# Sirrus vs Ag PhD Soils

The clearest difference is review sentiment: Sirrus at 44% against Ag PhD Soils's 0%. Sirrus also leads on rating (3.5 vs 1.6) and ratings volume (43 vs 13). Ag PhD Soils's advantage is in-app purchases (none vs 2) and update cadence (every 3 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Sirrus sells 2 in-app purchases, starting at $62.00 per month. Ag PhD Soils asks for nothing beyond the download.

Sirrus holds the better App Store score, 3.5 against 1.6. Both are backed by a comparable volume of ratings — 43 and 13 respectively. Written reviews point the same way: 44% of Sirrus's written reviews are positive against 0% of Ag PhD Soils's.

Sirrus ships an update every 2 months, Ag PhD Soils every 3 weeks. The most recent releases landed on September 22, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Sirrus | Ag PhD Soils |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (43 ratings)](https://appshunter.io/ios/app/sirrus/id684978309/reviews)** | [1.6 (13 ratings)](https://appshunter.io/ios/app/ag-phd-soils/id1291370839/reviews) |
| Number of ratings | **43** | 13 |
| Positive reviews | **43.8% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Freemium | **Free** |
| Size | 117 MB | 18 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Telus Ag and Consumer Goods](https://appshunter.io/developer/1746377892) | [IFA Productions Inc.](https://appshunter.io/developer/520210329) |

## What reviewers say

### Sirrus

[App page](https://appshunter.io/ios/app/sirrus/id684978309)

This app helps farmers and agronomists manage field data, scout crops, and make informed decisions. It allows for offline data collection, sharing recommendations, and generating reports. Premium features offer advanced editing and product information access.

**Highlights:** Offline field data collection, Crop scouting and observation recording, Create and share recommendations, Generate PDF reports, Soil sampling tools, Export data as shapefile, Hourly rainfall estimates

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sirrus Premium | $62.00 | per month |
| Sirrus Premium | $749.99 | per year |


### Ag PhD Soils

[App page](https://appshunter.io/ios/app/ag-phd-soils/id1291370839)

This app streamlines soil sampling with an easy step process, providing fast lab results and personalized recommendations from experts. It offers aerial imagery maps and unlimited access to precision ag specialists, allowing you to test any acreage with a pay-as-you-go model.

**Highlights:** Easy grid sampling process, Fast lab results (5-7 days), Aerial imagery maps, Unlimited precision ag specialist access, Pay-as-you-go testing, Offline work capability, GPS field boundary drawing

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sirrus free?

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

### Is Ag PhD Soils free?

Ag PhD Soils is free to download, with no in-app purchases.

### Which has better reviews, Sirrus or Ag PhD Soils?

Sirrus is rated higher. Sirrus averages 3.5 out of 5 from 43 ratings, while Ag PhD Soils averages 1.6 from 13 ratings.

### Do Sirrus or Ag PhD Soils have ads?

Neither Sirrus nor Ag PhD Soils shows ads.

### Which is updated more often, Sirrus or Ag PhD Soils?

Sirrus ships an update every 2 months, and Ag PhD Soils every 3 weeks. Most recently, Sirrus was updated on September 22, 2026 and Ag PhD Soils on June 4, 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.*