Quick Commodities vs Corn Diseases
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
Corn Diseases
This app offers a comprehensive guide to common corn diseases found in the US and Canada. It focuses on practical, in-field diagnosis to help users identify and understand various crop ailments.
- Overview of US and Canada corn diseases
- Emphasis on field diagnosis
- Practical identification tools
- Crop ailment information
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Provides an overview of the corn diseases that occur in the US and Canada, with an emphasis on diagnosing diseases in the field.
Screenshots
Verdict
The clearest difference is in-app purchases: Corn Diseases at none against Quick Commodities's 6. Corn Diseases also leads on iOS requirement (8.1 vs 15.0). Quick Commodities's advantage is update cadence (fortnightly vs every 15 months) and ratings volume (505 vs 1). 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. Corn Diseases asks for nothing beyond the download.
Quick Commodities holds the better App Store score, 4.3 against 4.0. That said, the two scores are not equally well evidenced: Quick Commodities has 505 ratings behind it against 1, so its average is the more settled of the two.
Quick Commodities ships an update fortnightly, Corn Diseases every 15 months. The most recent releases landed on September 26, 2026 and October 1, 2026 respectively.
| Parameter | Quick Commodities | Corn Diseases |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (505 ratings) — better | 4.0 (1 ratings) |
| Positive reviews | 24.2% of reviews | — |
| Number of ratings | 505 — better | 1 |
| Update frequency | Fortnightly — better | Every 15 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | Free — better |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 8.1 — better |
| Further details — not scored | ||
| Size | 8 MB | 16 MB |
| Age rating | +4 | 4+ |
| Developer | Armchair Engineering | Ag PhD |
Customer experience
Quick Commodities
Corn Diseases
Bugs and 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
Corn Diseases
Not enough reviews yet to summarise bugs or requests.
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
Corn Diseases
No in-app purchases
Questions
Is Quick Commodities free?
Is Corn Diseases free?
Which has better reviews, Quick Commodities or Corn Diseases?
Do Quick Commodities or Corn Diseases have ads?
Which is updated more often, Quick Commodities or Corn Diseases?
Other comparisons
