# Ovulation Fertility Tracker vs DdongDal

The clearest difference is in-app purchases: DdongDal at none against Ovulation Fertility Tracker's 3. DdongDal also leads on iOS requirement (13.0 vs 15.0.0). Ovulation Fertility Tracker's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. Ovulation Fertility Tracker sells 3 in-app purchases, starting at $3.99 per 7 days. DdongDal asks for nothing beyond the download.

Ovulation Fertility Tracker ships an update every 5 weeks, DdongDal monthly. The most recent releases landed on October 2, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Ovulation Fertility Tracker | DdongDal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (6 ratings)](https://appshunter.io/ios/app/ovulation-fertility-tracker/id6745889379/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | Freemium | — |
| Size | 41 MB | 43 MB |
| Requires iOS | 15.0.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [ICarta](https://appshunter.io/developer/1505094938) | [HyeIn Kim](https://appshunter.io/developer/6792473249) |

## What reviewers say

### Ovulation Fertility Tracker

[App page](https://appshunter.io/ios/app/ovulation-fertility-tracker/id6745889379)

This smart and private tool helps track menstrual cycles, predict ovulation, and support fertility goals with AI-powered insights. It offers intuitive logging of symptoms and moods, with custom reminders for key events. Designed for all cycle types, it provides reliable, data-driven guidance for reproductive health awareness.

**Highlights:** AI-based ovulation and fertile window predictions, Period tracking with cycle start and end dates, Symptom, mood, and discharge logging, Pregnancy planning support, Customizable event reminders, Private and secure local data storage

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ava AI Weekly | $3.99 | per 7 days |
| Ava Monthly | $7.99 | per month |
| Ava Annual | $69.99 | per year |


### DdongDal

[App page](https://appshunter.io/ios/app/ddongdal/id6792473247)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Ovulation Fertility Tracker free?

Ovulation Fertility Tracker is free to download, with in-app purchases available.

### Is DdongDal free?

DdongDal is free to download, with no in-app purchases.

### Do Ovulation Fertility Tracker or DdongDal have ads?

DdongDal shows ads; Ovulation Fertility Tracker does not.

### Which is updated more often, Ovulation Fertility Tracker or DdongDal?

Ovulation Fertility Tracker ships an update every 5 weeks, and DdongDal monthly. Most recently, Ovulation Fertility Tracker was updated on October 2, 2026 and DdongDal on October 11, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*