Comparison

Luna vs BKTFit

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Luna

This app helps women track their menstrual cycles, predict periods and ovulation, and monitor fertility. It offers features for managing irregular cycles, tracking symptoms, and planning for conception. Pregnancy tracking will be added soon.

Highlights
  • Menstrual cycle tracking
  • Ovulation prediction
  • Fertility day tracking
  • Irregular period management
  • PMS symptom recording
  • Pregnancy calendar (coming soon)
Features
Read full description

Luna is a smart and simple calendar for women's health tracking. Luna has different features such as tracking and predicting the exact calendar of menstruation and ovulation, and pregnancy tracking will be added to Luna's predictions soon. Luna accurately tracks the menstrual cycle and its flow rate. Also, it is also a smart tracker for regular and irregular periods, and based on the changing circumstances of each person, it can provide a reliable program for women trying to conceive. By keeping track of your periods in Luna's calendar, you can get accurate predictions of menstruation, ovulation, and fertility days. Luna is the simplest and most effective period and ovulation tracker and pregnancy program that uses machine learning (AI) and is available to everyone for free. Every woman of all ages, including teens, adults, and even those with irregular periods, can use this health tracker. You can use diverse feature lists of Luna including Keeping track of the days and intensity of your period in a useful period calendar, tracking your ovulation period, menstrual cycle reminder program, recording PMS states and symptoms, and following your pregnancy calendar.  Take full control of your health right now with Luna, and plan your various activities by predicting your future period. This app is intended for general information purposes and should not be used for prevention, diagnostic or therapeutic purposes. It is strongly recommended to seek a doctor’s advice in addition to using this app before making any medical decisions.

About

BKTFit

This app pairs with a non-medical bracelet to track exercise, sleep, and sedentary habits. It offers features like call/message alerts, remote camera control, and phone finding. Users can view daily, weekly, and monthly fitness trend reports.

Highlights
  • Exercise tracking
  • Sleep monitoring
  • Sedentary reminders
  • Call and message alerts
  • Remote camera control
  • Find my phone
  • Fitness trend reports
Features
Read full description

1. BKTFit bracelets are non-medical devices and provide reference data only, not for diagnosis or treatment. 2. The bracelet has features such as exercise tracking, sleep monitoring, and reminders to avoid prolonged sitting. 3. It can also alert users to important calls, messages, and locate misplaced phones. 4. Remote control photography mode and wrist turn-to-light up screen are additional functions. 5. The bracelet generates sports data reports for easy tracking of daily, weekly, and monthly fitness trends. Remember to consult a doctor before making any medical decisions based on the data.

Screenshots

Luna4 screens
BKTFit3 screens

Verdict

The call

The clearest difference is rating: Luna at 4.8 against BKTFit's 3.8. Luna also leads on ratings volume (3.9K vs 11) and review sentiment (44% vs 24%). BKTFit's advantage is iOS requirement (12.0 vs 15.5). On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Luna holds the better App Store score, 4.8 against 3.8. That said, the two scores are not equally well evidenced: Luna has 3.9K ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 44% of Luna's written reviews are positive against 24% of BKTFit's.

UpkeepUpdate frequency

Luna ships an update every 4 weeks, BKTFit every 6 weeks. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
Luna versus BKTFit: the parameters behind the verdict, then further details
ParameterLunaBKTFit
PriceFreeFree
Rating4.8 (3.9K ratings) — better3.8 (11 ratings)
Positive reviews43.5% of reviews — better23.5% of reviews
Number of ratings3.9K — better11
Update frequencyEvery 4 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.512.0 — better
Further details — not scored
Size30 MB137 MB
Age rating9+4+
DeveloperAshkan HatefShenzhen United Power Technology Co., Ltd.

Customer experience

Luna

All ratings3,199 ratings
Positive96.3%
Neutral1.3%
Negative2.3%
Written reviews85 reviews
Positive43.5%
Neutral11.8%
Negative44.7%

BKTFit

All ratings11 ratings
Positive72.7%
Neutral0.0%
Negative27.3%
Written reviews17 reviews
Positive23.5%
Neutral17.6%
Negative58.8%

Bugs and requests

Luna

Reported bugs

4 issues
  • Inability to send verification codes
  • Dashboard information not loading
  • Period tracking not working properly
  • Frequent crashes and freezes

Requested features

4 requests
  • Improved notification system
  • Integration with health apps
  • Ability to edit/update period data
  • Expand chat/community features

BKTFit

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Luna

No in-app purchases

None

BKTFit

No in-app purchases

Questions

Is Luna free?
Luna is free to download, with no in-app purchases.
Is BKTFit free?
BKTFit is free to download, with no in-app purchases.
Which has better reviews, Luna or BKTFit?
Luna is rated higher. Luna averages 4.8 out of 5 from 3.9K ratings, while BKTFit averages 3.8 from 11 ratings.
Do Luna or BKTFit have ads?
Neither Luna nor BKTFit shows ads.
Which is updated more often, Luna or BKTFit?
Luna ships an update every 4 weeks, and BKTFit every 6 weeks. Most recently, Luna was updated on November 7, 2026 and BKTFit on November 3, 2026.

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