Ag PhD Field Guide vs Quick Commodities
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ag PhD Field Guide
Identify common weeds and insects in your fields with detailed photos and control recommendations. Access the latest agronomy information and educational content to improve your farming practices.
- Pest identification by name
- Photos of weeds and insects
- Control recommendations
- Agronomy information
- Access to newsletters and university content
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The Ag PhD Field Guide helps you to identify problem pests out in your field. You can browse weeds and insects by name and view photos and read control recommendations. The Ag PhD Field Guide also gives you the most up-to-date agronomy information through the FMC HatchTrak newsletter and the Ag PhD University.
Quick Commodities
Access real-time and historical commodity prices for 15+ key markets. Track price changes with a simple, information-dense interface and customize your view with accent colors and widgets. Stay informed on market shifts with data spanning up to 36 months.
- Real-time commodity prices
- Historical price data (1-36 months)
- 15+ common commodities tracked
- Customizable accent colors
- Widgets for quick access
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A glanceable overview of the commodities market in your pocket! Quick Commodities is the easiest way to stay up-to-date with market changes, with recent and historical price data at your fingertips via a simple and information-dense interface. Features include: • Price and price change data for 15 of the most common commodities • Historical price data, showing either last 1, 3, 6, 12, 24 or 36 months • Set an accent color to better adjust the interface to your taste • Widgets Currently available commodities: - Aluminium - Brent Oil - Coal - Cocoa - Coffee - Copper - Corn - Cotton - Crude Oil - Gold - Iron Ore - Lean Hogs - Live Cattle - Lumber - Natural Gas - Oats - Platinum - Silver - Soybeans - Sugar - Wheat Quick Commodities subscription will be charged to your account after your confirmation of purchase. Your subscription will automatically renew every month and be charged to your account. Subscriptions renew automatically unless cancelled at least 24 hours prior to the end of the current period. Find the full terms and conditions, and our privacy policy, at https://armchairengineering.com/privacy.
Screenshots
Verdict
The clearest difference is rating: Quick Commodities at 4.3 against Ag PhD Field Guide's 2.5. Quick Commodities also leads on update cadence (fortnightly vs every 3 months) and ratings volume (505 vs 8). Ag PhD Field Guide's advantage is in-app purchases (none vs 6) and review sentiment (50% vs 24%). 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
Both are free to download. Quick Commodities sells 6 in-app purchases, starting at $2.99 per month. Ag PhD Field Guide asks for nothing beyond the download.
Quick Commodities holds the better App Store score, 4.3 against 2.5. That said, the two scores are not equally well evidenced: Quick Commodities has 505 ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 50% of Ag PhD Field Guide's written reviews are positive against 24% of Quick Commodities's, so the app with the better star average is not the one people write more warmly about.
Ag PhD Field Guide ships an update every 3 months, Quick Commodities fortnightly. The most recent releases landed on September 15, 2026 and September 22, 2026 respectively.
| Parameter | Ag PhD Field Guide | Quick Commodities |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (8 ratings) | 4.3 (505 ratings) — better |
| Positive reviews | 50.0% of reviews — better | 24.2% of reviews |
| Number of ratings | 8 | 505 — better |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Subscription |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 86 MB | 8 MB |
| Age rating | 4+ | +4 |
| Developer | Ag PhD | Armchair Engineering |
Customer experience
Ag PhD Field Guide
Quick Commodities
Bugs and requests
Ag PhD Field Guide
Not enough reviews yet to summarise bugs or requests.
Quick Commodities
Reported bugs
6 issues- App crashes on launch for Intel Mac Pro (Monterey 12.1)
- M1 Mac compatibility issues
- Subscription payment processed but app remains locked
- Widget options limited after update
- Graph settings/options don't function properly
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- Prices display inaccurately or lag significantly
Requested features
10 requests- Bitcoin and cryptocurrency support
- Real-time price updates
- Extended chart time frames (beyond 3 months)
- Milk/dairy commodity prices
- Silver price display
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- Custom widget sizes (6-tile option)
- Multiple chart time frame options (1-day, 5-day views)
- Custom sorting options (not just alphabetical)
- Live data feeds
- App widgets for quick access
In-app purchases
Ag PhD Field Guide
No in-app purchases
Quick Commodities
- Monthly7 Days trial$2.991 Month
- Legacy Quarterly$7.993 Months
- Legacy Half Yearly$13.996 Months
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- Legacy Yearly$24.991 Year
- Yearly$24.991 Year
- Outright Unlock$49.99
Questions
Is Ag PhD Field Guide free?
Is Quick Commodities free?
Which has better reviews, Ag PhD Field Guide or Quick Commodities?
Do Ag PhD Field Guide or Quick Commodities have ads?
Which is updated more often, Ag PhD Field Guide or Quick Commodities?
Other comparisons
