# ESSENZI vs FertilFlow

The clearest difference is in-app purchases: ESSENZI at none against FertilFlow's 3. FertilFlow's advantage is update cadence (every 4 days vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. FertilFlow sells 3 in-app purchases, starting at $3.99 per month. ESSENZI asks for nothing beyond the download.

ESSENZI ships an update every 5 months, FertilFlow every 4 days. The most recent releases landed on October 18, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ESSENZI | FertilFlow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 days** |
| Size | 107 MB | 48 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [APP-IT.BE](https://appshunter.io/developer/1561954809) | [Roy Wynant](https://appshunter.io/developer/1888912999) |

## What reviewers say

### ESSENZI

[App page](https://appshunter.io/ios/app/essenzi/id6474707059)

**Features:** macOS Compatibility

**In-app purchases:** none


### FertilFlow

[App page](https://appshunter.io/ios/app/fertilflow/id6762568735)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FertilFlow Premium – Monthly | $3.99 | per month |
| FertilFlow Premium – 6 Months | $22.99 | per 6 months |
| FertilFlow Premium – Yearly | $39.99 | per year |


## Frequently asked questions

### Is ESSENZI free?

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

### Is FertilFlow free?

FertilFlow is free to download, with in-app purchases available.

### Do ESSENZI or FertilFlow have ads?

Neither ESSENZI nor FertilFlow shows ads.

### Which is updated more often, ESSENZI or FertilFlow?

ESSENZI ships an update every 5 months, and FertilFlow every 4 days. Most recently, ESSENZI was updated on October 18, 2026 and FertilFlow on October 25, 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.*