Comparison

Sirrus vs Ag PhD Soils

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Sirrus

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
Read full description

Sirrus helps agronomists and farmers collaborate on farming decisions by making field data accessible and easy to collect. By connecting to the agX Platform, standardized field data is available offline and can be shared with other users and applications. Features: * Scout crops for pest pressures and easily record and collect observation photos * Create and share recommendation from the field * Generate PDF reports and share via email or text * Soil sample using a grid, zones, or previous soil sampling points * View fertilizer and nutrient recommendations * Send recommendations wirelessly using Raven Slingshot® * Export data as a shapefile * Receive rainfall estimates updated to the hour for each field * Drive or draw new field boundaries * Store and share data securely via the agX Platform ACCOMPLISH EVEN MORE WITH SIRRUS PREMIUM! Sirrus Premium unlocks advanced features: * Advanced Fertilizer Recommendation Editor – Edit variable rate recommendations by total product or cost * Product Labels/SDS – View up to date product information, labels, SDS and store for offline use * Variety Tech Sheets – View and share variety traits/information and store for offline use * Premium Reports – Beautiful PDF reports that cover your Scouting and Recommendation communication needs * Recents Search – A tool to increase efficiency in recommendation creation by sourcing previous activities * $49.99 Monthly, $499.99 Annually *Continued use of GPS running in the background can dramatically decrease battery life. *Sirrus Premium subscription prices may vary by location. Subscriptions will be charged to your credit card through your iTunes account. Your subscriptions will automatically renew unless canceled at least 24 hours before the end of the current period. Subscriptions may be managed and auto-renewal may be turned off by going to Account Settings after purchase. Privacy Policy: https://www.reedbusiness.com/privacy-policy/

About

Ag PhD Soils

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
Read full description

Ag PhD Soils provides you with a fast, accurate tool for soil sampling. Designed to save you money and maximize your yields, Ag PhD Soils provides you with unmatched soil testing expertise at your fingertips. You will receive high quality lab results and personalized recommendations from the Ag PhD experts, Brian and Darren Hefty. FEATURES INCLUDE -Easy step process for grid sampling your fields. -FAST lab results in 5-7 days. -Aerial imagery maps of your fields. -Unlimited access to Precision Ag Specialists -Test as many or as few acres as you choose. Simply pay as you go, there are no contracts or obligations. IN THE FIELD (on your smart phone or tablet) -Sync your mobile devices to stay updated. -Work without cellular service. -Draw field boundaries with GPS. -High contrast viewing option for better visibility in the sunlight. -Create new soil sample jobs including setting grids for your field. -Save time. Customers report easily sampling over 1000 acres per day. AT YOUR DESK (on your Ag PhD Soils Web account) -Create new soil sample jobs including setting grids for your field. -Print shipping sheets to send to the lab with your samples. -View and print lab results/analysis. -View and print fertilizer recommendation maps. -View and print aerial images of your fields. -Order bags, boxes and shipping labels based on the estimated acreage to be tested. -Generate Variable Rate Prescriptions and download recommendations and controller files. -View complete history of your soil tests. -Automatic data back-up. Ag PhD Soils works exclusively with Midwest Laboratories to provide you with the most comprehensive test package available.

Screenshots

Sirrus4 screens
Ag PhD Soils4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard7 real differences · 3 level
Sirrus versus Ag PhD Soils: the parameters behind the verdict, then further details
ParameterSirrusAg PhD Soils
PriceFreeFree
Rating3.5 (43 ratings) — better1.6 (13 ratings)
Positive reviews43.8% of reviews — better0.0% of reviews
Number of ratings43 — better13
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.011.0 — better
Further details — not scored
Size117 MB18 MB
Age rating4+4+
DeveloperTelus Ag and Consumer GoodsIFA Productions Inc.

Customer experience

Sirrus

All ratings43 ratings
Positive60.5%
Neutral2.3%
Negative37.2%
Written reviews16 reviews
Positive43.8%
Neutral6.3%
Negative50.0%

Ag PhD Soils

All ratings13 ratings
Positive15.4%
Neutral0.0%
Negative84.6%
Written reviews4 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

2 purchases

Sirrus

Subscriptions2
  • Sirrus Premium$62.001 Month
  • Sirrus Premium$749.991 Year
None

Ag PhD Soils

No in-app purchases

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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