# OHA vs DATOM

The clearest difference is in-app purchases: OHA at none against DATOM's 2. OHA also leads on update cadence (every 5 days vs every 2 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. DATOM sells 2 in-app purchases, starting at $0.99 per month. OHA asks for nothing beyond the download.

OHA ships an update every 5 days, DATOM every 2 months. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | OHA | DATOM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/datom-cycle-walk-run/id6497486258/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 119 MB | 45 MB |
| Requires iOS | **12.4** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [ONE PORTFOLIO ADVISORY PRIVATE LIMITED](https://appshunter.io/developer/1565102581) | [HMIE Software LLC](https://appshunter.io/developer/1625768765) |

## What reviewers say

### OHA

[App page](https://appshunter.io/ios/app/oha-for-doctors/id6451135108)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is OHA free?

OHA is free to download, with no in-app purchases.

### Is DATOM free?

DATOM is free to download, with in-app purchases available.

### Do OHA or DATOM have ads?

Neither OHA nor DATOM shows ads.

### Which is updated more often, OHA or DATOM?

OHA ships an update every 5 days, and DATOM every 2 months. Most recently, OHA was updated on October 10, 2026 and DATOM on October 6, 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.*