Best Basal Body Temperature Apps

248+ iOS apps curated and reviewed

3.7 avg rating
19 free apps
Updated October 2026

Out of 248+ basal body temperature apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Basal Body Temperature Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Body Temperature App For FeverBody Temperature App For FeverFree4.7★ (22K)NoYesOct 2026
2Basal body temperature : eggysBasal body temperature : eggysFree1.8★ (4)YesNoMay 2026
3Thermometer: Body TemperatureThermometer: Body TemperatureFree4.6★ (409)NoYesOct 2026
4Natural Cycles: Fertility AppNatural Cycles: Fertility AppFree4.8★ (30K)YesYesOct 2026
5Femometer Fertility TrackerFemometer Fertility TrackerFree4.9★ (71K)NoYesOct 2026
6Body Temperature - HealthTrackBody Temperature - HealthTrackFree4.5★ (78)NoYesOct 2026
7Body Temperature TrackerBody Temperature TrackerFree2.3★ (3)NoYesOct 2026
8Body Temperature NotepadBody Temperature NotepadFree—YesYesMay 2026

Top Picks for Basal Body Temperature

Body Temperature App For Fever#1

Body Temperature App For Fever by AboutMe Apps, Inc.

Thermometer. Checker. Tracker
Editor's Choice
🏥 Medical
4.7😞(22K ratings)
FreeIn-App Purchases
#18in Medical
Body Temperature App For Fever screenshot 1
Body Temperature App For Fever screenshot 2
Body Temperature App For Fever screenshot 3
Body Temperature App For Fever screenshot 4
Body Temperature App For Fever screenshot 5
Body Temperature App For Fever screenshot 6

Estimate and track body temperature trends to monitor potential fever symptoms. Log data, export reports for healthcare providers, and monitor family members' temperatures. Includes features like heart rate estimation and symptom tracking.

What We Love

  • ⭐ Accurate temperature readings
  • 📊 Helpful for tracking health symptoms
  • 🔍 Useful when no thermometer is available

Room to Improve

  • 💰 Subscription-based model
  • 🤔 Misleading claims about temperature measurement
  • 🤖 Inaccurate temperature estimates
  • 🔒 Lack of transparency around subscription details
4.6😞(409 ratings)
FreeIn-App Purchases
Thermometer: Body Temperature screenshot 1
Thermometer: Body Temperature screenshot 2
Thermometer: Body Temperature screenshot 3
Thermometer: Body Temperature screenshot 4
Thermometer: Body Temperature screenshot 5

Estimate body temperature using your smartphone without a physical thermometer. Track heart rate, blood pressure, and sync with Apple Watch for real-time fever alerts. Log custom health data and generate shareable PDF reports.

What We Love

  • 🚀 Accurate temperature readings
  • 👍 Helpful for tracking health issues
  • 👍 Useful when no thermometer is available
  • 👍 Reliable app with good support

Room to Improve

  • 🐛 Inaccurate temperature readings
  • 💰 Expensive subscription
  • 🤖 Outdated user interface
  • 🤔 Unclear free vs. premium features

More Basal Body Temperature apps to explore

FAQ about Basal Body Temperature

What are the best basal body temperature apps for iPhone?
Body Temperature App For Fever tops our basal body temperature apps ranking as of October 2026, with a 4.7-star average from 22K App Store ratings, and it's free to download.
Yes — 19 of the top basal body temperature apps we rank are free to download, including Body Temperature App For Fever and Basal body temperature : eggys.
Body Temperature App For Fever has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 248+ basal body temperature apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.

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