Comparison

DATOM vs Hertracker

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

Head to head
About

DATOM

Analyze your cycling, running, and swimming workouts with detailed charts, maps, and trends. This app prioritizes your privacy, keeping all your data on your device without accounts or ads. It offers advanced metrics and comparisons to help you train smarter.

Highlights
  • High-resolution workout analysis
  • Advanced charts and maps
  • Workout comparisons and trends
  • Privacy-focused, no accounts or ads
  • HealthKit data integration
  • Shoe wear tracking
  • Advanced cycling metrics (TSS, IF)
Read full description

DATOM is a high-performance workout analysis app for runners, cyclists, hikers and swimmers. Private by design, with no accounts, no tracking and no ads. High-resolution workout analyses with advanced charts, maps, trends, and comparisons. Analyze workouts with high-resolution charts, detailed trends, and synchronized maps. Zoom into pace, power, heart rate, elevation, and other metrics to understand performance at a granular level. Compare workouts side by side, sort and rank your workout history by any metric, and use dual-axis charts to explore relationships between metrics. Advance cycling data includes Training Stress Score (TSS) and Intensity Factor (IF). DATOM reads stored HealthKit data directly so you can rediscover past workouts with greater clarity. Track mileage totals to identify overtraining or undertraining, monitor shoe wear to help reduce injury risk, and visualize workout trends to support smarter, data-driven training decisions. DATOM is private by design and built for athletes who value accuracy, insight, and control. Your workouts, routes, and health data are never uploaded, shared, nor sold. Your data stays on your device. Unlock peak performance, keep your privacy. Try the full app for 14 days, no subscription required. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Hertracker

This app combines period and habit tracking with Christian encouragement. It helps users understand how their cycle influences their mood and productivity, offering daily scriptures and guidance to align habits with faith and well-being.

Highlights
  • Period tracking
  • Habit tracking
  • Daily Scripture quotes
  • Christian encouragement
  • Cycle and habit correlation
  • Emotional and productivity insights
Features
Read full description

An active Hertracker Bloom subscription is required to access Hertracker. A Hertracker Blossom subscription is required to access additional journaling features. Be a woman that „Laughs at the future” with HerTracker. Hertracker is the perfect blend of habit and period tracking, designed to help you stay connected to your goals, manage your emotions and navigate life’s ups and downs in a Christ Centered way. Whether you’re feeling productive and energized or need a reminder to slow down, Hertracker guides you to welcome every phase of your cycle with practical tools and daily encouragement. Start Each Day with Faith Hertracker offers daily quotes, reminders and Scripture to encourage you and sometimes nudge u back on the right path. These personalized messages align with your current phase, helping you approach the day with joy, maturity and purpouse. Your Cycle and Habits Working Together Your menstrual cycle is part of your design, influencing how you feel, think, and accomplish the tasks of the day. Hertracker helps you connect the dots between your habits and cycle, so you can stay consistent, productive and connected to God. Spot patterns: Understand how different phases impact your focus, energy, and productivity. Adjust with faith: Make small changes to align your habits with how God has designed your body to feel during each phase. Go out of your comfort zone when you can, but also learn to listen and rest when there's a need. Overcome challenges: Find strength in Scripture and Christian encouragement to persevere through difficult moments. By understanding these rhythms, you’ll learn to manage your emotions and walk closely to God no matter the hormonal fluctuations. Download Hertracker Today God is a God of order. Begin your journey toward a closer resemblance to Him by cultivating healthy habits and understanding your natural cycles with HerTracker. Stay consistent, plan thoughtfully, and steward each day with diligence, seeking to glorify God in every detail of your life. Privacy policy: https://hertracker.com/privacy-policy/ Terms of service: https://hertracker.com/terms-of-service/ Important: Hertracker is not a medical or diagnostic tool and should not be relied upon for birth control or to assist with conception. Any forecasts, insights, or data provided within the app are for general informational use only and do not replace professional medical advice, diagnosis, or treatment. For any health-related questions or decisions, please consult a qualified healthcare professional. Hertracker’s journaling features are intended solely for personal reflection and informational purposes. The prompts, questions, and related features are not designed to provide therapy, mental health care, or medical guidance. If you encounter any issues while using the app, you can reach us at support@hertracker.com.

Screenshots

DATOM4 screens
Hertracker4 screens

Verdict

The call

The clearest difference is rating: DATOM at 5.0 against Hertracker's 4.4. Hertracker's advantage is update cadence (fortnightly vs every 2 months) and ratings volume (22 vs 1). On price, ads, in-app purchases and monetization model 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. DATOM sells 2 in-app purchases, starting at $0.99 per month and Hertracker sells 4 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

DATOM holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Hertracker has 22 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

DATOM ships an update every 2 months, Hertracker fortnightly. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 7 level
DATOM versus Hertracker: the parameters behind the verdict, then further details
ParameterDATOMHertracker
PriceFreeFree
Rating5.0 (1 ratings) — better4.4 (22 ratings)
Positive reviews—72.7% of reviews
Number of ratings122 — better
Update frequencyEvery 2 monthsFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhoneiPhone
Requires iOS17.016.6 — better
Further details — not scored
Size45 MB78 MB
Age rating4+12+
DeveloperHMIE Software LLCTruffleleaf B.V.

Customer experience

DATOM

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Hertracker

All ratings22 ratings
Positive81.8%
Neutral4.5%
Negative13.6%
Written reviews11 reviews
Positive72.7%
Neutral18.2%
Negative9.1%

In-app purchases

2 purchases

DATOM

Subscriptions1
  • Monthly Subscription$0.991 Month
One-time1
  • Premium Unlock$9.99
4 purchases

Hertracker

Subscriptions4
  • Bloom Monthly7 Days trial$4.991 Month
  • Blossom Monthly$11.991 Month
  • Bloom Annual$39.991 Year
Show 1 more
  • Blossom Annual$79.991 Year

Questions

Is DATOM free?
DATOM is free to download, with in-app purchases available.
Is Hertracker free?
Hertracker is free to download, with in-app purchases available.
Which has better reviews, DATOM or Hertracker?
DATOM is rated higher. DATOM averages 5.0 out of 5 from 1 ratings, while Hertracker averages 4.4 from 22 ratings.
Do DATOM or Hertracker have ads?
Neither DATOM nor Hertracker shows ads.
Which is updated more often, DATOM or Hertracker?
DATOM ships an update every 2 months, and Hertracker fortnightly. Most recently, DATOM was updated on October 6, 2026 and Hertracker on October 7, 2026.

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