Comparison

Period vs MKX coaching

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

Head to head
About

Period

Track your menstrual cycle, log period dates, ovulation test results, and symptoms. Gain insights into fertility probability based on your cycle length. This app helps predict periods and monitor cycles.

Highlights
  • Menstrual cycle tracking
  • Period logging
  • Ovulation test logging
  • Symptom tracking
  • Fertility probability insights
  • Cycle length comparison
Read full description

View where you are in your cycle with the Period Tracker app. You have the option to manually log your periods, ovulation test results and keep track of your menstrual cycle symptoms. Get insights into how the probability of peak fertility varies for women with the same cycle length as you. This app is designed for use by women who want to predict their periods, track their cycles or try for a baby. It should not be used as a method of contraception.

About

MKX coaching

Features
Read full description

Welcome to MKX Coaching! My online coaching program combines expert-level nutrition guidance with personalized training plans built for your goals, your schedule, and your lifestyle. Whether you’re chasing fat loss, strength gains, total body transformation, or competition and elite athletic performance, this is where structure meets accountability and where your excuses get left behind. Let’s get to work! What’s included - 30-minute initial introductory call to establish your individual needs and goals - Fully customized nutrition plan based on your specific needs and goals - Fully customized strength and conditioning program - Direct messaging access for questions, guidance, or motivation. 24/7, 365 support, I am fully dedicated to your success and therefore make myself available anytime for a more personal experience - Weekly check-ins with personalized feedback and adjustments to the plan to continue progress - Monthly scheduled calls for more in-depth discussion on progress and questions. This gives the client a more personal way to communicate questions and become more involved in the process and program. About me Hi, I’m Dr. Matthew Kowantz, founder of MKX Coaching. With a background in physical therapy and over 15 years of hands-on experience working with thousands of clients from professional athletes to everyday individuals, I’ve built MKX Coaching to bridge the gap between science-based training, advanced nutrition, and sustainable lifestyle changes My career began in the world of physical therapy, where I developed a deep understanding of how the body moves, heals, and performs at its best. Over the years, I’ve had the privilege of working with elite athletes across various sports, helping them optimize performance, recover smarter, and build strength without sacrificing longevity. I hold advanced certifications in both strength training and nutrition, and I bring that knowledge into every program I design – whether your goal is fat loss, muscle gain, improved mobility, or peak performance. What sets MKX Coaching apart is the individualized approach: no cookie-cutter plans, just evidence-based strategies tailored to your goals, your body, and your lifestyle. This isn’t just about fitness, it’s about long-term success, health, and performance. Whether you’re an athlete, a busy professional, or someone ready to take control of your health, I’m here to guide you every step of the way! *App access requires a paid coaching plan. Terms Of Use: https://kahunas.io/terms-conditions Privacy Policy: https://kahunas.io/privacy

Screenshots

Period4 screens
MKX coaching3 screens

Verdict

The call

The clearest difference is in-app purchases: Period at none against MKX coaching's 1. Period also leads on update cadence (monthly vs every 4 months) and iOS requirement (13.0 vs 15.0). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. MKX coaching sells 1 in-app purchase, starting at $299.99 per month. Period asks for nothing beyond the download.

UpkeepUpdate frequency

Period ships an update monthly, MKX coaching every 4 months. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.

Scorecard3 real differences · 7 level
Period versus MKX coaching: the parameters behind the verdict, then further details
ParameterPeriodMKX coaching
PriceFreeFree
Rating4.9 (2.8K ratings) — better—
Positive reviews53.8% of reviews—
Number of ratings2.8K — better—
Update frequencyMonthly — betterEvery 4 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.0 — better15.0
Further details — not scored
Size56 MB56 MB
Age rating12+4+
DeveloperSPD Development Company LtdMatthew Kowantz

Bugs and requests

Period

Reported bugs

3 issues
  • Dates and data getting changed after updates
  • Calendar not populating after updates
  • Whole calendar getting erased after updates

Requested features

2 requests
  • Add option to log basal body temperature
  • Improve notification customization

MKX coaching

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Period

No in-app purchases

1 purchases

MKX coaching

Subscriptions1
  • 1 Month subscription$299.991 Month

Questions

Is Period free?
Period is free to download, with no in-app purchases.
Is MKX coaching free?
MKX coaching is free to download, with in-app purchases available.
Do Period or MKX coaching have ads?
Neither Period nor MKX coaching shows ads.
Which is updated more often, Period or MKX coaching?
Period ships an update monthly, and MKX coaching every 4 months. Most recently, Period was updated on October 24, 2026 and MKX coaching on October 11, 2026.

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