# PSU Turf vs Soil Explorer

The clearest difference is review sentiment: PSU Turf at 100% against Soil Explorer's 0%. PSU Turf also leads on rating (5.0 vs 4.1) and iOS requirement (7.0 vs 14.7). Soil Explorer's advantage is ratings volume (9 vs 2). On price, update cadence, ads and in-app purchases there is nothing between them.

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

PSU Turf holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 2 and 9 respectively. Written reviews point the same way: 100% of PSU Turf's written reviews are positive against 0% of Soil Explorer's.

PSU Turf ships an update every 15 months, Soil Explorer every 11 months. The most recent releases landed on October 18, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | PSU Turf | Soil Explorer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/psu-turf/id597362140/reviews)** | [4.1 (9 ratings)](https://appshunter.io/ios/app/soil-explorer/id996159565/reviews) |
| Number of ratings | 2 | **9** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 11 months** |
| Monetization | Free | Free |
| Size | 54 MB | 172 MB |
| Requires iOS | **7.0** | 14.7 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [John Kaminski](https://appshunter.io/developer/597362143) | [Purdue University](https://appshunter.io/developer/371741257) |

## What reviewers say

### PSU Turf

[App page](https://appshunter.io/ios/app/psu-turf/id597362140)

This app keeps students and alumni of a renowned turfgrass program informed about events, news, and class schedules. It connects users with one of the oldest and most respected turfgrass programs in the nation.

**Highlights:** Stay informed on upcoming events, Receive Turfgrass news updates, Access class schedules, Connect with alumni network, Learn about program history

**Features:** macOS Compatibility

**In-app purchases:** none


### Soil Explorer

[App page](https://appshunter.io/ios/app/soil-explorer/id996159565)

Discover detailed soil property and landscape maps for U.S. states and global soil distributions. Understand how map features relate to real-world observations. This educational tool uses data from USDA and USGS to illustrate complex soil-landscape relationships.

**Highlights:** Detailed soil property maps, Landscape visualizations, Global soil distribution maps, Field observation correlation, USDA NRCS data integration, USGS data integration

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PSU Turf free?

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

### Is Soil Explorer free?

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

### Which has better reviews, PSU Turf or Soil Explorer?

PSU Turf is rated higher. PSU Turf averages 5.0 out of 5 from 2 ratings, while Soil Explorer averages 4.1 from 9 ratings.

### Do PSU Turf or Soil Explorer have ads?

Neither PSU Turf nor Soil Explorer shows ads.

### Which is updated more often, PSU Turf or Soil Explorer?

PSU Turf ships an update every 15 months, and Soil Explorer every 11 months. Most recently, PSU Turf was updated on October 18, 2026 and Soil Explorer on October 17, 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.*