# ovolution vs SaferKid

ovolution and SaferKid are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. ovolution sells 3 in-app purchases, starting at $1.99 per month and SaferKid sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ovolution ships an update every 5 weeks, SaferKid every 3 weeks. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ovolution | SaferKid |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/ovolution/id1633014678/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 121 MB | 46 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [ovolution GmbH](https://appshunter.io/developer/1633014680) | [Devory IT GmbH](https://appshunter.io/developer/1722315704) |

## What reviewers say

### ovolution

[App page](https://appshunter.io/ios/app/ovolution/id1633014678)

This app helps users understand their natural menstrual cycle using the NFP method. It tracks body signs like temperature and cervical mucus to determine ovulation and fertile days. Features include cycle phase information, fertility tracking, and pregnancy monitoring.

**Highlights:** NFP rule evaluation, Digital NFP cycle sheet, Body sign documentation, Cycle phase display and forecast, Fertility and pregnancy mode, Cycle statistics and overview, NFP educational articles and videos

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $1.99 | per month |
| Monthly Subscription | $1.99 | per month |
| Yearly subscription | $19.99 | per year |


### SaferKid

[App page](https://appshunter.io/ios/app/saferkid/id6761647657)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SaferKid Pro | $2.99 | per month |
| SaferKid Pro Jahresabo | $17.99 | per year |
| SaferKid Pro – Für immer | $89.99 | one-time |


## Frequently asked questions

### Is ovolution free?

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

### Is SaferKid free?

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

### Do ovolution or SaferKid have ads?

Neither ovolution nor SaferKid shows ads.

### Which is updated more often, ovolution or SaferKid?

ovolution ships an update every 5 weeks, and SaferKid every 3 weeks. Most recently, ovolution was updated on October 22, 2026 and SaferKid on October 24, 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.*