NFP Charting vs NFP Calendar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NFP Charting
Track your Natural Family Planning (NFP) charts online using the Billings Ovulation Method. This app allows you to enter data, share charts with your teacher, and view current and previous cycles. It is designed for users already trained in the Billings Ovulation Method.
- Track NFP charting data online
- Share charts with teachers
- Email charts
- View current and previous cycles
- Leave notes for teachers
- Access from computer
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Allows one free month of NFP Charting. The NFP Charting application allows you to keep track of your NFP chart online. (Note: This app is meant to be used with the Billings Ovulation Method of NFP Charting. There is no support for the Sympto-Thermal method.) This utility is not designed to teach you proper use of the Billings Ovulation Method of Natural Family Planning. It will not be useful to you unless you have been trained by a WOOMB certified teacher. You can find the nearest WOOMB certified teacher at http://www.boma-usa.com (for the United States) or http://www.WOOMB.org worldwide. FEATURES: -Enter your NFP Charting data from anywhere -Share your chart with your teacher -Email your chart to anyone -View your current cycle as well as your previous one -Leave notes for your teacher -Access your cycle from a computer at http://www.nfpcharting.com
NFP Calendar
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.
- Record mucus observations
- Track menstrual flow
- Log intercourse timing
- Automatic cycle detection
- Generate PDF charts
- Export data as JSON
- iCloud sync
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Track your fertility naturally with a beautiful, intuitive charting app designed for Natural Family Planning methods. NFP Calendar helps you record daily fertility observations following Creighton Model, Billings, or other mucus-based NFP methods. Whether you're trying to conceive or avoid pregnancy naturally, this app gives you everything you need to chart with confidence. DAILY CHARTING MADE SIMPLE - Record mucus observations: color, sensation, and stretch - Track menstrual flow intensity (heavy, moderate, light, spotting) - Log intercourse timing and frequency - Mark peak days and cycle starts - Add personal notes to any day POWERFUL CYCLE MANAGEMENT - Automatic cycle detection and numbering - Smart handling of spotting vs. true periods - View your complete cycle history at a glance - Navigate cycles easily with calendar and list views EXPORT & BACKUP - Generate beautiful PDF charts for your instructor or doctor - Export your data as JSON for backup - iCloud sync keeps your data safe across devices DESIGNED FOR NFP USERS Built specifically for fertility awareness methods, not just another period tracker. Every feature is tailored to the vocabulary and workflow of NFP charting. Your fertility data stays private on your device. No account required. Start charting your fertility journey today. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://estebancervera.github.io/nfp-support/
Screenshots
Verdict
The clearest difference is review sentiment: NFP Calendar at 100% against NFP Charting's 49%. NFP Calendar also leads on in-app purchases (none vs 6) and rating (4.7 vs 4.3). NFP Charting's advantage is iOS requirement (12.0 vs 26.0). On price, ratings volume, ads 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. NFP Charting sells 6 one-off in-app purchases. NFP Calendar asks for nothing beyond the download.
NFP Calendar holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 6 and 3 respectively. Written reviews point the same way: 49% of NFP Charting's written reviews are positive against 100% of NFP Calendar's.
NFP Charting ships an update every 4 months, NFP Calendar every 2 months. The most recent releases landed on October 23, 2026 and October 22, 2026 respectively.
| Parameter | NFP Charting | NFP Calendar |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (6 ratings) | 4.7 (3 ratings) — better |
| Positive reviews | 49.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 6 — better | 3 |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 6 MB | 8 MB |
| Age rating | 4+ | 12+ |
| Developer | Lawson Culver | Esteban Cervera |
Customer experience
NFP Charting
NFP Calendar
Bugs and requests
NFP Charting
Reported bugs
12 issues- Unable to log in
- App stopped working
- Website is down
- Overlapping/misaligned on iPhone
- Email version not printable
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- Crashes and freezes constantly
- View All charts in ascending order
- Accidentally delete info and cannot undo
- App crashes on launch
- App crashes every time opened
- App doesn't work
- App doesn't recognize password
Requested features
11 requests- Ability to send one chart at a time
- Update app for iPhone compatibility
- Make chart printable (PDF)
- Improve interface/design
- Add temperature tracking
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- Option for one-time purchase
- Undo delete action
- Offline component for iPod users
- Notation on entry screen for symbols
- Lower subscription fee
- Creighton-specific app
NFP Calendar
Not enough reviews yet to summarise bugs or requests.
In-app purchases
NFP Charting
- One Month Account Extension$2.99
- One Month$2.99
- Six Months Account Extension$11.99
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- Six Months$14.99
- One Year Account Extension$19.99
- One Year$24.99
NFP Calendar
No in-app purchases
Questions
Is NFP Charting free?
Is NFP Calendar free?
Which has better reviews, NFP Charting or NFP Calendar?
Do NFP Charting or NFP Calendar have ads?
Which is updated more often, NFP Charting or NFP Calendar?
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