# HM vs Drift

The clearest difference is in-app purchases: HM at none against Drift's 1. HM also leads on iOS requirement (15.6 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Drift sells 1 one-off in-app purchase. HM asks for nothing beyond the download.

## The numbers

| Metric | HM | Drift |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (9 ratings)](https://appshunter.io/ios/app/drift-ballistics-calculator/id6759738029/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 10 days |
| Monetization | — | Free |
| Size | 42 MB | 14 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Yilushi Technology Co.,ltd](https://appshunter.io/developer/1760309976) | [Bolze, LLC](https://appshunter.io/developer/1073511778) |

## What reviewers say

### HM

[App page](https://appshunter.io/ios/app/hm-fpv/id6747693159)

**Features:** macOS Compatibility

**In-app purchases:** none


### Drift

[App page](https://appshunter.io/ios/app/drift-ballistics-calculator/id6759738029)

This app provides precise long-range shooting calculations, including windage and elevation adjustments. It offers a vast database of ammunition and rifle configurations, with offline functionality and local data storage for privacy.

**Highlights:** 1,300+ bullets and 600+ factory loads, RK4 point-mass solver with G1/G7 drag models, Spin drift, Coriolis, and aerodynamic jump corrections, Range cards with smart intervals, Wind compass with clock-face input, Atmospheric auto-population from sensors, Offline-first operation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Drift Pro | $14.99 | one-time |


## Frequently asked questions

### Is HM free?

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

### Is Drift free?

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

### Do HM or Drift have ads?

Neither HM nor Drift shows ads.

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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.*