BillingsAppTM vs iNatural
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
Read full descriptionHide full description
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.
iNatural
Read full descriptionHide full description
Inatural, adie ou alcance sua gravidez com saúde.
Screenshots
Verdict
The clearest difference is in-app purchases: iNatural at none against BillingsAppTM's 4. BillingsAppTM's advantage is update cadence (fortnightly vs every 17 months) and device support. On price 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. BillingsAppTM sells 4 in-app purchases, starting at $9.99 per year. iNatural asks for nothing beyond the download.
BillingsAppTM ships an update fortnightly, iNatural every 17 months. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.
| Parameter | BillingsAppTM | iNatural |
|---|---|---|
| Price | Free | Free |
| Rating | 3.2 (18 ratings) — better | — |
| Positive reviews | 34.5% of reviews | — |
| Number of ratings | 18 — better | — |
| Update frequency | Fortnightly — better | Every 17 months |
| Ads | No | — |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod — better | — |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 11 MB | 48 MB |
| Age rating | 4+ | 12+ |
| Developer | Applied Programming LLC | Argo Soluções tecnológicas LTDA |
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
iNatural
No in-app purchases
