, with no in-app purchases.
Is AsterKit free?
AsterKit is free to download, with in-app purchases available.

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