Comparison

28X Private Period Tracker vs Trekr

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

Head to head
About

28X Private Period Tracker

Understand your menstrual cycle with a privacy-focused period tracker. Log moods, symptoms, and gain insights into your body's patterns from first periods to menopause. All your data stays on your device, with no ads or data selling.

Highlights
  • Period and cycle tracking
  • Menstrual phase predictions
  • Mood, energy, and symptom logging
  • Clinically informed women's health content
  • Data stored locally on device
  • No ads, subscriptions, or data selling
Features
Read full description

28X Private Period™ is a free-to-use period tracker, privacy safe, designed to create a beautiful space to understand your cycle, from first periods to perimenopause and menopause. Your data stays yours. Always. No selling data. A women's health app built entirely around privacy. Free for everyone, everywhere. Discreet, clinically informed and very private. The first period tracker to achieve a 93% ORCHA rating. Periods are better on 28X. WHY WE’RE DIFFERENT Most period trackers rely on subscriptions, ads, or sharing user data to make money. 28X is the new way to track periods. - No subscriptions. Free for everyone, everywhere. - You have the power over your own data. It stays with you on your device. - No data selling, no data sharing. No cloud servers. - No ads. No subscriptions. No tracking. No paywalls. No locked features. - Calm, simple period tracking designed around privacy. Understand your body without giving up your data. - We build 28X alongside our users, listening to real feedback to shape what people actually want and need from the app. To help keep 28X free for everyone, you can contribute to an optional pay-it-forward feature that supports development and women and girls in vulnerable communities worldwide. No obligation. WHAT’S INSIDE THE APP Simple period tracking tools to help you understand your body. - Track Your Cycle - Period and cycle tracking - Clear menstrual phase predictions - Mood, energy, PMS and symptom logging - Patterns you can actually understand LEARN WOMEN'S HEALTH Supportive, clinically informed content designed to be clear, accessible, and empowering. Learn about: - Hormones and cycle phases - PMS and monthly changes - Endometriosis and PCOS - Perimenopause and menopause - Skin, mood, and energy shifts - Nutrition, lifestyle, contraception, and fertility PRIVACY FIRST - Your data stays with you - All data is stored on your device - No cloud storage - No tracking or profiling - No ads - No selling your data Health tracking built around you, not your data. FOR EVERYONE, EVERYWHERE 28X is free, global, and inclusive, designed for all backgrounds and life stages. Whether you are tracking your first period or navigating menopause, 28X helps you understand your body without giving up your privacy. 28X Private Period™ is not a medical device and doesn’t diagnose, monitor, prevent, treat or predict any health condition. It’s also not designed to help you get pregnant or avoid pregnancy. Always speak to a healthcare professional for personal medical advice.

About

Trekr

Features
Read full description

Trekr is the app for people who want to get outside every day — not just serious hikers. Whether that's a mountain hike, a morning walk, or just stepping out for fresh air — Trekr tracks it, helps you share it, and keeps you coming back tomorrow. GO OUTSIDE EVERY DAY Build a daily streak by posting anything outside. A verified hike, a morning walk, a photo from your lunch break. Do it every day and watch your streak grow. Miss a day and it resets. TREKR PRO Unlock the full experience with Trekr Pro — 7 days free, then £2.99/month or £19.99/year. - AI Outdoor Coach — personalised advice from your actual activity history - Streak freeze — protect your streak once a week - Create unlimited clubs - Home screen weather and streak widget - Advanced stats and insights - Pro badge on your profile - Pro-only leaderboard TRACK YOUR ACTIVITY GPS tracks your hikes, walks and runs in real time — distance, pace, elevation, calories and speed. Your exact route is drawn on a map and every activity is GPS verified. Or skip the tracker and just post a photo outside. LIVE WEATHER See current conditions before you head out — temperature, wind, chance of rain and a 6-hour hourly forecast. CLUBS Create or join clubs with friends, family or your running group. Compete on weekly distance. See who's going outside the most. CONNECT WITH PEOPLE Follow friends, discover what people are doing outside, like and comment on posts. Build your outdoor community. COMPETE Climb the Summit Board leaderboard on distance and elevation. Complete daily outdoor challenges. Earn achievement badges. FEATURES — Daily outdoor streak tracker — AI outdoor coach (Pro) — GPS tracking for hikes, walks and runs — Live weather with hourly forecast — Streak milestone celebrations — Clubs with weekly leaderboards — Emergency SOS during hikes — Activity calendar on your profile — Share cards for Instagram Stories — Push notifications — Public and followers-only posts — Home screen widget (Pro) Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

28X Private Period Tracker4 screens
Trekr4 screens

Verdict

The call

The clearest difference is in-app purchases: Trekr at none against 28X Private Period Tracker's 1. 28X Private Period Tracker's advantage is iOS requirement (15.1 vs 17.6). On price, update cadence, 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. 28X Private Period Tracker sells 1 one-off in-app purchase. Trekr asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on November 5, 2026 and November 9, 2026 respectively.

Scorecard2 real differences · 8 level
28X Private Period Tracker versus Trekr: the parameters behind the verdict, then further details
Parameter28X Private Period TrackerTrekr
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better17.6
Further details — not scored
Size100 MB17 MB
Age rating4+12+
Developer28xAkansh Anish

In-app purchases

1 purchases

28X Private Period Tracker

One-time1
  • NEON Butterfly$1.99
None

Trekr

No in-app purchases

Questions

Is 28X Private Period Tracker free?
28X Private Period Tracker is free to download, with in-app purchases available.
Is Trekr free?
Trekr is free to download, with no in-app purchases.
Do 28X Private Period Tracker or Trekr have ads?
Neither 28X Private Period Tracker nor Trekr shows ads.
Which is updated more often, 28X Private Period Tracker or Trekr?
28X Private Period Tracker ships an update weekly, and Trekr weekly. Most recently, 28X Private Period Tracker was updated on November 5, 2026 and Trekr on November 9, 2026.

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