# iFertile vs BillingsAppTM

The clearest difference is rating: iFertile at 4.7 against BillingsAppTM's 3.1. iFertile also leads on in-app purchases (none vs 4) and review sentiment (57% vs 32%). BillingsAppTM's advantage is ads (none vs shown) and update cadence (fortnightly vs every 24 months). On price and device support there is nothing between them.

Both are free to download. BillingsAppTM sells 4 in-app purchases, starting at $9.99 per year. iFertile asks for nothing beyond the download.

iFertile holds the better App Store score, 4.7 against 3.1. Both are backed by a comparable volume of ratings — 60 and 15 respectively. Written reviews point the same way: 57% of iFertile's written reviews are positive against 32% of BillingsAppTM's.

iFertile ships an update every 24 months, BillingsAppTM fortnightly. Both last shipped on September 21, 2026.

## The numbers

| Metric | iFertile | BillingsAppTM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (60 ratings)](https://appshunter.io/ios/app/ifertile/id919367481/reviews)** | [3.1 (15 ratings)](https://appshunter.io/ios/app/billingsapptm/id1435246315/reviews) |
| Number of ratings | **60** | 15 |
| Positive reviews | **57.1% of reviews** | 32.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 24 months | **Fortnightly** |
| Monetization | **Ad-supported** | Freemium |
| Size | 5 MB | 11 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [FBF Sistemas LTDA](https://appshunter.io/developer/321061871) | [Applied Programming LLC](https://appshunter.io/developer/1435246314) |

## 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


### BillingsAppTM

[App page](https://appshunter.io/ios/app/billingsapptm/id1435246315)

Track your fertility using the Billings Ovulation Method® with daily entries and chart sharing. Access premium features like direct teacher contact, chart printing, and custom color palettes through a subscription.

**Highlights:** Daily entry registration, Spouse and device linking, Share chart with teacher, Save charts securely, Offline registration, Direct teacher questions, Print and email charts

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Billings App Premium | $9.99 | per year |
| Grafica Billings PREMIUM | $2.99 | one-time |
| Billings PREMIUM 1 Year | $9.99 | one-time |
| Billings PREMIUM 5 Years | $24.99 | one-time |


## Frequently asked questions

### Is iFertile free?

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

### Is BillingsAppTM free?

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

### Which has better reviews, iFertile or BillingsAppTM?

iFertile is rated higher. iFertile averages 4.7 out of 5 from 60 ratings, while BillingsAppTM averages 3.1 from 15 ratings.

### Do iFertile or BillingsAppTM have ads?

iFertile shows ads; BillingsAppTM does not.

### Which is updated more often, iFertile or BillingsAppTM?

iFertile ships an update every 24 months, and BillingsAppTM fortnightly. Most recently, iFertile was updated on September 21, 2026 and BillingsAppTM on September 21, 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.*