Best apps like Chart35

10+ similar apps compared and reviewed

4.6 avg rating
10 free apps
Updated October 2026

Whether you want more options like Chart35 or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.

Top Alternatives to Chart35

4.3😐(6 ratings)
FreeIn-App Purchases
NFP Charting screenshot 1
NFP Charting screenshot 2
NFP Charting screenshot 3
NFP Charting screenshot 4
NFP Charting screenshot 5

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.

What We Love

  • 👍 Convenient chart access on phone
  • 👍 Replaces paper charts
  • 👍 Compatible with Creighton/Billings
  • 👍 Easy to share with instructor/doctor
  • 👍 Good for tracking fertility
  • 👍 Useful for travel
  • 👍 Customer service responsive
  • 👍 Real-time access
  • 👍 Simple and to the point

Room to Improve

  • 💸 Expensive subscription fees
  • 💸 Not a one-time purchase option
  • 💸 Perceived as a rip-off
  • 🐛 App crashes/stops working
  • 🐛 Website down
  • 🐛 Overlapping/misaligned on iPhone
  • 🐛 Not printable
  • 🐛 Interface is old/unappealing
  • 🐛 Difficult to maneuver/use
  • 🐛 Crashes and freezes constantly
  • 🐛 Charts in ascending order
  • 🐛 No temperature tracking
  • 🐛 Too easy to accidentally delete
  • 🐛 Not user-friendly
  • 🐛 No tutorial or help with symbols
  • 🐛 Not all Creighton descriptions included
  • 🐛 Clunky interface
  • 🐛 Ugly interface
  • 🐛 Needs to be rewritten
  • 🐛 No offline component
  • 🐛 No instructions
  • 🐛 No place for temps
  • 🐛 Subscription fee surprise

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