# NFP Calendar vs NFP Tracker

The clearest difference is in-app purchases: NFP Calendar at none against NFP Tracker's 2. NFP Tracker's advantage is update cadence (every 5 days vs every 2 months) and iOS requirement (15.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. NFP Tracker sells 2 in-app purchases, starting at $9.99 per month. NFP Calendar asks for nothing beyond the download.

NFP Calendar ships an update every 2 months, NFP Tracker every 5 days. The most recent releases landed on October 22, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | NFP Calendar | NFP Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/nfp-calendar/id6751753267/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 8 MB | 29 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [Esteban Cervera](https://appshunter.io/developer/1209785445) | [Mitchell Fisher](https://appshunter.io/developer/1867083161) |

## What reviewers say

### NFP Calendar

[App page](https://appshunter.io/ios/app/nfp-calendar/id6751753267)

Track your fertility naturally using various methods like Creighton or Billings. Record daily observations, manage your cycle, and export data for your instructor or doctor. Designed specifically for Natural Family Planning users.

**Highlights:** Record mucus observations, Track menstrual flow, Log intercourse timing, Automatic cycle detection, Generate PDF charts, Export data as JSON, iCloud sync

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

**In-app purchases:** none


### NFP Tracker

[App page](https://appshunter.io/ios/app/nfp-tracker/id6757454342)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Access (monthly) | $9.99 | per month |
| Access (yearly) | $64.99 | per year |


## Frequently asked questions

### Is NFP Calendar free?

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

### Is NFP Tracker free?

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

### Do NFP Calendar or NFP Tracker have ads?

Neither NFP Calendar nor NFP Tracker shows ads.

### Which is updated more often, NFP Calendar or NFP Tracker?

NFP Calendar ships an update every 2 months, and NFP Tracker every 5 days. Most recently, NFP Calendar was updated on October 22, 2026 and NFP Tracker on October 6, 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.*