# iFertile vs SW ATRIO

The clearest difference is review sentiment: iFertile at 57% against SW ATRIO's 0%. iFertile also leads on ratings volume (60 vs 1). SW ATRIO's advantage is ads (none vs shown) and update cadence (every 2 months vs every 24 months). On price, 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.

SW ATRIO holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: iFertile has 60 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 57% of iFertile's written reviews are positive against 0% of SW ATRIO's, so the app with the better star average is not the one people write more warmly about.

iFertile ships an update every 24 months, SW ATRIO every 2 months. The most recent releases landed on October 16, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | iFertile | SW ATRIO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (60 ratings)](https://appshunter.io/ios/app/ifertile/id919367481/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sw-atrio/id1456740323/reviews)** |
| Number of ratings | **60** | 1 |
| Positive reviews | **57.1% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 24 months | **Every 2 months** |
| Monetization | Ad-supported | **Free** |
| Size | 5 MB | 119 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | +4 | 4+ |
| Developer | [FBF Sistemas LTDA](https://appshunter.io/developer/321061871) | [Multilaser S/A](https://appshunter.io/developer/1445686172) |

## What reviewers say

### iFertile

[App page](https://appshunter.io/ios/app/ifertile/id919367481)

This app estimates a woman's fertile period using the rhythm method. It's designed for those trying to conceive by identifying optimal times for pregnancy. While it can be used as a contraceptive, its effectiveness is limited.

**Highlights:** Fertile period estimation, Rhythm method calculations, Pregnancy planning tool, Contraceptive method (limited security)

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

**In-app purchases:** none


### SW ATRIO

[App page](https://appshunter.io/ios/app/sw-atrio/id1456740323)

This app syncs with your iOS Health data and a compatible smartwatch to track sports performance. It also provides notifications for calls, texts, and social media, and enables sending/receiving messages and calls directly from your watch.

**Highlights:** iOS Health integration, Smartwatch sport performance monitoring, Incoming call and message notifications, Social network notifications, Send/receive SMS messages, Make/receive phone calls from smartwatch

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is iFertile free?

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

### Is SW ATRIO free?

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

### Which has better reviews, iFertile or SW ATRIO?

SW ATRIO is rated higher. iFertile averages 4.7 out of 5 from 60 ratings, while SW ATRIO averages 5.0 from 1 ratings.

### Do iFertile or SW ATRIO have ads?

iFertile shows ads; SW ATRIO does not.

### Which is updated more often, iFertile or SW ATRIO?

iFertile ships an update every 24 months, and SW ATRIO every 2 months. Most recently, iFertile was updated on October 16, 2026 and SW ATRIO on October 2, 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.*