# OvumB vs DK HaGiang

The clearest difference is update cadence: DK HaGiang at every 4 days against OvumB's fortnightly. DK HaGiang also leads on iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

OvumB ships an update fortnightly, DK HaGiang every 4 days. The most recent releases landed on September 28, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | OvumB | DK HaGiang |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/ovumb/id6449699281/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Free | — |
| Size | 78 MB | 30 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [TMSC VIET NAM MEDICAL TECHNOLOGY COMPANY LIMITED](https://appshunter.io/developer/1690129367) | [THAI NGUYEN NATIONAL HOSPITAL](https://appshunter.io/developer/1841785168) |

## What reviewers say

### OvumB

[App page](https://appshunter.io/ios/app/ovumb/id6449699281)

This app helps track menstrual cycles, predict ovulation, and offers pregnancy support. It uses AI to analyze test strips and provides a community for users. It also includes features for mother and baby care, and expert consultation.

**Highlights:** AI-powered ovulation prediction, Menstrual cycle tracking, Pregnancy support mode, Test strip result analysis, Mother and baby care, Emotional diary, Community forum

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

**In-app purchases:** none


### DK HaGiang

[App page](https://appshunter.io/ios/app/dk-hagiang/id6756047814)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OvumB free?

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

### Is DK HaGiang free?

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

### Do OvumB or DK HaGiang have ads?

Neither OvumB nor DK HaGiang shows ads.

### Which is updated more often, OvumB or DK HaGiang?

OvumB ships an update fortnightly, and DK HaGiang every 4 days. Most recently, OvumB was updated on September 28, 2026 and DK HaGiang on October 28, 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.*