# SGMP vs Hydrodrags

The clearest difference is in-app purchases: Hydrodrags at none against SGMP's 2. Hydrodrags also leads on iOS requirement (13.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. SGMP sells 2 in-app purchases, starting at $4.99 per month. Hydrodrags asks for nothing beyond the download.

SGMP ships an update every 2 months, Hydrodrags monthly. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | SGMP | Hydrodrags |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/sgmp/id1472954577/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 17 MB | 98 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [Stephan Monette](https://appshunter.io/developer/1299469285) | [Koester Ventures Inc](https://appshunter.io/developer/1653225636) |

## What reviewers say

### SGMP

[App page](https://appshunter.io/ios/app/sgmp/id1472954577)

Access real-time drag racing time slips and detailed race data directly on your phone. Enhance your track experience with weather information and automatic density altitude calculations to help tune your engine and strategize for bracket races.

**Highlights:** Real-time time slip data, Detailed race information, Weather station data, Automatic density altitude calculation, Engine tuning assistance, Dial-in calculation for bracket racing

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SGMP Sharing Premium | $4.99 | per month |
| Annual Premium Access | $8.99 | per year |


### Hydrodrags

[App page](https://appshunter.io/ios/app/hydrodrags/id6759012656)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SGMP free?

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

### Is Hydrodrags free?

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

### Do SGMP or Hydrodrags have ads?

Neither SGMP nor Hydrodrags shows ads.

### Which is updated more often, SGMP or Hydrodrags?

SGMP ships an update every 2 months, and Hydrodrags monthly. Most recently, SGMP was updated on October 10, 2026 and Hydrodrags 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.*