# Nhật ký Eva vs Herflow

The clearest difference is in-app purchases: Herflow at none against Nhật ký Eva's 1. Nhật ký Eva's advantage is iOS requirement (9.0 vs 13.0). On price, ads and device support there is nothing between them.

Both are free to download. Nhật ký Eva sells 1 one-off in-app purchase. Herflow asks for nothing beyond the download.

## The numbers

| Metric | Nhật ký Eva | Herflow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (7 ratings)](https://appshunter.io/ios/app/nhat-ky-eva/id567647927/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 91.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 63 MB | 71 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Savvycom JSC](https://appshunter.io/developer/480094936) | [Huyen Thuong Nguyen Thi](https://appshunter.io/developer/6781315761) |

## What reviewers say

### Nhật ký Eva

[App page](https://appshunter.io/ios/app/nhat-ky-eva/id567647927)

This app helps women track their menstrual cycles and ovulation with accurate predictions. It offers personalized health insights, pregnancy planning, and privacy features. Designed specifically for Vietnamese women, it aims to be a reliable health companion.

**Highlights:** Menstrual cycle tracking, Ovulation prediction, Pregnancy planning, Health symptom tracking, Daily notes, Password protection

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to Pro | $0.99 | one-time |


### Herflow

[App page](https://appshunter.io/ios/app/herflow/id6781315759)

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

**In-app purchases:** none


## Frequently asked questions

### Is Nhật ký Eva free?

Nhật ký Eva is free to download, with in-app purchases available.

### Is Herflow free?

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

### Do Nhật ký Eva or Herflow have ads?

Neither Nhật ký Eva nor Herflow shows ads.

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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.*