Period Tracker vs Curtail
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Period Tracker
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Relya helps you record your periods, follow your cycle, and view cycle estimates based on the information you enter. Features: ⢠Record and review your periods. ⢠View your period history and average cycle length. ⢠See an estimated date for your next period. ⢠View estimated fertile days and ovulation window. ⢠Explore general wellness and self-care tips. Period, fertile-day, and ovulation dates are estimates based on your recorded cycle information. Individual cycles can vary, and estimates may change as you add new periods. Fertile-day and ovulation estimates should not be used as contraception or treated as guaranteed safe days. Relya is not a medical device and does not diagnose, treat, cure, or prevent any medical condition. For medical advice, diagnosis, or treatment, consult a qualified healthcare professional. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Curtail
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Most quit apps punish you for being human: a slip wipes your streak, and when the craving actually hits, the app is nowhere. Curtail is built the other way around. When a craving strikes, one tap opens a full-screen rescue pod with a 20-minute urge-surfing timer, a calming breathing animation, and an AI coach that works offline. And when you do slip, nothing is erased - your longest record, your total progress, and your garden all stand. WHAT YOU GET - SOS Rescue Pod: 3 seconds from craving to calm. A 20-minute urge-surfing timer with wave-breathing animation and an on-device AI coach you can talk to - even offline. - Permanent Record: A slip only ends the current chapter. Your longest streak, total clean time, and every wave you rode are kept forever. - Shame-Free Logging: Log a slip in 10 seconds with a slider and two taps. The AI responds with zero judgment, one insight, and one strategy for next time. Every past entry stays editable. - Multiple Profiles: Track sugar, alcohol, cigarettes, vape and nicotine, shopping, short video, caffeine, or anything custom. Want to drink less, quit for good, or taper slowly? Pick abstinence or taper mode per profile - all in one app with a unified timeline. - Trigger Radar: A private heatmap shows when cravings strike (weekday x time of day) plus your top emotional triggers. Computed on your device, never uploaded. - Growth Garden: Every day you hold and every craving you ride makes your garden grow. Export a share card showing your longest record and total progress - not your failures. - Apple Watch SOS: A wrist-sized rescue button with haptic breathing, so help is there even when your phone is not. - Lock-Screen Widget and Live Activity: Start surfing straight from your lock screen and watch the wave pass in real time. - Privacy First: No account, no analytics, no ads. Your data lives on your device with optional private iCloud sync, and you can export everything as JSON or CSV anytime. - Honest Progress: Whether your goal is sobriety, a sugar detox, or fewer late-night scroll sessions, Curtail counts your sober days, your streaks, and the urges you resist - a clean counter for the whole journey of addiction recovery. - Food Label Scan: Point your camera at a nutrition label and Curtail flags hidden sugar aliases the front label hides (Pro). FREE VS PRO Free: 3 profiles, full tracking with the permanent-record algorithm, the complete SOS pod with 5 AI coach talks per day, garden, trigger radar, shame-free slip logging, and data export. No ads, ever. Pro unlocks unlimited profiles, unlimited AI coach talks, 30 food label scans per month, 4 AI weekly insight reports per month, the Apple Watch app, lock-screen widgets, and themes. SUBSCRIPTION INFORMATION: - Payment will be charged to your Apple ID account at confirmation of purchase. - Subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. - You can manage and cancel your subscriptions by going to your account settings on the App Store after purchase. - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription. Curtail is a self-help tool, not medical treatment. If you are struggling, please reach out to a professional - and if you are in crisis, the 988 lifeline card is one tap away inside the app. Download Curtail today and ride the wave - nothing resets, nothing lost.
Screenshots
Verdict
The clearest difference is ads: Curtail at none against Period Tracker's shown. Period Tracker's advantage is iOS requirement (16.0 vs 18.0). On price, in-app purchases and device support 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
Both are free to download. Period Tracker sells 2 in-app purchases, starting at $3.99 per month and Curtail sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Period Tracker | Curtail |
|---|---|---|
| Price | Free | Free |
| Ads | Yes | No ā better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad, Apple Watch ā better |
| Requires iOS | 16.0 ā better | 18.0 |
| Further details ā not scored | ||
| Size | 10 MB | 5 MB |
| Age rating | 12+ | 4+ |
| Developer | Namik Ersun | 蓺 åØ |
In-app purchases
Period Tracker
- Monthly3 Days trial$3.991 Month
- Yearly3 Days trial$39.991 Year
Curtail
- Curtail Pro Monthly7 Days trial$4.991 Month
- Curtail Pro Annual7 Days trial$29.991 Year








