# CycleLog: Private Period Log — Private, Offline & No Account

> Private, Offline & No Account (iPhone/iPad app by Dang Ngoc Khanh Quang.)

- Source: https://appshunter.io/ios/app/cyclelog-private-period-log/id6780204886 (this page in markdown: same URL + `.md`)
- Developer: [Dang Ngoc Khanh Quang](https://appshunter.io/developer/1453478733)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Age rating: 12+
- Requires: iOS 15.0 · 30 MB
- Languages: American English
- Released: 2026-07-03
- Data updated: 2026-09-07
- User reviews in markdown: https://appshunter.io/ios/app/cyclelog-private-period-log/id6780204886/reviews.md

## What is CycleLog?

CycleLog — Private period & cycle tracker

Your cycle. Your data. Your phone.

CycleLog is a calm, private period tracker that works completely offline — no account, no ads, no data leaving your device.

• Log period, flow, mood & symptoms
• Period and fertile window estimates
• Local reminders
• Emergency Privacy — hide all data instantly
• App lock
• Full data export & import

Your history stays on your device, always.

— WHAT YOU CAN LOG —
Flow: Spotting · Light · Medium · Heavy
Mood: Very low → Great
Symptoms: Cramps, headache, bloating, fatigue, acne, cravings, breast tenderness, nausea, insomnia
Body signals: BBT, cervical mucus, energy, sleep quality
Private notes — stored only on this device

— PREDICTIONS —
Next period and fertile window estimates based on your logged history. Confidence level shown clearly. Estimates improve the more you log.

— EMERGENCY PRIVACY —
One tap hides all cycle data on this device. Turn it back on whenever you're ready. Free for everyone, forever.

— PRIVACY & SECURITY —
• Face ID / Touch ID app lock
• No analytics, no ad SDK, no cloud sync
• No account required — ever

— FREE & PRO —
Free: period, flow, mood, symptoms, estimates, fertile window, emergency privacy, export and import.
Pro: advanced pattern review, longer history views, and doctor-ready reports.

——

CycleLog provides estimates only — not medical advice and not a contraceptive method. Consult a doctor for health concerns.

Privacy Policy: https://quangdnk.github.io/termandprivacy/cyclelog/privacy.html
Terms of Use: https://quangdnk.github.io/termandprivacy/cyclelog/terms.html

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| CycleLog Pro – Monthly | $2.99 | per month |
| CycleLog Pro Yearly | $17.99 | per year |



## Version history (last 2 releases)

### 2.0.0 — 2026-09-07

• CycleLog 2.0 is here.
• Estimates now show date ranges when confidence is lower.
• New notes explain limited history, varied cycles, long current cycles, or unusual period length.
• Calendar estimate days look softer when dates are uncertain.

### 1.0 — 2026-07-04

No release notes.

## More apps by Dang Ngoc Khanh Quang

- [ScanSpace: QR PDF Tools](https://appshunter.io/ios/app/scanspace-qr-pdf-tools/id6775698519)
- [BabyDays - Baby Care Tracker](https://appshunter.io/ios/app/babydays-baby-care-tracker/id6777655406)

All apps by Dang Ngoc Khanh Quang: https://appshunter.io/developer/1453478733

## Related topics

[period log](https://appshunter.io/ios/topics/period-log)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-07.*