iFertile vs BillingsAppTM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iFertile
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.
- Fertile period estimation
- Rhythm method calculations
- Pregnancy planning tool
- Contraceptive method (limited security)
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The rhythm method is based on calculations to estimate the fertile period of a woman. It can be a contraceptive method, but not very secure. It is most suitable for women who want to become pregnant so they need to know the fertile period.
BillingsAppTM
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.
- Daily entry registration
- Spouse and device linking
- Share chart with teacher
- Save charts securely
- Offline registration
- Direct teacher questions
- Print and email charts
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With our Free Version you will be able to: 1) Register daily entries using the Billings Ovulation Method® Chart 2) Link your account with your spouse and with all your mobile devices 3) Contact and share your chart with an Accredited Teacher 4) Safely save your charts 5) Register without Internet With our PREMIUM Subscription you will be able to: 1) Ask question directly to Accredited Teachers 2) Print your Charts 3) Email your Charts in PDF format 4) Create a reminder so you don´t forget 5) Select Custom Palette Colors 6) Backup all your charts in your device With the Free Version we want to reach all BOM Users and help them to easily keep their daily chart entries in a matter of seconds. Furthermore, buying the PREMIUM Subscription you are helping the association in your country and WOOMB International World Wide Organization.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | iFertile | BillingsAppTM |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (60 ratings) — better | 3.1 (15 ratings) |
| Positive reviews | 57.1% of reviews — better | 32.1% of reviews |
| Number of ratings | 60 — better | 15 |
| Update frequency | Every 24 months | Fortnightly — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 5 MB | 11 MB |
| Age rating | +4 | 4+ |
| Developer | FBF Sistemas LTDA | Applied Programming LLC |
Customer experience
iFertile
BillingsAppTM
In-app purchases
iFertile
No in-app purchases
BillingsAppTM
- Billings App Premium$9.991 Year
- Grafica Billings PREMIUM$2.99
- Billings PREMIUM 1 Year$9.99
- Billings PREMIUM 5 Years$24.99
Questions
Is iFertile free?
Is BillingsAppTM free?
Which has better reviews, iFertile or BillingsAppTM?
Do iFertile or BillingsAppTM have ads?
Which is updated more often, iFertile or BillingsAppTM?
Other comparisons
