# USFS Risk Calculator vs STFM

The clearest difference is update cadence: STFM at every 2 months against USFS Risk Calculator's every 32 months. STFM also leads on iOS requirement (11.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

USFS Risk Calculator ships an update every 32 months, STFM every 2 months. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | USFS Risk Calculator | STFM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.3 (7 ratings)](https://appshunter.io/ios/app/stfm/id1618803987/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 32 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 42 MB | 67 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [US Forest Service](https://appshunter.io/developer/949583790) | [Society of Teachers of Family Medicine](https://appshunter.io/developer/386248110) |

## What reviewers say

### USFS Risk Calculator

[App page](https://appshunter.io/ios/app/usfs-risk-calculator/id1496807580)

**Features:** macOS Compatibility

**In-app purchases:** none


### STFM

[App page](https://appshunter.io/ios/app/stfm/id1618803987)

Access event schedules, session details, maps, and presenter information. Stay updated with the latest event news and navigate venues with ease.

**Highlights:** Search sessions, Access schedule and updates, Detailed event information, Event maps, Presenter details

**In-app purchases:** none


## Frequently asked questions

### Is USFS Risk Calculator free?

USFS Risk Calculator is free to download, with no in-app purchases.

### Is STFM free?

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

### Do USFS Risk Calculator or STFM have ads?

Neither USFS Risk Calculator nor STFM shows ads.

### Which is updated more often, USFS Risk Calculator or STFM?

USFS Risk Calculator ships an update every 32 months, and STFM every 2 months. Most recently, USFS Risk Calculator was updated on October 25, 2026 and STFM on October 30, 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.*