iFertile vs e
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.
e
This app helps users track daily observations related to a specific fertility awareness method. It allows for easy viewing of cycle graphs on various devices and facilitates sharing information with partners and instructors. It is intended for users already familiar with the Billings Ovulation Method.
- Daily observation notes
- Cycle graph visualization
- Cross-device access
- Information sharing
- Method-specific tracking
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O aplicativo tem o objetivo de auxiliar nas anotações do método, aproveitando a facilidade de ter o celular sempre em mãos e que desta forma se possa anotar as observações diárias. A utilização desta ferramenta possibilitará ver o gráfico do ciclo a qualquer momento pelo celular, tablet ou computador e também proporcionará o compartilhamento das informações com maior facilidade entre o casal e a instrutora. Importante! O aplicativo não deverá ser usado por pessoas que não tenham conhecimento do método de ovulação billings, para isso procure uma instrutora oficial ou a CENPLAFAM - WOOMB BRASIL para maiores informações sobre o método.
Screenshots
Verdict
The clearest difference is review sentiment: iFertile at 57% against e's 0%. iFertile also leads on rating (4.7 vs 3.0) and ratings volume (60 vs 1). e's advantage is update cadence (monthly vs every 24 months) and monetization model (free vs ad-supported). On price, in-app purchases and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.
iFertile holds the better App Store score, 4.7 against 3.0. 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 point the same way: 57% of iFertile's written reviews are positive against 0% of e's.
iFertile ships an update every 24 months, e monthly. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.
| Parameter | iFertile | e |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (60 ratings) — better | 3.0 (1 ratings) |
| Positive reviews | 57.1% of reviews — better | 0.0% of reviews |
| Number of ratings | 60 — better | 1 |
| Update frequency | Every 24 months | Monthly — better |
| Ads | Yes | — |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | — |
| Requires iOS | 13.0 — better | 14.0.0 |
| Further details — not scored | ||
| Size | 5 MB | 52 MB |
| Age rating | +4 | 17+ |
| Developer | FBF Sistemas LTDA | VENDA NO DIGITAL SERVICOS DE MARKETING DIGITAL LTDA |
Customer experience
iFertile
e
In-app purchases
iFertile
No in-app purchases
e
No in-app purchases
Questions
Is iFertile free?
Is e free?
Which has better reviews, iFertile or e?
Which is updated more often, iFertile or e?
Other comparisons
