# DATOM vs Hertracker

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.

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.

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.

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

## The numbers

| Metric | DATOM | Hertracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/datom-cycle-walk-run/id6497486258/reviews)** | [4.4 (22 ratings)](https://appshunter.io/ios/app/hertracker/id6740878458/reviews) |
| Number of ratings | 1 | **22** |
| Positive reviews | — | 72.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 45 MB | 78 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [HMIE Software LLC](https://appshunter.io/developer/1625768765) | [Truffleleaf B.V.](https://appshunter.io/developer/1817217079) |

## What reviewers say

### DATOM

[App page](https://appshunter.io/ios/app/datom-cycle-walk-run/id6497486258)

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)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |
| Premium Unlock | $9.99 | one-time |


### Hertracker

[App page](https://appshunter.io/ios/app/hertracker/id6740878458)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bloom Monthly | $4.99 | per month |
| Blossom Monthly | $11.99 | per month |
| Bloom Annual | $39.99 | per year |
| Blossom Annual | $79.99 | per year |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*