# Cuo: Period & Saju — Period, Ovulation & Saju

> Period, Ovulation & Saju (iPhone/iPad app by JEONG EUN HYEON.)

- Source: https://appshunter.io/ios/app/cuo-period-and-saju/id6758643005 (this page in markdown: same URL + `.md`)
- Developer: [JEONG EUN HYEON](https://appshunter.io/developer/1874148529)
- Category: Health & Fitness, Medical
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 115 MB
- Languages: American English
- Released: 2026-03-29
- Data updated: 2026-08-15
- User reviews in markdown: https://appshunter.io/ios/app/cuo-period-and-saju/id6758643005/reviews.md

## What is Cuo?

Cuo is a simple and easy to use period tracking app designed to help you manage your menstrual cycle and understand your body rhythm. By recording your monthly period dates you can view estimated upcoming periods and ovulation days while keeping track of your personal cycle pattern.

With Cuo you can check your cycle information at a glance through a clear and intuitive calendar. The visual calendar layout helps you understand your monthly cycle flow and stay aware of important days and body changes. It is helpful when planning daily activities travel schedules or simply monitoring your body rhythm.

Menstrual cycles can vary from month to month and many people experience physical or emotional changes throughout the cycle. By continuing to record your cycle you can gradually understand patterns in your own rhythm. Cuo provides a convenient way to keep these records without complicated settings or difficult steps.

In addition to period tracking Cuo also includes light lifestyle content such as compatibility checks and daily horoscope features. These features add a small element of fun to everyday use while you manage your cycle.

The compatibility feature allows you to check compatibility with someone you are interested in. It can be used casually for fun and curiosity in relationships or friendships. The simple interface allows you to check results quickly without complicated settings.

The daily horoscope feature provides a quick fortune check you can view anytime during the day. Many users enjoy checking their daily fortune in the morning or during relaxing moments in the evening.

Main Features

Period cycle tracking
Next period prediction
Ovulation day estimation
Calendar based cycle management
Compatibility check
Daily horoscope

Cuo is designed for users who want a simple period tracker with additional lifestyle content. By continuing your daily records you can better understand your body rhythm and cycle patterns while enjoying small features that make the app more engaging.

이용약관 (Terms of Use, EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
개인정보처리방침 (Privacy Policy): https://api.cuoapp.com/privacy?locale=en

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| 프리미엄 연간 구독 | $19.99 | per year |
| 프리미엄 월간 구독 | $2.99 | per month |



## Version history (last 5 releases)

### 1.6.5 — 2026-08-12

Added Partner Connection & Management
Added medication reminders and fixed related issues
Added images to Saju results
Improved image display during network errors
Bug fixes and stability improvements

### 1.6.4 — 2026-07-12

- Improved saju result loading
- Improved saju result UI
- Improved post category grouping
- Improved tarot UI
- Improved banner loading
- Fixed layout overlap
- Stability improvements and bug fixes

### 1.5.7 — 2026-06-24

Better app experience, now improved 
• Bug fixes and performance stability improvements

### 1.5.6 — 2026-06-23

Better app experience, now improved 
• Bug fixes and performance stability improvements

### 1.5.5 — 2026-06-21

Added Free Tarot Reading Feature
Added Free Tarot Reading
Fixed Alarm Notification Issues

## Apps similar to Cuo

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Hana - Period Calendar](https://appshunter.io/ios/app/hana-period-calendar/id6759871227) | — | Free | Health & Fitness |
| [그냥 달력 - 생리주기 공유](https://appshunter.io/ios/app/id6752678009) | — | Free | Health & Fitness |
| [Panicollo](https://appshunter.io/ios/app/panicollo/id6754903283) | — | Free | Health & Fitness |
| [Nora · Panic & Anxiety Relief](https://appshunter.io/ios/app/nora-panic-and-anxiety-relief/id6760661722) | — | Free | Health & Fitness |
| [CYRUS](https://appshunter.io/ios/app/cyrus/id6739202016) | — | Free | Health & Fitness |
| [Plululu - Period Tracker](https://appshunter.io/ios/app/plululu-period-tracker/id6749657168) | — | Free | Health & Fitness |

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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 2026-08-15.*