NFP Tracker
Mitchell Fisher Health & Fitness iPhoneiPadiPod touch
NFP Tracker is a free Health & Fitness app for iPhone and iPad by Mitchell Fisher. Requires iOS 15.0. Updated October 2, 2026.
- Price
- Free
- on the App Store
- Size
- 29 MB
- Age 17+
- Updated
- Oct 2
- 2026 · v0.5.1
Screenshots
About NFP Tracker
NFP Tracker is a privacy-first charting app for individuals or couples practicing natural family planning. Log the observations you already track each day in one simple place: • Bleeding • Monitor readings • Mucus observations • Temperature • Symptoms • Notes Designed to replace paper charts and spreadsheets, NFP Tracker helps you keep consistent records and review your cycle history over time. Features: • Daily observation tracking • Shared access for spouses • Calendar and cycle history views • Reminders to log observations • CSV and PDF export options • Support for multiple NFP approaches, including Marquette, Creighton, Billings, and sympto-thermal tracking NFP Tracker provides educational summaries based on the data you enter. It is intended for tracking and recordkeeping only and does not provide medical advice, diagnosis, or treatment. Consult a licensed clinician or certified instructor for interpretation and guidance. NFP Tracker Terms of Use: https://nfptracker.com/terms NFP Tracker Privacy Policy: https://nfptracker.com/privacy Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
What’s new
Version 0.5.1 · Updated October 2, 2026
This is a big update, with a new chart, instructor sharing, ovulation test tracking and more accurate fertility calculations. NEW CYCLE CHART • The Insights temperature chart is now a full Cycle Chart. Your temperatures appear alongside lanes for mucus, bleeding, monitor readings, ovulation tests, intercourse and symptoms, with the fertile window, Peak Day, cover line and temperature shift marked. • Look back at any past cycle, not just the current one. • Compare Cycles overlays your recent cycles, lined up by cycle day 1, Peak Day or temperature shift. • Tap any day to see its details, or open either chart full screen. SHARE YOUR CHART WITH YOUR INSTRUCTOR • Invite your NFP instructor from Settings → Instructor Sharing. They get read-only access to your Calendar, Insights and History, and you can remove their access at any time. OVULATION TESTS (OPK) • Log positive or negative LH test results. Turn it on in Settings under the fields you track. • Positive results show on your Calendar and Cycle Chart and appear in exports. Ovulation tests are shown for reference only and never change your Peak Day or fertile window. MORE ACCURATE FERTILITY CALCULATIONS • Creighton and Billings: Peak Day is now the last day of peak-type mucus, as the methods teach, so post-Peak days now begin a few days later than before. • Sympto-Thermal: a temperature shift now needs three readings on consecutive days, and both the mucus and temperature signs are required before the fertile window closes. • If bleeding suggests a new cycle you haven't marked, the app shows a reminder to mark the cycle start instead of showing those days as infertile. • Marquette (monitor only) results are unchanged. If your Peak Day or post-Peak days look different from before, this is why. CYCLES • Days logged before your first marked cycle start now appear as a partial cycle and no longer count as cycle day 1. EXPORT AND IMPORT • CSV export now includes every field, including temperature, cycle day and cycle start, and opens cleanly in Excel. • New: import a CSV exported from NFP Tracker (Settings → Import Data). • PDF summaries: cycle lengths and dates are fixed, and future cycles are marked. FIXES AND IMPROVEMENTS • Temperatures keep two decimal places (96.67 stays 96.67). • Edit your first and last name in Settings → Your Profile. • Insights charts no longer run off the edge of phone screens. • Getting Started now has a "Review the latest release" step showing what's new. IOS • Updated for iOS 27. NFP Tracker now requires iOS 15 or later. • Behind-the-scenes improvements to opening invite links and app links.
App privacy
The developer, Mitchell Fisher, reported these privacy practices to Apple.
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Contact Info: Email Address, Name
- Identifiers: User ID, Device ID
- Usage Data: Product Interaction
- Diagnostics: Crash Data
- Health & Fitness: Health
- Sensitive Info: Sensitive Info
Used for: Analytics, Product Personalization, App Functionality
Alternatives to NFP Tracker
Looking for apps like NFP Tracker? Here are 6 similar apps on the App Store. The highest rated is Vainly Marquette Method™ NFP (5.0/5), and all 6 are free to download.
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NFP Calendar
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Vainly Marquette Method™ NFP
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Hypuro Fit
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PeakDay Fertility Tracker App
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Made for This Birth
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FEMM Period Ovulation Tracker
4.8
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| NFP Tracker | – | Free | October 2, 2026 | |
| NFP Calendar | 4.7 / 5 (3) | Free | Sep 18, 2026 | Compare |
| Vainly Marquette Method™ NFP | 5.0 / 5 (1) | Free | Jul 8, 2026 | Compare |
| Hypuro Fit | 4.9 / 5 (23) | Free | Sep 8, 2026 | Compare |
| PeakDay Fertility Tracker App | 3.0 / 5 (26) | Free | Sep 29, 2026 | Compare |
| Made for This Birth | 5.0 / 5 (356) | Free | Sep 5, 2026 | Compare |
| FEMM Period Ovulation Tracker | 4.8 / 5 (4,130) | Free | Jul 8, 2026 | Compare |
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